Abstract
The applicant Syngenta submitted a request to the competent national authority in the United Kingdom to evaluate the confirmatory data that were identified for azoxystrobin in the framework of the MRL review under Article 12 of Regulation (EC) No 396/2005 as not available, and to consider new good agricultural practices (GAPs) for lettuces and other salad plants. To address the data gaps, new residue trials performed on open leaf varieties of lettuce supporting adjusted indoor, northern and southern GAPs, an assessment of the genotoxicity of the livestock metabolites L1, L4 and L9 and an assessment of the human dietary exposure to the livestock metabolites L1, L4 and L9 were submitted. The data gaps were considered partially addressed. The new information provided may require a revision (lowering) of the existing MRLs for lettuce and other salad plants and further risk management consideration for MRLs in animal commodities.
Keywords: azoxystrobin, confirmatory data, pesticide, MRL review, risk assessment
Summary
In 2013, when the European Food Safety Authority (EFSA) reviewed the existing Maximum Residue Levels (MRLs) for azoxystrobin according to Article 12 of Regulation (EC) No 396/2005, EFSA identified some information as unavailable (data gaps) and derived tentative MRLs for those uses which were not fully supported by data but for which no risk to consumers was identified. The following data gaps were noted:
further information about the open leaf varieties used in the northern residue trials;
three additional residue trials supporting the southern outdoor GAP and four additional trials supporting the indoor GAP on lettuce other salad plants;
additional information on the toxicological relevance of metabolites L1, L4 and L9, which were identified in products of animal origin.
Tentative MRL proposals for Lamb's lettuces/corn salads, Escaroles/broad‐leaved endives, Cresses and other sprouts and shoots, Land cresses, Roman rocket/rucola, Red mustards, Baby leaf crops (including brassica species) and commodities of animal origin have been implemented in the MRL legislation by Commission Regulation (EU) No 2015/1040, including footnotes related to data gaps 1, 2 and 3, indicating the type of confirmatory data that should be provided by a party having an interest in maintaining the proposed tentative MRL by 1 July 2017.
In accordance with the agreed procedure set out in the working document SANTE/10235/2016, Syngenta submitted an application to the competent national authority in the United Kingdom (rapporteur Member State, RMS) to evaluate the confirmatory data addressing the data gaps identified during the MRL review. The RMS assessed the new information in an evaluation report, which was submitted to the European Commission and forwarded to the EFSA on 16 September 2019.
Together with the confirmatory data, the applicant submitted in accordance with Article 6 of Regulation (EC) No 396/2005, a request to confirm the existing MRL for the active substance azoxystrobin at the level of 15 mg/kg in lettuces and other salad plants. Following the assessment of the confirmatory data, the RMS proposed to lower the existing MRL from 15 mg/kg to 10 mg/kg in lettuces and other salad plants and to confirm the tentative residue definition for risk assessment and MRL in animal commodities. The RMS produced a single evaluation report, which was submitted to the European Commission and forwarded to the EFSA on 16 September 2019.
The summary table below provides an overview of the assessment of confirmatory data and the recommended MRL modifications to Regulation (EU) No 396/2005.
| Codea | Commodity | Existing MRLb | Proposed MRL | Conclusion/recommendation |
|---|---|---|---|---|
| Enforcement residue definition: Azoxystrobin | ||||
|
0251010 0251030 0251040 0251050 0251060 0251070 0251080 |
Lamb's lettuces/corn salads Escaroles/broad‐leaved endives Cresses and other sprouts and shoots Land cresses Roman rocket/rucola Red mustards Baby leaf crops (including brassica spp.) |
15 (c) | 10 | The data gap identified by EFSA has been addressed. The MRL may be lowered to 10 mg/kg in support of adjusted and authorised critical indoor GAPs. The previous consumer risk assessment remains valid |
| 0251020 | Lettuce | 15 | 10 | There were no data gaps identified for this commodity. However, the new data submitted in support of adjusted GAPs indicate that the current MRL can be lowered to the value of 10 mg/kg |
|
1011010 1012010 1013010 1014010 |
Swine muscle Bovine muscle Sheep muscle Goat muscle |
0.01* (d) |
0.01* | The data gap identified by EFSA is partially addressed as full characterisation of the toxicological profile of metabolites L1, L4 and L9 is not available. However, these metabolites were not found in muscle. Therefore, the existing MRLs are not affected by this data gap and can be confirmed |
|
1011020 1012020 1013020 1014020 |
Swine fat Bovine fat Sheep fat Goat fat |
0.05 (d) |
Further risk management considerations required | The data gap identified by EFSA is partially addressed as a full characterisation of the toxicological profile of metabolites L1, L4 and L9 is not available. However, these metabolites were not found in fat. Therefore, the existing MRLs are not affected by this data gap. However, these MRLs are based on CXLs, derived by the JMPR for a more critical EU livestock dietary burden. The EU dietary burden calculated under this assessment is lower, indicating that an MRL of 0.01* mg/kg would be sufficient |
|
1011030 1011040 1011050 1012030 1012040 1012050 1013030 1013040 1013050 1014030 1014040 1014050 |
Swine liver Swine kidney Swine (edible offals) Bovine liver Bovine kidney Bovine (edible offals) Sheep liver Sheep kidney Sheep (edible offals) Goat liver Goat kidney Goat (edible offals) |
0.07 (d) |
Further risk management considerations required |
The data gap identified by EFSA is partially addressed as the genotoxic potential of metabolites L1, L4 and L9 (found exclusively in ruminant liver and kidney) can be ruled out, but a full characterisation of the toxicological profile of these metabolites has not been provided The indicative human exposure resulting to the occurrence of metabolites L1, L4 and L9 in liver and kidney (estimated for the EU livestock dietary burden) was estimated and the RMS concluded that the low exposure does not trigger further investigation for these compounds. The RMS proposed to confirm the risk assessment residue definition in animal commodities as azoxystrobin alone Further risk management considerations should be given to decide whether the argument of the low exposure is acceptable to waive the need to submit data on the general toxicity of L1, L4 and L9. Nevertheless, EFSA noted that this argument does not support the existing EU MRLs (based on CXLs and more critical (5N) livestock dietary burden). Therefore, in the case where risk managers would accept the rationale of the RMS to address the data gap, MRLs for liver, kidney and other edible offals should be set at the LOQ (0.01* mg/kg), in line with the EU dietary burden calculated under the present assessment |
|
1016010 1016020 1016030 1016040 1016050 |
Poultry muscle Poultry fat Poultry liver Poultry kidney Poultry (edible offals) |
0.01* (d) |
0.01* |
The data gap identified by EFSA is partially addressed as full characterisation of the toxicological profile of metabolites L1, L4 and L9 is not available However, as these compounds were not found in the metabolism studies performed on poultry, the existing MRLs are not affected by this data gap and can be confirmed |
|
1020010 1020020 1020030 1020040 |
Cattle milk Sheep milk Goat milk Horse milk |
0.01* (d) |
0.01* |
The data gap identified by EFSA is partially addressed as full characterisation of the toxicological profile of metabolites L1, L4 and L9 is not available However, as these compounds were not found in milk, the existing MRLs are not affected by this data gap and can be confirmed |
| 1030000 | Birds eggs |
0.01* (d) |
0.01* |
The data gap identified by EFSA is partially addressed as full characterisation of the toxicological profile of metabolites L1, L4 and L9 is not available However, as these compounds were not found in eggs, the existing MRL is not affected by this data gap and can be confirmed |
Indicates that the MRL is proposed at the limit of quantification.
Commodity code number according to Annex I of Regulation (EC) No 396/2005.
Existing EU MRL and corresponding footnote on confirmatory data.
The European Food Safety Authority identified some information on residue trials as unavailable. When re‐viewing the MRL, the Commission will take into account the information referred to in the first sentence, if it is submitted by 1 July 2017, or, if that information is not submitted by that date, the lack of it. (Footnote related to data gap No 1 and No 2).
The European Food Safety Authority identified some information on toxicity of metabolites as unavailable. When re‐viewing the MRL, the Commission will take into account the information referred to in the first sentence, if it is submitted by 1 July 2017, or, if that information is not submitted by that date, the lack of it. (Footnote related to data gap No 3).
Assessment
The review of existing maximum residue levels (MRLs) for the active substance azoxystrobin according to Article 12 of Regulation (EC) No 396/20051 (MRL review) has been performed in 2013 (EFSA, 2013). European Food Safety Authority (EFSA) identified some information as unavailable (data gaps) and derived tentative MRLs for those uses not fully supported by data but for which no risk to consumers was identified. The list of GAPs assessed in the framework of the MRL review that were not fully supported by data and for which confirmatory data were requested are listed in Appendix A.
Following the review of existing MRLs, the legal limits have been modified by Commission Regulation (EU) No 2015/10402, including footnote(s) for tentative MRLs that specified the type of information that was identified as missing. Any party having an interest in maintaining the proposed tentative MRL was requested to address the confirmatory data by 1 July 2017.
In accordance with the specific provisions set out in the working document of the European Commission SANTE/10235/2016 (European Commission, 2020), the applicant, Syngenta, submitted an application to the competent national authority in the United Kingdom (designated rapporteur Member State, RMS) to evaluate the confirmatory data identified during the MRL review. The following data gaps were identified by EFSA:
further information about the open leaf varieties used in the northern residue trials;
three additional residue trials supporting the southern outdoor GAP and four additional trials supporting the indoor GAP on lettuce other salad plants;
additional information on the toxicological relevance of metabolites L1, L4 and L9, which were identified in products of animal origin.
Tentative MRL proposals for lamb's lettuces/corn salads, escaroles/broad‐leaved endives, cresses and other sprouts and shoots, land cresses, Roman rocket/rucola, red mustards, baby leaf crops (including brassica species) and commodities of animal origin have been implemented in the MRL legislation by Commission Regulation (EU) No 2015/1040, including footnotes related to data gaps 1, 2 and 3, indicating the type of confirmatory data that should be provided by a party having an interest in maintaining the proposed tentative MRL by 1 July 2017.
To address the data gaps identified by EFSA, the applicant provided new residue trials performed on open leaf varieties of lettuce supporting indoor, northern and southern GAPs, an assessment of the genotoxicity of the livestock metabolites L1, L4 and L9 and further detailed assessment of the residue levels of livestock metabolites L1, L4 and L9 and their expected intake in the human diet.
The RMS assessed the new information in an evaluation report, which was submitted to the European Commission and forwarded to EFSA on 16 September 2019 (United Kingdom, 2019). EFSA assessed the application as requested by the European Commission in accordance with Article 9 of Regulation (EC) No 396/2005.
In addition, under the same application and in accordance with Article 6 of Regulation (EC) No 396/2005, the applicant Syngenta also submitted an application to modify the existing MRLs for azoxystrobin in lettuces and other salad plants. The RMS produced a single evaluation report, which was submitted to the European Commission and forwarded to the EFSA on 16 September 2019.
EFSA based its assessment on the evaluation report submitted by the RMS (United Kingdom, 2019), the reasoned opinion on the MRL review according to Article 12 of Regulation (EC) No 396/2005 and additional assessments on azoxystrobin performed after the MRL review (EFSA, 2016a,b).
For this application, the data requirements established in Regulation (EU) No 544/20113 and the relevant guidance documents applicable at the date of implementation of the confirmatory data requirements by Regulation (EU) No 2015/1040 and the guidance documents applicable at the date of submission of the application to the RMS are applicable (European Commission, 1997a, 1997b, 1997c, 1997d, 1997e, 1997f, 1997g, 2000, 2010a, 2010b, 2017; OECD, 2011, 2013). The assessment is performed in accordance with the legal provisions of the Uniform Principles for the Evaluation and the Authorisation of Plant Protection Products adopted by Commission Regulation (EU) No 546/20114.
An updated list of end points, including the end points of relevant studies assessed previously and the confirmatory data evaluated in this application, is presented in Appendix B.
The evaluation report submitted by the RMS (United Kingdom, 2019) and the exposure calculations using the EFSA Pesticide Residues Intake Model (PRIMo) are considered as supporting documents to this reasoned opinion and, thus, are made publicly available as background documents to this reasoned opinion.
1. Mammalian toxicology
In the goat metabolism study assessed under the EU pesticides peer review, the metabolites L1, L4 and L9 were identified. The toxicological profile of these metabolites could not be assessed and therefore a data gap was set for the toxicological profile of these metabolites (EFSA, 2010). New studies to address the toxicity of metabolites L1, L4 and L9 were not provided for the MRL review either (EFSA, 2013) and consequently the data gap on toxicological relevance of these metabolites, affecting the MRL proposals for animal commodities, was implemented in Regulation (EU) 2015/1040 (data gap number 35). In order to address this data gap, an additional evaluation of these metabolites was provided in the context of the present MRL application (United Kingdom, 2019).
The genotoxicity potential of metabolites L1, L4 and L9 was assessed by using a range of (Q)SAR predication models and supported by structurally similarity to parent. Overall, it is concluded that for these metabolites, genotoxicity is unlikely based on (Q)SAR predictions which do not indicate any particular concern with respect to the parent.
Regarding general toxicity, further toxicological data were not submitted to assess whether these metabolites are of qualitatively or/and quantitatively similar toxicity in comparison with the parent compound azoxystrobin.
EFSA concludes that the data gap is only partially addressed. Considerations of the RMS and applicant on the relevance of these metabolites in the consumer exposure and justification of why the general toxicological profile of these metabolites was not assessed, are reported in Sections 3 (residue levels) and 4 (consumer dietary exposure) and discussed in Section 5.
2. Residues in plants
2.1. Nature of residues and methods of analysis in plants
Not relevant for the current assessment.
The previously derived residue definitions are still applicable (see Appendix B.2.1.1).
2.2. Magnitude of residues in plants
Lettuces and other salad plants: lamb's lettuce, lettuce, escarole, cress, land cresses, rocket/rucola, red mustard and leaves and sprouts of Brassica spp.
After the MRL review carried under article 12 of Regulation 396/2005, an MRL of 15 mg/kg was set on lamb's lettuce, lettuce, escarole, cress, land cresses, rocket/rucola, red mustard and leaves and sprouts of Brassica spp., on the basis of authorised indoor use. For all these commodities except lettuce, the MRL was set on a tentative basis because residue trials performed on open leaf varieties of lettuce were found to be missing in the northern outdoor,6 southern outdoor7 and indoor14 zones (EFSA, 2013).
In order to address the data gaps number 1 and 2, the applicant submitted adjusted GAPs on lamb's lettuce, lettuce, escarole, cress, land cresses, rocket/rucola, red mustard and leaves and sprouts of Brassica spp., and supporting trials for the indoor zone, the northern outdoor zone and the southern outdoor zone. The adjusted indoor GAP is like the authorised GAP assessed in the MRL review except that the interval between applications is now 7 days (instead of 14 days in the MRL review). The adjusted GAPs for northern and southern outdoor zones are less critical than the authorised GAPs assessed in the MRL review due to a lower number of applications. The data sets reported in the present opinion are combinations of old trials (submitted in previous MRL assessments) and new trials. An overview of all trials is available in Appendix B.2.2.1.
Authorised indoor GAP (MRL review, EFSA, 2013 ): 2 × 250 g a.s./ha; PHI 14 d (14 days interval)
Adjusted indoor GAP: 2 × 250 g a.s./ha; PHI 14 days (7 days interval)
In order to address the data gap number 2, 12 trials performed with two applications at 250 g a.s./ha and a PHI 14 days were reported in the evaluation report (United Kingdom, 2019). Eight of these trials have been previously assessed in EFSA outputs (EFSA, 2012, 2013). It should be noted that four of these trials (2.2; 4.7; 4.3 and 6.2 mg/kg) which were previously considered as performed on closed leaf lettuce varieties (i.e. `cos` lettuce) (EFSA, 2012, 2013) are now considered to belong to open leaf lettuce varieties according to the extrapolation guidance document SANCO 7525/VI/95 Rev. 10.3 (Table 4) (European Commission, 2017). Therefore, these eight trials can be considered representative of open leaf varieties of lettuce. Two of these trials were performed with an interval between application of 7 days, whereas the remaining six trials had an interval of 14 days. In addition, the applicant submitted four new trials on lettuce, which were performed on open leaf varieties of lettuce (namely Charles, Batavia and Kinshasa) and are fully compliant with the adjusted GAP. Consequently, a total of six trials fully compliant with the adjusted GAP (7 days interval) and six trials compliant with the authorised GAP (14 days interval), all conducted on open leaf lettuce varieties, are available. Based on the residue decline studies, a significant decrease of residue concentrations is generally observed 21 days after application. Therefore, the interval between applications (7 or 14 days) is not expected to have an impact on the final residue concentration when the harvest is done 14 days after the last application. This is confirmed by a comparison of the six results obtained with the interval 7 days vs. interval 14 days. A statistical comparison performed with the U‐test (Mann–Whitney) does not indicate significant difference between the two data sets. Consequently, it is concluded that the 12 indoor trials can be merged to derive an MRL based on the adjusted indoor GAPs. Further residues trials supporting the indoor GAP are not required.
Authorised NEU GAP (MRL review, EFSA, 2013 ): 4 × 250 g a.s./ha; PHI 14 days (7 days interval)
Adjusted Northern outdoor GAP: 2 × 250 g a.s./ha; PHI 14 days (7 days interval)
In order to address the data gap number 1, no new information/data were submitted in support of the authorised GAP. Instead, the applicant reported nine trials on lettuce compliant with the adjusted GAP. Eight of these trials are the same as the ones previously assessed in the EFSA opinion on MRL setting: six trials performed on open leaf varieties and two trials performed on close leaf varieties (EFSA, 2012). In addition, one new northern trial was submitted in the present dossier. This trial was performed on open leaf varieties of lettuce (namely Frisee).
Consequently, a total of nine trials compliant with the adjusted GAP, seven of them conducted on open leaf varieties and two on close leaf varieties, are available.
Authorised SEU GAP (MRL review, EFSA, 2013 ): 3 × 250 g a.s./ha; PHI 7 d (7 d interval)
Adjusted Southern outdoor GAP: 2 × 250 g a.s./ha; PHI 7 days (7 days interval)
In order to address the data gap number 2, no new data were submitted in support of the authorised GAP. Instead, 11 trials compliant with the adjusted GAP were reported in the evaluation report. Eight of these trials have been previously assessed in the EFSA opinion on MRL setting: four trials performed on open leaf varieties and four trials performed on close leaf varieties (EFSA, 2012). In addition, three new southern trials were submitted in the framework of the current assessment. These trials were performed on open leaf varieties of lettuce (namely Canasta and Cervantes).
Consequently, a total of 11 trials compliant with the adjusted GAP, seven of them conducted on open leaf varieties and four on close leaf varieties, is available.
Discussion and conclusion:
Based on the adjusted indoor GAP and its supporting data set (12 trials on open leaf varieties), a robust MRL of 10 mg/kg can be derived for lettuce (see details in Appendix B.2.2.1). According to the extrapolation guidance document SANCO 7525/VI/95 Rev. 10.3 (Table 4) (European Commission, 2017), these results can be extrapolated to lamb's lettuce, escarole, cress, land cresses, rocket/rucola, red mustard and leaves and sprouts of Brassica spp. in support of the adjusted indoor GAPs on these crops.
Based on the northern data set (nine trials) and southern data set (11 trials), MRLs of 1 mg/kg and 5 mg/kg, respectively, would be derived for lettuce (see details in Appendix B.2.2.1). For these GAPs, a minor deficiency is to be noted: only seven trials were performed on open leaf varieties while the guidance document on extrapolation requires eight trials on open leaf varieties to allow extrapolation from lettuce trials to all crops belonging to the group of lettuce and other salad plants (crop group code 251000). However, considering that the northern outdoor GAPs and the southern outdoor GAPs result in significantly lower MRLs compared to the indoor GAP, one additional trial on open leaf varieties in NEU and one additional trial on open leaf varieties in SEU are not required.
EFSA notes that the MRL proposal of 10 mg/kg as derived in support of the adjusted indoor GAP for lamb's lettuce, lettuce, escarole, cress, land cresses, rocket/rucola, red mustard and leaves and sprouts of Brassica spp. is lower than the existing EU MRL of 15 mg/kg. A risk management decision is required for the lowering of MRL for azoxystrobin in lettuces and other salad plants. It is concluded that the data gaps number 1 and 2 identified in the framework of the MRL review are addressed.
3. Residues in livestock
In the framework of the MRL review, EFSA identified data gaps related to the toxicological relevance of metabolites L1, L4 and L9, which were identified in ruminant liver and kidney (data gap number 35). In order to address this data gap, the applicant provided, in the framework of the current assessment, information that allowed to conclude that the genotoxic potential of these three compounds can be ruled out (see Section 1). However, the applicant did not provide data on the general toxicity of these metabolites. Instead, calculations were provided to demonstrate that the expected dietary exposure of consumers to these metabolites (from the intake of liver and kidney) is low and would therefore not be of toxicological concern.
EFSA assessed whether the newly submitted information may change the conclusion of the previous assessment (EFSA, 2013) as regards the toxicological relevance of metabolites L1, L4 and L9 and the tentative risk assessment residue definition in animal commodities. First, EFSA recalculated the livestock exposure according to the OECD methodology (OECD, 2013), considering all crops on which the use of azoxystrobin is authorised, including also those commodities on which the uses of azoxystrobin were assessed since the MRL review, namely linseed and safflower (EFSA, 2016b). The input values used to perform this calculation are reported in Annex D.1. and the outcome of the calculations is reported in Appendix B.3. Secondly, EFSA assessed the calculations of the RMS regarding the respective residue levels of metabolites L1, L4 and L9 in animal tissues (see Section 3.3.2). Finally, EFSA assessed the calculations of the RMS regarding the human dietary exposure to metabolites L1, L4 and L9 (see Section 4.2).
As lettuces and other salad plants are not used as a livestock feed, the new data provided on the magnitude of azoxystrobin residues in lettuce and other salad plants did not impact this assessment.
3.1. Nature of residues
No new data.
The previously derived residue definition for monitoring is still applicable (see Appendix B.2.1).
The RMS proposed to confirm the residue definition for risk assessment in animal commodities which was tentatively set as azoxystrobin, pending information on the toxicological profile of metabolites L1, L4 and L9. This is discussed in Section 5.
3.2. Methods of analysis in livestock
No new data.
3.3. Magnitude of residues in livestock
3.3.1. Azoxystrobin
As lettuces and other salad plants are not used as a livestock feed, the new data provided on the magnitude of azoxystrobin residues in lettuce and other salad plants did not impact on the azoxystrobin levels in livestock commodities.
EFSA reminds that the EU livestock dietary burden calculated in the MRL review resulted in the MRL values at the limit of quantification (LOQ) in all animal matrices (EFSA, 2013). However, the MRL review also assessed existing CXLs for animal commodities, which were set at higher levels (also based on the EU dietary burden (FAO, 2008, 2011)). Consequently, the MRL review proposed to take these CXLs over in the EU legislation, noting the general data gap on the toxicological relevance of livestock metabolites L1, L4 and L9.
The EU MRLs which are derived from CXLs (e.g. mammalian liver, kidney, edible offal (0.07 mg/kg) and fat (0.05 mg/kg)) reflect a significantly higher livestock dietary burden (72 mg/kg DM) compared to the EU livestock dietary burden calculated in the current assessment. EFSA is not in position to reassess these calculations of the JMPR but notes that considering the EU livestock dietary burden calculated in the current assessment (see Appendix B.3), lower MRLs would be sufficient to accommodate the existing EU uses of azoxystrobin (see Appendix B.3.2).
3.3.2. Metabolites L1, L4 and L9
The data from livestock metabolism studies were used by the RMS to assess the magnitude of metabolites L1, L4 and L9 in livestock matrices at the EU dietary burdens (i.e. calculated for the existing EU uses of azoxystrobin). The concentrations of metabolites L1, L4 and L9 observed in liver and kidney from the goat metabolism study (25 mg/kg diet) and scaled to the 1N dose (considering updated EU dietary burden in respective animal categories) are reported in Table 1. Metabolite K1 is the glucuronide conjugate of L1 and it is therefore also considered in this assessment.
Table 1.
Estimated TRR levels (mg eq/kg) of metabolites L1, L4, L9 and K1 in livestock kidney and liver at the calculated maximum EU dietary burdens
| Highest TRR observed | Expected TRR in 1N, based on MAX dietary burden (DB) (mg eq/kg) | |||||||
|---|---|---|---|---|---|---|---|---|
| Metabolism study performed on goat at 25 mg/kg diet | Cattle MAX DB: 15.35 mg/kg DM | Sheep MAX DB: 5.79 mg/kg DM | Swine MAX DB: 10.60 mg/kg DM | |||||
| Metabolite | Liver | Kidney | Liver | Kidney | Liver | Kidney | Liver | Kidney |
| L1 | 0.03 | 0.009 | 0.018 | 0.006 | 0.007 | 0.002 | 0.013 | 0.004 |
| L4 | 0.35 | ND | 0.215 | – | 0.081 | – | 0.148 | – |
| L9 | 0.01 | ND | 0.006 | – | 0.002 | – | 0.004 | – |
| K1 | 0.01 | 0.03 | 0.006 | 0.018 | 0.002 | 0.007 | 0.004 | 0.013 |
ND: not detected.
The maximum calculated residue levels for metabolites L1, L4, L9 and K1 in animal tissues are 0.018 mg eq/kg (cattle liver), 0.215 mg eq/kg (cattle liver) and 0.006 mg eq/kg (cattle liver) and 0.018 mg eq/kg (cattle kidney), respectively. These levels are associated with the maximum EU dietary burden of cattle calculated in the present opinion (15.35 mg/kg DM).
The current EU MRLs for livestock commodities come from the CXLs which were derived on the basis of a significantly higher dietary burden for cattle (i.e. 72 mg/kg DM for dairy cattle; FAO, 2008, 2011). For the dietary burden of 72 mg/kg DM, the calculated levels for metabolites L1, L4, L9 and K1 in cattle liver and kidney would be multiplied by a factor of 5 (indicative ratio based on the dietary burdens8).
4. Consumer risk assessment
4.1. Consumer risk assessment for azoxystrobin
Although the additional data submitted in the present application are not expected to have a major impact on the dietary exposure of consumers, an updated consumer risk assessment was performed by EFSA considering:
As residue definition for risk assessment for plant and animal products: azoxystrobin.
All input values previously considered for the consumer risk assessment of azoxystrobin (last update in EFSA, 2016b).
The risk assessment values for lettuce and other salad plants calculated in this opinion.
The CXLs and associated risk assessment values for prickly pears/cactus fruits and sugar cane (FAO, 2017), recently implemented in the EU legislation by Regulation (EU) No 2019/552.
The last version of PRIMo (Rev3.1).
The toxicological profile of azoxystrobin was assessed in the framework of the EU pesticides peer review and the data were sufficient to derive a toxicological reference value for acceptable daily intake (ADI) of 0.2 mg/kg per day. The derivation of an acute reference dose (ARfD) was considered not necessary (EFSA, 2010).
The input values used to perform this calculation are reported in Annex D.2. The estimated chronic exposures were compared with the ADI of azoxystrobin. The outcome of the calculations is reported in Appendix B.4.
The highest calculated chronic intake accounted for 19% of the ADI (DE child diet). The short‐term (acute) exposure is not relevant since no ARfD has been considered necessary for azoxystrobin. The confirmatory data assessed in this opinion do not increase the current consumer exposure to azoxystrobin, which is unlikely to pose a concern for public health.
4.2. Indicative exposure to metabolites L1, L4, L9 and K1 (conjugate of L1) (as a sum)
The general toxicity of the metabolites identified in livestock metabolism studies (i.e. L1, L4, L9 and K1 (conjugate of L1)) has not been assessed (see Section 1). However, the RMS performed a dietary exposure assessment for these compounds. The exposure was expressed as μg/kg body weight (bw) day for long‐term exposure and μg/kg bw for short‐term exposure. These metabolites were only found in ruminant liver and kidney; thus, the RMS calculated the exposure based on the occurrence of these compounds in liver and kidney of each animal category. The input values considered by the RMS for the consumer exposure calculation were expressed as the sum of metabolites L1, L4, L9 and K1. The levels were as calculated at 1N rate of the EU dietary burden and corrected using the respective molecular weights of these compounds. The RMS performed the exposure calculations using PRIMo rev.2. The maximum chronic exposure calculated by the RMS was 0.053 μg/kg bw per day; the maximum acute intake of 1.86 μg/kg bw (bovine liver) (United Kingdom, 2019).
EFSA performed a similar calculation considering the residue concentrations of L1, L4, L9 and K1 at the updated EU dietary burden (see Section 3.3.2) and using PRIMo rev.3.1. The input values for the exposure calculation are presented in Appendix D.3. This resulted in a maximum chronic intake of 0.042 μg/kg bw per day and maximum acute intake of 1.3 μg/kg bw (bovine liver). The intake calculated by EFSA is slightly lower but in the same order of magnitude as the one calculated by the RMS.
The RMS compared the exposure calculated for metabolites L1, L4, L9 and K1 (conjugate of L1)) to the toxicological threshold of concern (TTC) for Cramer Class III (United Kingdom, 2019). However, the TTC approach as proposed in the EFSA PPR Guidance on the Residue Definition for risk assessment (EFSA PPR Panel, 2016) has not been endorsed by the Commission and the Member States. Therefore, the TTC approach cannot be applied in this context. Consequently, lacking toxicological information required to derive an ADI/ARfD, a definitive conclusion on the risk for consumers exposed to L1, L4 and L9 via intake of animal products cannot be derived by EFSA.
Furthermore, the exposure calculations proposed by the RMS (and updated by EFSA) are affected by a non‐standard uncertainty because occurrence data in livestock tissues are based on the goat metabolism study (only one study result) instead of feeding studies. The consumer exposure calculations reflect the intake of metabolites as estimated in liver and kidney for the maximum EU dietary burden as calculated in the current assessment (i.e. max 15 mg/kg DM). This dietary burden, as noted before, would lead to azoxystrobin MRLs at the LOQ in all livestock commodities (see Appendix B.3.2).
The existing EU MRLs for azoxystrobin in mammalian liver and kidney are set at the levels above the LOQ and are based on the Codex MRLs (CXLs), for which the maximum dietary burden in cattle was much higher (72 mg/kg DM) than the one calculated in the present opinion (15 mg/kg DM). Therefore, the above calculations do not reflect the consumer exposure to metabolites L1, L4 and L9 if mammalian kidney and liver contain residues of azoxystrobin at the levels of existing EU MRLs (CXLs).
EFSA considers that the results of the above scenario (based on EU dietary burden) are underestimated by a factor of 5 compared to a scenario associated with residues resulting from the existing EU MRLs. Consequently, the argument of the applicant and the RMS to consider low consumer exposure as a reason for waiving the assessment of general toxicity of metabolites L1, L4 and L9 is not fully valid if consumers are exposed to azoxystrobin residues in animal commodities at the levels of existing EU MRLs.
5. Conclusion and Recommendations
To address data gaps identified in the framework of the MRL review (EFSA, 2013), the applicant has submitted the following data/information:
Residue trials performed on open leaf varieties of lettuce supporting indoor, northern and southern adjusted GAPs.
An assessment of the genotoxicity of the livestock metabolites L1, L4 and L9.
New calculations on the occurrence of livestock metabolites L1, L4 and L9 in livestock tissues and argumentation on their relevance in the consumer dietary exposure.
Regarding the magnitude of residues in lettuce and other salad plants, the data gaps identified in the framework of the MRL review were addressed. The applicant reported adjusted indoor, NEU and SEU GAPs and supporting residue trials on lettuce. The new data allow to derive a lower MRL of 10 mg/kg for lamb's lettuce, lettuce, escarole, cress, land cresses, rocket/rucola, red mustard and leaves and sprouts of Brassica spp. in support of the adjusted critical indoor GAP. A risk management decision is needed for the lowering of MRL for azoxystrobin in lettuces and other salad plants.
Regarding the toxicological assessment of livestock metabolites L1, L4 and L9, the submitted data allowed to conclude that the genotoxic potential of these three compounds can be ruled out. However, data addressing the general toxicity of these compounds were not provided. Based on calculations to demonstrate that the expected dietary exposure of consumers to these metabolites was lower than the TTC, the RMS concluded that further data addressing the general toxicity of these compounds were not needed and thus proposed to confirm the residue definition for risk assessment in animal commodities as azoxystrobin alone. EFSA highlighted that the TTC approach cannot be applied in this context. EFSA concludes that the data gap identified in the framework of the MRL review was only partially addressed. Further risk management considerations should be given to decide whether the argument of the low exposure calculated for metabolites L1, L4, L9 and K1 (conjugate of L1) is acceptable to waive the need to submit data on the general toxicity of L1, L4 and L9. Meanwhile, the residue definition for risk assessment in animal commodities is still deemed tentative.
Furthermore, EFSA highlighted the following points for risk managers considerations:
The current MRLs in mammalian liver, kidney, edible offal and fat are based on CXLs, which were derived from higher livestock dietary burden compared to the EU scenario assessed in the present opinion (e.g. five times higher for the cattle dietary burden). Therefore, the low exposures calculated by the RMS for metabolites L1, L4, L9 and K1, which account only for EU dietary burden calculated under current assessment, do not cover the existing EU MRLs for livestock commodities.
The calculations on the occurrence of metabolites L1, L4, L9 and K1 (conjugate of L1) in animal products were based on the EU dietary burden assessed in this opinion. Therefore, the low exposure calculated by the RMS should be associated with azoxystrobin MRLs at the LOQs for all animal commodities. Consequently, if risk managers consider the exposure calculated by the RMS as a relevant argument to address the data gap on general toxicity for those metabolites, MRLs for animal commodities would need to be updated accordingly (i.e. lowered to LOQ).
The overview of the assessment of confirmatory data and the recommended MRL modifications are summarised in Appendix B.5.
Abbreviations
- a.s.
active substance
- ADI
acceptable daily intake
- ARfD
acute reference dose
- BBCH
growth stages of mono‐ and dicotyledonous plants
- bw
body weight
- CAS
Chemical Abstract Service
- CF
conversion factor for enforcement to risk assessment residue definition
- CIRCA
(EU) Communication & Information Resource Centre Administrator
- CS
capsule suspension
- CV
coefficient of variation (relative standard deviation)
- CXL
Codex maximum residue limit
- DAR
draft assessment report
- DAT
days after treatment
- DM
dry matter
- DS
powder for dry seed treatment
- EC
emulsifiable concentrate
- EDI
estimated daily intake
- Eq
residue expressed as a.s. equivalent
- FAO
Food and Agriculture Organization of the United Nations
- FID
flame ionisation detector
- GAP
Good Agricultural Practice
- GC
gas chromatography
- GC‐FID
gas chromatography with flame ionisation detector
- GC‐MS
gas chromatography with mass spectrometry
- GC‐MS/MS
gas chromatography with tandem mass spectrometry
- GC‐NPD
gas chromatography with nitrogen/phosphorous detector
- GS
growth stage
- HPLC‐MS/MS
high‐performance liquid chromatography with tandem mass spectrometry
- HR
highest residue
- IEDI
international estimated daily intake
- ILV
independent laboratory validation
- ISO
International Organisation for Standardisation
- IUPAC
International Union of Pure and Applied Chemistry
- JMPR
Joint FAO/WHO Meeting on Pesticide Residues
- LC
liquid chromatography
- LOQ
limit of quantification
- MRL
maximum residue level
- MS
Member States
- MS
mass spectrometry detector
- MS/MS
tandem mass spectrometry detector
- MW
molecular weight
- NEU
northern Europe
- NPD
nitrogen/phosphorous detector
- OECD
Organisation for Economic Co‐operation and Development
- PBI
plant back interval
- PF
processing factor
- PHI
pre‐harvest interval
- PRIMo
(EFSA) Pesticide Residues Intake Model
- RA
risk assessment
- RD
residue definition
- RMS
rapporteur Member State
- SANCO
Directorate‐General for Health and Consumers
- SC
suspension concentrate
- SEU
southern Europe
- SL
soluble concentrate
- SP
water‐soluble powder
- STMR
supervised trials median residue
- TAR
total applied radioactivity
- TRR
total radioactive residue
- TTC
toxicological threshold of concern
- UV
ultraviolet (detector)
- WHO
World Health Organization
Appendix A – Summary of GAPs assessed in the evaluation of confirmatory data
1.
| Crop and/or situation | NEU, SEU, MS or country | F, G or Ia | Pests or group of pests controlled | Preparation | Application | Application rate per treatment | PHI (days)d | Remarks | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Typeb | Conc. a.s. | Method kind | Range of growth stages & seasonc |
Number min–max |
Interval between application (min) |
g a.s./hL min–max |
Water L/ha min–max |
Rate | Unit | ||||||
| Authorised indoor GAP (MRL review, EFSA, 2013 ) | |||||||||||||||
| Lettuces and salad plants | FR | I | Fungal diseases | SC | 250 g/L | Foliar treatment –spraying | Max 49 | 2 | 14 | – | – | 250 | g a.i./ha | 14 | All crops belonging to code Number: 0251000 |
| Adjusted indoor GAPs (United Kingdom, 2019 ) | |||||||||||||||
| Lamb's lettuce/corn salads | BE | I | Bremia lactucae, Rhizoctonia solani, Erysiphe cichoracearum, Cercospora sp. | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 14 | This GAP is also valid for Ireland, Luxemburg, Slovenia, United Kingdom and France |
| Lettuces | BE | I | Bremia lactucae, Rhizoctonia solani, Erysiphe cichoracearum, Cercospora sp. | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 14 | Same remark |
| Escaroles/broad‐leaved endives | BE | I | Bremia lactucae, Rhizoctonia solani, Erysiphe cichoracearum, Cercospora sp. | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 14 | Same remark |
| Cress and other sprouts and shoots | BE | I | Bremia lactucae, Rhizoctonia solani, Erysiphe cichoracearum, Cercospora sp. | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 14 | Same remark |
| Land cress | BE | I | Bremia lactucae, Rhizoctonia solani, Erysiphe cichoracearum, Cercospora sp. | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 14 | Same remark |
| Roman rocket/rucola | BE | I | Bremia lactucae, Rhizoctonia solani, Erysiphe cichoracearum, Cercospora sp. | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 14 | Same remark |
| Red mustards | BE | I | Bremia lactucae, Rhizoctonia solani, Erysiphe cichoracearum, Cercospora sp. | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 14 | Same remark |
| Baby leaf crops (including brassica species) | BE | I | Bremia lactucae, Rhizoctonia solani, Erysiphe cichoracearum, Cercospora sp. | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 14 | Same remark |
| Authorised NEU GAP (MRL review, EFSA, 2013 ) | |||||||||||||||
| Lamb's lettuce/corn salads | NEU | F | Fungal diseases | UK, SE | 250 g/L | Foliar treatment –spraying | 4 | 250 | g a.i./ha | 14 | |||||
| Lettuces | NEU | F | Fungal diseases | UK, SE, BE, NL | 250 g/L | Foliar treatment –spraying | 4 | 250 | g a.i./ha | 14 | |||||
| Escaroles/broad‐leaved endives | NEU | F | Fungal diseases | UK, SE | 250 g/L | Foliar treatment –spraying | 4 | 250 | g a.i./ha | 14 | |||||
| Cress and other sprouts and shoots | NEU | F | Fungal diseases | UK, SE | 250 g/L | Foliar treatment –spraying | 4 | 250 | g a.i./ha | 14 | |||||
| Land cress | NEU | F | Fungal diseases | FR | 250 g/L | Foliar treatment –spraying | Max 49 | 2 | 7 | 250 | g a.i./ha | 14 | |||
| Roman rocket/rucola | NEU | F | Fungal diseases | UK, SE | 250 g/L | Foliar treatment –spraying | 4 | 250 | g a.i./ha | 14 | |||||
| Red mustards | NEU | F | Fungal diseases | UK, SE | 250 g/L | Foliar treatment –spraying | 4 | 250 | g a.i./ha | 14 | |||||
| Baby leaf crops (including brassica species) | NEU | F | Fungal diseases | UK, SE | 250 g/L | Foliar treatment –spraying | 4 | 250 | g a.i./ha | 14 | |||||
| Adjusted NEU GAPs (United Kingdom, 2019 ) | |||||||||||||||
| Lamb's lettuce/corn salads | NEU | F | Bremia lactucae, Rhizoctonia solani | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 14 | This GAP is valid for Denmark, Finland, Sweden, Austria, Belgium, Czech Republic, Germany, Hungary, Ireland, Luxemburg, Netherlands, Poland and United Kingdom. |
| Lettuces | NEU | F | Bremia lactucae, Rhizoctonia solani | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 14 | Same remark |
| Escaroles/broad‐leaved endives | NEU | F | Bremia lactucae, Rhizoctonia solani | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 14 | Same remark |
| Cress and other sprouts and shoots | NEU | F | Bremia lactucae, Rhizoctonia solani | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 14 | Same remark |
| Land cress | NEU | F | Bremia lactucae, Rhizoctonia solani | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 14 | Same remark |
| Roman rocket/rucola | NEU | F | Bremia lactucae, Rhizoctonia solani | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 14 | Same remark |
| Red mustards | NEU | F | Bremia lactucae, Rhizoctonia solani | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 14 | Same remark |
| Baby leaf crops (including brassica species) | NEU | F | Bremia lactucae, Rhizoctonia solani | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 14 | Same remark |
| Authorised SEU GAP (MRL review, EFSA, 2013 ) | |||||||||||||||
| Lamb's lettuce/corn salads | SEU | F | Fungal diseases | FR, IT | 250 g/L | Foliar treatment –spraying | Max 49 | 3 | 7 | 250 | g a.i./ha | 7 | |||
| Lettuces | SEU | F | Fungal diseases | PT, IT | 250 g/L | Foliar treatment –spraying | Max 49 | 3 | 7 | 250 | g a.i./ha | 7 | |||
| Escaroles/broad‐leaved endives | SEU | F | Fungal diseases | IT | 250 g/L | Foliar treatment –spraying | Max 49 | 3 | 7 | 250 | g a.i./ha | 7 | |||
| Cress and other sprouts and shoots | SEU | F | Fungal diseases | PT, IT | 250 g/L | Foliar treatment –spraying | Max 49 | 3 | 7 | 250 | g a.i./ha | 7 | |||
| Land cress | SEU | F | Fungal diseases | FR, IT | 250 g/L | Foliar treatment –spraying | Max 49 | 3 | 7 | 250 | g a.i./ha | 7 | |||
| Roman rocket/rucola | SEU | F | Fungal diseases | FR, IT | 250 g/L | Foliar treatment –spraying | Max 49 | 3 | 7 | 250 | g a.i./ha | 7 | |||
| Red mustards | SEU | F | Fungal diseases | FR, IT | 250 g/L | Foliar treatment –spraying | Max 49 | 3 | 7 | 250 | g a.i./ha | 7 | |||
| Baby leaf crops (including brassica species) | SEU | F | Fungal diseases | IT | 250 g/L | Foliar treatment –spraying | Max 49 | 3 | 7 | 250 | g a.i./ha | 7 | |||
| Adjusted SEU GAPs (United Kingdom, 2019 ) | |||||||||||||||
| Lamb's lettuce/corn salads | SEU | F | Bremia lactucae, Rhizoctonia solani, Erysiphe cichoracearum, Cercospora sp. | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 7 | This GAP is valid for Greece, Spain, France, Italy and Portugal |
| Lettuces | SEU | F | Bremia lactucae, Rhizoctonia solani, Erysiphe cichoracearum, Cercospora sp. | SC | 250 g/L | Foliar treatment – broadcast spraying | 14‐49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 7 | This GAP is valid for Greece, Spain, France, Italy and Portugal |
| Escaroles/broad‐leaved endives | SEU | F | Bremia lactucae, Rhizoctonia solani, Erysiphe cichoracearum, Cercospora sp. | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 7 | This GAP is valid for Greece, Spain, France, Italy and Portugal |
| Cress and other sprouts and shoots | SEU | F | Bremia lactucae, Rhizoctonia solani, Erysiphe cichoracearum, Cercospora sp. | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 7 | This GAP is valid for Greece, Spain, France, Italy and Portugal |
| Land cress | SEU | F | Bremia lactucae, Rhizoctonia solani, Erysiphe cichoracearum, Cercospora sp. | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 7 | This GAP is valid for Greece, Spain, France, Italy and Portugal |
| Roman rocket/rucola | SEU | F | Bremia lactucae, Rhizoctonia solani, Erysiphe cichoracearum, Cercospora sp. | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 7 | This GAP is valid for Greece, Spain, France, Italy and Portugal |
| Red mustards | SEU | F | Bremia lactucae, Rhizoctonia solani, Erysiphe cichoracearum, Cercospora sp. | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 7 | This GAP is valid for Greece, Spain, France, Italy and Portugal |
| Baby leaf crops (including brassica species | SEU | F | Bremia lactucae, Rhizoctonia solani, Erysiphe cichoracearum, Cercospora sp. | SC | 250 g/L | Foliar treatment – broadcast spraying | 14–49 | 2 | 7 | – | 300–1,200 | 250 | g a.i./ha | 7 | This GAP is valid for Greece, Spain, France, Italy and Portugal |
MRL: maximum residue level; GAP: Good Agricultural Practice; NEU: northern European Union; SEU: southern European Union; MS: Member State; a.s.: active substance; SC: suspension concentrate.
Outdoor or field use (F), greenhouse application (G) or indoor application (I).
CropLife International Technical Monograph no 2, 7th Edition. Revised March 2017. Catalogue of pesticide formulation types and international coding system.
Growth stage range from first to last treatment (BBCH Monograph, Growth Stages of Plants, 1997, Blackwell, ISBN 3‐8263‐3152‐4), including, where relevant, information on season at time of application.
PHI: minimum preharvest interval.
Appendix B – List of end points
B.1. Mammalian toxicology
Other toxicological studies
B.2. Residues in plants
B.2.1. Nature of residues and methods of analysis in plants
B.2.1.1. Metabolism studies, methods of analysis and residue definitions in plants
| Primary crops (available studies) | Crop groups | Crop(s) | Application(s) | Sampling (DAT) | Comment/Source |
|---|---|---|---|---|---|
| Fruit crops | Grape | Foliar: 250 + 1,000 + 1,000 + 250 g/ha | 21 |
14C‐pyrimidinyl 14C‐cyanophenyl 14C‐phenylacrylate |
|
| Cereals/grass | Wheat | Foliar: 2 × 500 g/ha; BBCH 30–31 and 59–61 |
Forage: 13 Grain and straw: 61–62 |
14C‐pyrimidinyl 14C‐cyanophenyl 14C‐phenylacrylate |
|
| Foliar: 1× unknown; BBCH 71 | 28 | 14C‐pyrimidinyl | |||
| Pulses/oilseeds | Peanut | Foliar: 850 + 850 + 300 g/ha | 10 |
14C‐pyrimidinyl 14C‐cyanophenyl 14C‐phenylacrylate |
| Rotational crops (available studies) | Crop groups | Crop(s) | Application(s) | PBI (DAT) | Comment/Source |
|---|---|---|---|---|---|
| Root/tuber crops | Radish | Bare soil: 2.2 kg/ha | 30, 200, 365 |
14C‐pyrimidinyl 14C‐cyanophenyl 14C‐phenylacrylate |
|
| Leafy crops | Lettuce | Bare soil: 2.2 kg/ha | 30, 200, 365 |
14C‐pyrimidinyl 14C‐cyanophenyl 14C‐phenylacrylate |
|
| Cereal (small grain) | Wheat | Bare soil: 2.2 kg/ha | 30, 200, 365 |
14C‐pyrimidinyl 14C‐cyanophenyl 14C‐phenylacrylate |
B.2.1.2. Stability of residues in plants
| Plant products (available studies) | Category | Commodity | T (°C) | Stability period | Compounds covered | Comment/Source | |
|---|---|---|---|---|---|---|---|
| Value | Unit | ||||||
| High water content | Banana | –18 | 24 | Months | Azoxystrobin | United Kingdom (2009) | |
| Peach | –18 | 24 | Months | Azoxystrobin | United Kingdom (2009) | ||
| Tomato | –18 | 24 | Months | Azoxystrobin | United Kingdom (2009) | ||
| Cucumber | –18 | 24 | Months | Azoxystrobin | United Kingdom (2009) | ||
| Lettuce | –18 | 24 | Months | Azoxystrobin | United Kingdom (2009) | ||
| Carrot | –18 | 24 | Months | Azoxystrobin | United Kingdom (2009) | ||
| High oil content | Oilseed rape | –18 | 24 | Months | Azoxystrobin | United Kingdom (2009) | |
| Pecans | –18 | 24 | Months | Azoxystrobin | United Kingdom (2009) | ||
| Peanut | –18 | 24 | Months | Azoxystrobin | United Kingdom (2009) | ||
| Dry/High starch | Cereal grain | –18 | 24 | Months | Azoxystrobin | United Kingdom (2009) | |
| High acid content | Grape | –18 | 24 | Months | Azoxystrobin | United Kingdom (2009) | |
| Apple | –18 | 24 | Months | Azoxystrobin | United Kingdom (2009) | ||
| Orange | –18 | 24 | Months | Azoxystrobin | United Kingdom (2009) | ||
| Others | Straw | –18 | 24 | Months | Azoxystrobin | United Kingdom (2009) | |
B.2.2. Magnitude of residues in plants
B.2.2.1. Summary of residues data from the supervised residue trials
| Commodity | Region/Indoora | Residue levels observed in the supervised residue trials (mg/kg) | Comments/Source | Calculated MRL (mg/kg) | HRb (mg/kg) | STMRc (mg/kg) |
|---|---|---|---|---|---|---|
| Lamb's lettuce, lettuce, escarole, cress, Land Cresses, rocket/rucola, red mustard and leaves and sprouts of Brassica spp. | NEU | < 0.01d; < 0.01d; 0.03; 0.13; 0.17; 0.22; 0.24; 0.46; 0.49 |
Residue trials on lettuce compliant with adjusted GAP. Extrapolation to other salad plants (crop group code 251000) is possible MRLOECD: 0.92 |
1 | 0.49 | 0.17 |
| SEU | 0.07d; 0.09; 0.20; 0.29; 0.31d; 0.43; 1.1; 1.4d; 1.9d; 2.1; 2.1 |
Residue trials on lettuce compliant with adjusted GAP. Extrapolation to other salad plants (crop group code 251000) is possible MRLOECD: 4.24 |
5 | 2.1 | 0.43 | |
| Indoor |
Trials fully compliant with the adjusted GAP: 0.45; 0.59; 2.6; 2.9; 3.2; 4.8 Trials compliant with adjusted GAP (except interval between applications of 14 days instead of 7 days): 2.2; 3.5; 4.3; 4.4; 4.7; 6.2 |
Residue trials on lettuce all performed on open leaf varieties. Extrapolation to other salad plants (crop group code 251000) is possible MRLOECD: 10.16 |
10 | 6.2 | 3.4 |
MRL: maximum residue level; GAP: Good Agricultural Practice.
NEU: Outdoor trials conducted in northern Europe, SEU: Outdoor trials conducted in southern Europe, Indoor: indoor EU trials or Country code: if non‐EU trials.
Highest residue. The highest residue for risk assessment refers to the whole commodity and not to the edible portion.
Supervised trials median residue. The median residue for risk assessment refers to the whole commodity and not to the edible portion.
Residue trial performed on head forming varieties of lettuce. The other trials were performed on open leaf varieties.
B.2.2.2. Residues in rotational crops
B.2.2.3. Processing factors
No processing studies were submitted in the framework of the present MRL application.
B.3. Residues in livestock
EU Dietary burden assessed according to OECD GD (2013), using EFSA Animal Model.
| Relevant groups (subgroups) | Dietary burden expressed in | Most critical subgroupa | Most critical commodityb | Trigger exceeded (Y/N) | |||
|---|---|---|---|---|---|---|---|
| mg/kg bw per day | mg/kg DM | ||||||
| Median | Maximum | Median | Maximum | ||||
| Cattle (all) | 0.46 | 0.59 | 12.0 | 15.4 | Dairy cattle | Citrus, dried pulp | Y |
| Cattle (dairy only) | 0.46 | 0.59 | 12.0 | 15.4 | Dairy cattle | Citrus, dried pulp | Y |
| Sheep (all) | 0.10 | 0.23 | 2.85 | 5.79 | Lamb | Rye, straw | Y |
| Sheep (ewe only) | 0.10 | 0.19 | 2.85 | 5.79 | Ram/Ewe | Rye, straw | Y |
| Swine (all) | 0.20 | 0.25 | 8.76 | 10.6 | Swine (breeding) | Citrus, dried pulp | Y |
| Poultry (all) | 0.05 | 0.10 | 0.66 | 1.42 | Poultry layer | Wheat, straw | Y |
| Poultry (layer only) | 0.05 | 0.10 | 0.66 | 1.42 | Poultry layer | Wheat, straw | Y |
| Fish | n.a. | n.a. | n.a. | n.a. | n.a. | n.a. | n.a. |
bw: body weight; DM: dry matter; n.a.: not applicable.
When one group of livestock includes several subgroups (e.g. poultry ‘all’ including broiler, layer and turkey), the result of the most critical subgroup is identified from the maximum dietary burdens expressed as ‘mg/kg bw per day’.
The most critical commodity is the major contributor identified from the maximum dietary burden expressed as ‘mg/kg bw per day’.
B.3.1. Nature of residues and methods of analysis in livestock
B.3.1.1. Metabolism studies, methods of analysis and residue definitions in livestock
| Livestock (available studies) | Animal | Dose (mg/kg diet) | Duration (days) | Comment/Source |
|---|---|---|---|---|
| Laying hen | 11 | 10 | Studies performed on goat using 14C‐pyrimidinyl 14C‐cyanophenyl and 14C‐phenylacrylate radiolabels | |
| 12.5 | 10 | |||
| Lactating ruminants | 23.2–32.7 | 7 | Study performed on goat using 14C‐pyrimidinyl 14C‐cyanophenyl and 14C‐phenylacrylate radiolabels | |
| 25 | 7 | Study performed on goat using 14C‐cyanophenyl radiolabel |
B.3.1.2. Stability of residues in livestock
| Animal products (available studies) | Animal | Commodity | T (°C) | Stability period | Compounds covered | Comment/Source | |
|---|---|---|---|---|---|---|---|
| Value | Unit | ||||||
| Ruminant | Muscle | –18 | 10 | months | Azoxystrobin | United Kingdom (2009) | |
| Ruminant | Fat | –18 | 10 | months | Azoxystrobin | United Kingdom (2009) | |
| Ruminant | Liver | –18 | 10 | Months | Azoxystrobin | United Kingdom (2009) | |
| Ruminant | Kidney | –18 | 10 | Months | Azoxystrobin | United Kingdom (2009) | |
| Ruminant | Milk | –18 | 10 | Months | Azoxystrobin | United Kingdom (2009) | |
| Poultry | Eggs | –18 | 10 | Months | Azoxystrobin | United Kingdom (2009) | |
B.3.2. Magnitude of residues in livestock
MRL calculations based on the EU MRL dietary burdens calculated for azoxystrobin in the current assessment (refer to the table above).
| Animal commodity | Residues at the closest feeding level (mg/kg) | Estimated value at 1N | Calculated MRL (mg/kg) | ||
|---|---|---|---|---|---|
| Mean | Highest | STMRa (mg/kg) | HRb (mg/kg) | ||
| Cattle (all) – Closest feeding level (0.91 mg/kg bw; 1.5 N rate)c | |||||
| Muscle | < 0.01 | < 0.01 | < 0.01 | < 0.01 | 0.01* |
| Fat | < 0.01 | < 0.01 | < 0.01 | < 0.01 | 0.01* |
| Liver | 0.01 | 0.01 | < 0.01 | < 0.01 | 0.01* f |
| Kidney | < 0.01 | < 0.01 | < 0.01 | < 0.01 | 0.01* f |
| Cattle (dairy only) – Closest feeding level (0.91 mg/kg bw; 1.5 N rate)c | |||||
| Milkd | < 0.01 | n.a. | < 0.01 | < 0.01 | 0.01* |
| Sheep (all) e – Closest feeding level (0.18 mg/kg bw; 0.8 N rate)c | |||||
| Muscle | < 0.01 | < 0.01 | < 0.01 | < 0.01 | 0.01* |
| Fat | < 0.01 | < 0.01 | < 0.01 | < 0.01 | 0.01* |
| Liver | < 0.01 | < 0.01 | < 0.01 | < 0.01 | 0.01* f |
| Kidney | < 0.01 | < 0.01 | < 0.01 | < 0.01 | 0.01* f |
| Sheep (ewe only) e – Closest feeding level (0.18 mg/kg bw; 0.9 N rate)c | |||||
| Milkd | < 0.01 | n.a. | < 0.01 | < 0.01 | 0.01* |
| Swine (all) e – Closest feeding level (0.18 mg/kg bw; 0.7 N rate)c | |||||
| Muscle | < 0.01 | < 0.01 | < 0.01 | < 0.01 | 0.01* |
| Fat | < 0.01 | < 0.01 | < 0.01 | < 0.01 | 0.01* |
| Liver | < 0.01 | < 0.01 | < 0.01 | < 0.01 | 0.01* f |
| Kidney | < 0.01 | < 0.01 | < 0.01 | < 0.01 | 0.01* f |
| Poultry (all) – Closest feeding level (0.39 mg/kg bw; 4 N rate)c | |||||
| Muscle | < 0.01 | < 0.01 | < 0.01 | < 0.01 | 0.01* |
| Fat | < 0.01 | < 0.01 | < 0.01 | < 0.01 | 0.01* |
| Liver | < 0.01 | < 0.01 | < 0.01 | < 0.01 | 0.01* |
| Poultry (layer only) – Closest feeding level (0.39 mg/kg bw; 4 N rate)c | |||||
| Eggs | < 0.01 | < 0.01 | < 0.01 | < 0.01 | 0.01* |
n.a.: not applicable.
Indicates that the MRL is proposed at the limit of quantification.
Median residues recalculated at the 1N rate for the median dietary burden.
Highest residues recalculated at the 1N rate for the maximum dietary burden.
Closest feeding level and N dose rate related to the maximum dietary burden.
For milk, mean was derived from samplings performed from day 1 to day 30 (daily mean of four cows).
Since extrapolation from cattle to other ruminants and swine is acceptable, results of the livestock feeding study on ruminants were relied upon to derive the MRL and risk assessment values in sheep and swine.
Noting that the general toxicity of metabolites L1, L4 and L9 (found in liver and kidney) was not addressed.
B.4. Consumer risk assessment
B.4.1. Azoxystrobin
Short‐term (acute) risk assessment: Not relevant since no ARfD has been considered necessary (EFSA, 2010).
B.4.2. Indicative exposure to metabolites L1, L4 and L9 and K1 (conjugate of L1) (as a sum)
B.5. Recommended MRLs
| Codea | Commodity | Existing MRLb | Proposed MRL | Conclusion/recommendation |
|---|---|---|---|---|
| Enforcement residue definition: Azoxystrobin | ||||
|
0251010 0251030 0251040 0251050 0251060 0251070 0251080 |
Lamb's lettuces/corn salads Escaroles/broad‐leaved endives Cresses and other sprouts and shoots Land cresses Roman rocket/rucola Red mustards Baby leaf crops (including brassica spp.) |
15 (ft 1) |
10 | The data gap identified by EFSA has been addressed. The MRL may be lowered to 10 mg/kg in support of adjusted and authorised critical indoor GAPs. The previous consumer risk assessment remains valid |
| 0251020 | Lettuce | 15 | 10 | There were no data gaps identified for this commodity. However, the new data submitted in support of adjusted GAPs indicate that the current MRL can be lowered to the value of 10 mg/kg |
|
1011010 1012010 1013010 1014010 |
Swine muscle Bovine muscle Sheep muscle Goat muscle |
0.01* (ft 2) |
0.01* | The data gap identified by EFSA is partially addressed as full characterisation of the toxicological profile of metabolites L1, L4 and L9 is not available. However, these metabolites were not found in muscle. Therefore, the existing MRLs are not affected by this data gap and can be confirmed |
|
1011020 1012020 1013020 1014020 |
Swine fat Bovine fat Sheep fat Goat fat |
0.05 (ft 2) |
Further risk management considerations required | The data gap identified by EFSA is partially addressed as a full characterisation of the toxicological profile of metabolites L1, L4 and L9 is not available. However, these metabolites were not found in fat. Therefore, the existing MRLs are not affected by this data gap. However, these MRLs are based on CXLs, derived by the JMPR for a more critical EU livestock dietary burden. The EU dietary burden calculated under this assessment is lower, indicating that an MRL of 0.01* mg/kg would be sufficient |
|
1011030 1011040 1011050 1012030 1012040 1012050 1013030 1013040 1013050 1014030 1014040 1014050 |
Swine liver Swine kidney Swine (edible offals) Bovine liver Bovine kidney Bovine (edible offals) Sheep liver Sheep kidney Sheep (edible offals) Goat liver Goat kidney Goat (edible offals) |
0.07 (ft 2) |
Further risk management considerations required |
The data gap identified by EFSA is partially addressed as the genotoxic potential of metabolites L1, L4 and L9 (found exclusively in ruminant liver and kidney) can be ruled out, but a full characterisation of the toxicological profile of these metabolites has not been provided The indicative human exposure resulting to the occurrence of metabolites L1, L4 and L9 in liver and kidney (estimated for the EU livestock dietary burden) was estimated and the RMS concluded that the low exposure does not trigger further investigation for these compounds. The RMS proposed to confirm the risk assessment residue definition in animal commodities as azoxystrobin alone Further risk management considerations should be given to decide whether the argument of the low exposure is acceptable to waive the need to submit data on the general toxicity of L1, L4 an L9. Nevertheless, EFSA noted that this argument does not support the existing EU MRLs (based on CXLs and more critical (5N) livestock dietary burden). Therefore, in the case where risk managers would accept the rationale of the RMS to address the data gap, MRLs for liver, kidney and other edible offals should be set at the LOQ (0.01* mg/kg), in line with the EU dietary burden calculated under the present assessment |
|
1016010 1016020 1016030 1016040 1016050 |
Poultry muscle Poultry fat Poultry liver Poultry kidney Poultry (edible offals) |
0.01* (ft 2) |
0.01* |
The data gap identified by EFSA is partially addressed as full characterisation of the toxicological profile of metabolites L1, L4 and L9 is not available However, as these compounds were not found in the metabolism studies performed on poultry, the existing MRLs are not affected by this data gap and can be confirmed |
|
1020010 1020020 1020030 1020040 |
Cattle milk Sheep milk Goat milk Horse milk |
0.01* (ft 2) |
0.01* |
The data gap identified by EFSA is partially addressed as full characterisation of the toxicological profile of metabolites L1, L4 and L9 is not available However, as these compounds were not found in milk, the existing MRLs are not affected by this data gap and can be confirmed |
| 1030000 | Birds eggs |
0.01* (ft 2) |
0.01* |
The data gap identified by EFSA is partially addressed as full characterisation of the toxicological profile of metabolites L1, L4 and L9 is not available However, as these compounds were not found in eggs, the existing MRL is not affected by this data gap and can be confirmed |
Indicates that the MRL is proposed at the limit of quantification.
Commodity code number according to Annex I of Regulation (EC) No 396/2005.
Existing EU MRL and corresponding footnote on confirmatory data.
The European Food Safety Authority identified some information on residue trials as unavailable. When re‐viewing the MRL, the Commission will take into account the information referred to in the first sentence, if it is submitted by 1 July 2017, or, if that information is not submitted by that date, the lack of it. (Footnote related to data gap No 1 and No 2).
The European Food Safety Authority identified some information on toxicity of metabolites as unavailable. When re‐viewing the MRL, the Commission will take into account the information referred to in the first sentence, if it is submitted by 1 July 2017, or, if that information is not submitted by that date, the lack of it. (Footnote related to data gap No 3).
Appendix C – Pesticide Residue Intake Model (PRIMo)
1.

Appendix D – Input values for the exposure calculations
D.1. Livestock dietary burden calculations
| Feed commodity | Median dietary burden | Maximum dietary burden | ||
|---|---|---|---|---|
| Input value (mg/kg) | Comment | Input value (mg/kg) | Comment | |
| Risk assessment residue definition: azoxystrobin | ||||
| Barley straw | 2.3 | STMR (EFSA, 2013) | 5.5 | HR (EFSA, 2013) |
| Beet, sugar tops | 0.21 | STMR (EFSA, 2013) | 0.38 | HR (EFSA, 2013) |
| Cabbage, heads leaves | 0.03 | STMR (EFSA, 2013) | 0.17 | HR (EFSA, 2013) |
| Kale leaves (forage) | 1.04 | STMR (EFSA, 2013) | 3.5 | HR (EFSA, 2013) |
| Oat straw | 2.3 | STMR (EFSA, 2013) | 5.5 | HR (EFSA, 2013) |
| Rye straw | 3.85 | STMR (EFSA, 2013) | 10.1 | HR (EFSA, 2013) |
| Triticale straw | 3.85 | STMR (EFSA, 2013) | 10.1 | HR (EFSA, 2013) |
| Wheat straw | 3.85 | STMR (EFSA, 2013) | 10.1 | HR (EFSA, 2013) |
| Carrot culls | 0.06 | STMR (EFSA, 2013) | 0.11 | HR (EFSA, 2013) |
| Potato culls | 0.02 | STMR (EFSA, 2013) | 0.03 | HR (EFSA, 2013) |
| Swede roots | 0.05 | STMR (EFSA, 2013) | 0.1 | HR (EFSA, 2013) |
| Turnip roots | 0.06 | STMR (EFSA, 2013) | 0.11 | HR (EFSA, 2013) |
| Barley grain | 0.1 | STMR (EFSA, 2013) | 0.1 | STMR (EFSA, 2013) |
| Bean seed (dry) | 0.01 | STMR (EFSA, 2013) | 0.01 | STMR (EFSA, 2013) |
| Corn, field (Maize) grain | 0.01 | STMR (EFSA, 2013) | 0.01 | STMR (EFSA, 2013) |
| Corn, pop grain | 0.01 | STMR (EFSA, 2013) | 0.01 | STMR (EFSA, 2013) |
| Cowpea seed | 0.01 | STMR (EFSA, 2013) | 0.01 | STMR (EFSA, 2013) |
| Lupin seed | 0.01 | STMR (EFSA, 2013) | 0.01 | STMR (EFSA, 2013) |
| Oat grain | 0.1 | STMR (EFSA, 2013) | 0.1 | STMR (EFSA, 2013) |
| Pea (Field pea) seed (dry) | 0.01 | STMR (EFSA, 2013) | 0.01 | STMR (EFSA, 2013) |
| Rye grain | 0.08 | STMR (EFSA, 2013) | 0.08 | STMR (EFSA, 2013) |
| Soybean seed | 0.05 | STMR (EFSA, 2013) | 0.05 | STMR (EFSA, 2013) |
| Triticale grain | 0.08 | STMR (EFSA, 2013) | 0.08 | STMR (EFSA, 2013) |
| Wheat grain | 0.08 | STMR (EFSA, 2013) | 0.08 | STMR (EFSA, 2013) |
| Beet, sugar dried pulp | 0.18 | STMR (EFSA, 2013) × default PF (18) | 0.18 | STMR (EFSA, 2013) × default PF (18) |
| Beet, sugar ensiled pulp | 0.03 | STMR (EFSA, 2013) × default PF (3) | 0.03 | STMR (EFSA, 2013) × default PF (3) |
| Beet, sugar molasses | 0.28 | STMR (EFSA, 2013) × default PF (28) | 0.28 | STMR (EFSA, 2013) × default PF (28) |
| Brewer's grain dried | 0.33 | STMR (EFSA, 2013) × default PF (3.3) | 0.33 | STMR (EFSA, 2013) × default PF (3.3) |
| Canola (Rape seed) meal | 0.11 | STMR (EFSA, 2013) × default PF (2) | 0.11 | STMR (EFSA, 2013) × default PF (2) |
| Citrus dried pulp | 47.5 | STMR (EFSA, 2013) × default PF (10) | 47.5 | STMR (EFSA, 2013) × default PF (10) |
| Corn, field milled by‐products | 0.01 | STMR (EFSA, 2013)a | 0.01 | STMR (EFSA, 2013)a |
| Corn, field hominy meal | 0.01 | STMR (EFSA, 2013)a | 0.01 | STMR (EFSA, 2013)a |
| Corn, field gluten feed | 0.01 | STMR (EFSA, 2013)a | 0.01 | STMR (EFSA, 2013)a |
| Corn, field gluten, meal | 0.01 | STMR (EFSA, 2013)a | 0.01 | STMR (EFSA, 2013)a |
| Distiller's grain dried | 0.25 | STMR (EFSA, 2013) × default PF (3.3) | 0.25 | STMR (EFSA, 2013) × default PF (3.3) |
| Flaxseed/Linseed meal | 0.04 | STMR × default PF (2)(EFSA, 2016b) | 0.04 | STMR × default PF (2)(EFSA, 2016b) |
| Lupin seed meal | 0.01 | STMR (EFSA, 2013) × default PF (1.1) | 0.01 | STMR (EFSA, 2013) × default PF (1.1) |
| Potato process waste | 0.3 | STMR (EFSA, 2013) × default PF (20) | 0.3 | STMR (EFSA, 2013) × default PF (20) |
| Potato dried pulp | 0.57 | STMR (EFSA, 2013) × default PF (38) | 0.57 | STMR (EFSA, 2013) × default PF (38) |
| Rape meal | 0.11 | STMR (EFSA, 2013) × default PF (2) | 0.11 | STMR (EFSA, 2013) × default PF (2) |
| Rice bran/pollard | 0.61 | STMR (EFSA, 2013) × PF (1.2) | 0.61 | STMR (EFSA, 2013) × PF (1.2) |
| Safflower meal | 0.04 | STMR × default PF (2) (EFSA, 2016b) | 0.04 | STMR × default PF (2) (EFSA, 2016b) |
| Soybean meal | 0.07 | STMR (EFSA, 2013) × default PF (1.3) | 0.07 | STMR (EFSA, 2013) × default PF (1.3) |
| Soybean hulls | 0.65 | STMR (EFSA, 2013) × default PF (13) | 0.65 | STMR (EFSA, 2013) × default PF (13) |
| Sunflower meal | 0.02 | STMR (EFSA, 2013) × default PF (2) | 0.02 | STMR (EFSA, 2013) × default PF (2) |
| Wheat gluten meal | 0.14 | STMR (EFSA, 2013) × default PF (1.8) | 0.14 | STMR (EFSA, 2013) × default PF (1.8) |
| Wheat milled by‐pdts | 0.13 | STMR × PF (1.7) (EFSA, 2013) | 0.13 | STMR × PF (1.7) (EFSA, 2013) |
STMR: supervised trials median residue; HR: highest residue; PF: processing factor.
For maize/corn by‐products, no default processing factor was applied because residues are expected to be below the LOQ (EFSA, 2013). Concentration of residues in these commodities is therefore not expected.
D.2. Consumer risk assessment for azoxystrobin
| Commodity | Chronic risk assessment | |
|---|---|---|
| Input value (mg/kg) | Comment | |
| Grapefruits | 4.9 | STMR (EFSA, 2013) |
| Oranges | 4.75 | STMR (EFSA, 2013) |
| Lemons | 4.9 | STMR (EFSA, 2013) |
| Limes | 4.9 | STMR (EFSA, 2013) |
| Mandarins | 4.9 | STMR (EFSA, 2013) |
| Almonds | 0.01 | STMR (EFSA, 2013) |
| Brazil nuts | 0.01 | STMR (EFSA, 2013) |
| Cashew nuts | 0.01 | STMR (EFSA, 2013) |
| Chestnuts | 0.01 | STMR (EFSA, 2013) |
| Coconuts | 0.01 | STMR (EFSA, 2013) |
| Hazelnuts/cobnuts | 0.01 | STMR (EFSA, 2013) |
| Macadamia | 0.01 | STMR (EFSA, 2013) |
| Pecans | 0.01 | STMR (EFSA, 2013) |
| Pine nut kernels | 0.01 | STMR (EFSA, 2013) |
| Pistachios | 0.44 | STMR (EFSA, 2013) |
| Walnuts | 0.01 | STMR (EFSA, 2013) |
| Apricots | 0.74 | STMR (EFSA, 2013) |
| Cherries (sweet) | 0.74 | STMR (EFSA, 2013) |
| Peaches | 0.74 | STMR (EFSA, 2013) |
| Plums | 0.74 | STMR (EFSA, 2013) |
| Table grapes | 0.72 | STMR (EFSA, 2016a) |
| Wine grapes | 0.72 | STMR (EFSA, 2016a) |
| Strawberries | 1.3 | STMR (EFSA, 2013) |
| Blackberries | 1.03 | STMR (EFSA, 2013) |
| Dewberries | 1.03 | STMR (EFSA, 2013) |
| Raspberries (red and yellow) | 1.03 | STMR (EFSA, 2013) |
| Blueberries | 1.03 | STMR (EFSA, 2013) |
| Cranberries | 0.23 | STMR (EFSA, 2013) |
| Currants (red, black and white) | 1.03 | STMR (EFSA, 2013) |
| Gooseberries (green, red and yellow) | 1.03 | STMR (EFSA, 2013) |
| Rose hips | 1.03 | STMR (EFSA, 2013) |
| Mulberries (black and white) | 1.03 | STMR (EFSA, 2013) |
| Azarole/Mediterranean medlar | 1.03 | STMR (EFSA, 2013) |
| Elderberries | 1.03 | STMR (EFSA, 2013) |
| Carambolas | 0.023 | STMR (EFSA, 2013) |
| Passion fruits/maracujas | 1.1 | STMR (EFSA, 2013) |
| Prickly pears/cactus fruits | 0.041 | STMR (FAO, 2017) |
| Bananas | 0.0326 | STMR * PeF (EFSA, 2013) |
| Mangoes | 0.28 | STMR (EFSA, 2013) |
| Papayas | 0.1 | STMR (EFSA, 2013) |
| Potatoes | 2.3 | STMR (FAO, 2013) |
| Cassava roots/manioc | 0.23 | STMR (EFSA, 2013) |
| Sweet potatoes | 0.23 | STMR (EFSA, 2013) |
| Yams | 0.23 | STMR (EFSA, 2013) |
| Arrowroots | 0.23 | STMR (EFSA, 2013) |
| Beetroots | 0.23 | STMR (EFSA, 2013) |
| Carrots | 0.23 | STMR (EFSA, 2013) |
| Celeriacs/turnip rooted celeries | 0.23 | STMR (EFSA, 2013) |
| Horseradishes | 0.23 | STMR (EFSA, 2013) |
| Jerusalem artichokes | 0.23 | STMR (EFSA, 2013) |
| Parsnips | 0.23 | STMR (EFSA, 2013) |
| Parsley roots/Hamburg roots parsley | 0.23 | STMR (EFSA, 2013) |
| Radishes | 0.295 | STMR (EFSA, 2013) |
| Salsifies | 0.23 | STMR (EFSA, 2013) |
| Swedes/rutabagas | 0.23 | STMR (EFSA, 2013) |
| Turnips | 0.23 | STMR (EFSA, 2013) |
| Garlic | 2.2 | STMR (EFSA, 2013) |
| Onions | 2.2 | STMR (EFSA, 2013) |
| Shallots | 2.2 | STMR (EFSA, 2013) |
| Spring onions/green onions and Welsh onions | 2.2 | STMR (EFSA, 2013) |
| Tomatoes | 0.35 | STMR (EFSA, 2013) |
| Sweet peppers/bell peppers | 0.71 | STMR (EFSA, 2013) |
| Aubergines/egg plants | 0.35 | STMR (EFSA, 2013) |
| Okra/lady's fingers | 0.35 | STMR (EFSA, 2013) |
| Cucumbers | 0.17 | STMR (EFSA, 2013) |
| Gherkins | 0.17 | STMR (EFSA, 2013) |
| Courgettes | 0.17 | STMR (EFSA, 2013) |
| Melons | 0.17 | STMR (EFSA, 2013) |
| Pumpkins | 0.17 | STMR (EFSA, 2013) |
| Watermelons | 1 | MRL (EFSA, 2013) |
| Broccoli | 1.2 | STMR (EFSA, 2013) |
| Cauliflowers | 1.2 | STMR (EFSA, 2013) |
| Brussels sprouts | 1.2 | STMR (EFSA, 2013) |
| Head cabbages | 1.2 | STMR (EFSA, 2013) |
| Chinese cabbages/pe‐tsai | 1.04 | STMR (EFSA, 2013) |
| Kales | 1.04 | STMR (EFSA, 2013) |
| Kohlrabies | 1.2 | STMR (EFSA, 2013) |
| Lamb's lettuce/corn salads | 3.4 | STMR (updated in the current opinion; see Appendix B.2.2.1) |
| Lettuces | 3.4 | STMR (updated in the current opinion; see Appendix B.2.2.1) |
| Escaroles/broad‐leaved endives | 3.4 | STMR (updated in the current opinion; see Appendix B.2.2.1) |
| Cress and other sprouts and shoots | 3.4 | STMR (updated in the current opinion; see Appendix B.2.2.1) |
| Land cress | 3.4 | STMR (updated in the current opinion; see Appendix B.2.2.1) |
| Roman rocket/rucola | 3.4 | STMR (updated in the current opinion; see Appendix B.2.2.1) |
| Red mustards | 3.4 | STMR (updated in the current opinion; see Appendix B.2.2.1) |
| Baby leaf crops (including brassica species) | 3.4 | STMR (updated in the current opinion; see Appendix B.2.2.1) |
| Spinaches | 3.9 | STMR (EFSA, 2013) |
| Purslanes | 3.9 | STMR (EFSA, 2013) |
| Chards/beet leaves | 3.9 | STMR (EFSA, 2013) |
| Witloofs/Belgian endives | 0.05 | STMR (EFSA, 2013) |
| Chervil | 23 | STMR (EFSA, 2013) |
| Chives | 23 | STMR (EFSA, 2013) |
| Celery leaves | 23 | STMR (EFSA, 2013) |
| Parsley | 23 | STMR (EFSA, 2013) |
| Sage | 23 | STMR (EFSA, 2013) |
| Rosemary | 23 | STMR (EFSA, 2013) |
| Thyme | 23 | STMR (EFSA, 2013) |
| Basil and edible flowers | 23 | STMR (EFSA, 2013) |
| Laurel/bay leaves | 23 | STMR (EFSA, 2013) |
| Tarragon | 23 | STMR (EFSA, 2013) |
| Beans (with pods) | 1.04 | STMR (EFSA, 2013) |
| Beans (without pods) | 1.04 | STMR (EFSA, 2013) |
| Peas (with pods) | 1.04 | STMR (EFSA, 2013) |
| Peas (without pods) | 1.04 | STMR (EFSA, 2013) |
| Lentils (fresh) | 1.04 | STMR (EFSA, 2013) |
| Asparagus | 0.01 | STMR (EFSA, 2013) |
| Cardoons | 1.98 | STMR (EFSA, 2013) |
| Celeries | 1.98 | STMR (EFSA, 2013) |
| Florence fennels | 2.2 | STMR (EFSA, 2013) |
| Globe artichokes | 1.8 | STMR (EFSA, 2013) |
| Leeks | 2.2 | STMR (EFSA, 2013) |
| Rhubarbs | 0.1 | STMR (EFSA, 2013) |
| Beans | 0.01 | STMR (EFSA, 2013) |
| Lentils | 0.01 | STMR (EFSA, 2013) |
| Peas | 0.01 | STMR (EFSA, 2013) |
| Lupins/lupini beans | 0.01 | STMR (EFSA, 2013) |
| Linseeds | 0.02 | STMR (EFSA, 2016b) |
| Peanuts/groundnuts | 0.01 | STMR (EFSA, 2013) |
| Poppy seeds | 0.06 | STMR (EFSA, 2013) |
| Sunflower seeds | 0.04 | STMR (EFSA, 2013) |
| Rapeseeds/canola seeds | 0.06 | STMR (EFSA, 2013) |
| Soyabeans | 0.05 | STMR (EFSA, 2013) |
| Mustard seeds | 0.06 | STMR (EFSA, 2013) |
| Cotton seeds | 0.01 | STMR (EFSA, 2013) |
| Safflower seeds | 0.02 | STMR (EFSA, 2016b) |
| Borage seeds | 0.02 | STMR (EFSA, 2016b) |
| Gold of pleasure seeds | 0.06 | STMR (EFSA, 2013) |
| Barley | 0.05 | STMR (FAO, 2013) |
| Maize/corn | 0.01 | STMR (EFSA, 2013) |
| Oat | 0.05 | STMR (FAO, 2013) |
| Rice | 0.52 | STMR (EFSA, 2013) |
| Rye | 0.08 | STMR (EFSA, 2013) |
| Sorghum | 1.85 | STMR (FAO, 2013) |
| Wheat | 0.08 | STMR (EFSA, 2013) |
| Coffee beans | 0.01 | STMR (FAO, 2013) |
| Hops (dried) | 3.93 | STMR (EFSA, 2013) |
| Sugar beet roots | 0.01 | STMR (EFSA, 2013) |
| Sugar canes | 0.02 | STMR (FAO, 2017) |
| Chicory roots | 0.03 | STMR (EFSA, 2013) |
| Swine: Muscle/meat | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Swine: Fat tissue | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Swine: Liver | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Swine: Kidney | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Bovine: Muscle/meat | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Bovine: Fat tissue | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Bovine: Liver | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Bovine: Kidney | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Sheep: Muscle/meat | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Sheep: Fat tissue | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Sheep: Liver | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Sheep: Kidney | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Goat: Muscle/meat | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Goat: Fat tissue | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Goat: Liver | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Goat: Kidney | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Poultry: Muscle/meat | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Poultry: Fat tissue | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Poultry: Liver | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Milk: Cattle | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Milk: Sheep | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Milk: Goat | 0.01 | STMR (EFSA, 2013 based on CXL) |
| Eggs: Chicken | 0.01 | STMR (EFSA, 2013 based on CXL) |
STMR: supervised trials median residue; CXL: Codex maximum residue limit.
D.3. Exposure calculations for metabolites L1, L4, L9 and K1 (conjugate to L1)
| Commodity | Chronic exposure | Acute exposure | ||
|---|---|---|---|---|
| Input value (mg/kg) | Comment | Input value (mg/kg) | Comment | |
| Swine: Liver | 0.111 | Sum of metabolites L1, L4, L9 and K1 (conjugate of L1), as calculated in Section 3.3.2 (Swine DB), and corrected according to their respective molecular weightsa | 0.111 | Sum of metabolites L1, L4, L9 and K1 (conjugate of L1), as calculated in Section 3.3.2 and corrected according to their respective molecular weighta |
| Swine: Kidney | 0.023 | Same comment | 0.023 | Same comment |
| Swine: edible offals (other than liver and kidney) | 0.111 | Same comment | 0.111 | Same comment |
| Swine: other products | 0.111 | Same comment | 0.111 | Same comment |
| Bovine: Liver | 0.160 | Same comment (based on Cattle DB) | 0.160 | Same comment (based on Cattle DB) |
| Bovine: Kidney | 0.033 | Same comment | 0.033 | Same comment |
| Bovine: edible offals (other than liver and kidney) | 0.160 | Same comment | 0.160 | Same comment |
| Bovine: other products | 0.160 | Same comment | 0.160 | Same comment |
| Sheep: Liver | 0.061 | Same comment (based on sheep DB) | 0.061 | Same comment (based on sheep DB) |
| Sheep: Kidney | 0.012 | Same comment | 0.012 | Same comment (based on Cattle DB) |
| Sheep: edible offals (other than liver and kidney) | 0.061 | Same comment | 0.061 | Same comment |
| Sheep: other products | 0.061 | Same comment | 0.061 | Same comment |
| Goat: Liver | 0.061 | Extrapolated from Sheep | 0.061 | Extrapolated from Sheep |
| Goat: Kidney | 0.012 | Extrapolated from Sheep | 0.012 | Extrapolated from Sheep |
| Goat: edible offals (other than liver and kidney) | 0.061 | Extrapolated from Sheep | 0.061 | Extrapolated from Sheep |
| Goat: other products | 0.061 | Extrapolated from Sheep | 0.061 | Extrapolated from Sheep |
| Equine: Liver | 0.161 | Extrapolated from Bovine | 0.160 | Extrapolated from Bovine |
| Equine: Kidney | 0.033 | Extrapolated from Bovine | 0.033 | Extrapolated from Bovine |
| Equine: edible offals (other than liver and kidney) | 0.160 | Extrapolated from Bovine | 0.160 | Extrapolated from Bovine |
| Equine: other products | 0.160 | Extrapolated from Bovine | 0.160 | Extrapolated from Bovine |
molecular weight of metabolites L1 (419.4 kg.mol−1), L4 (238.3 kg.mol−1), L9 (349.3 kg.mol−1), K1 (595.5 kg.mol−1).
Appendix E – Used compound codes
1.
| Code/Trivial namea | IUPAC name/SMILES notation/InChiKeyb | Structural formulac |
|---|---|---|
| Azoxystrobin |
methyl (2E)‐2‐(2‐{[6‐(2‐cyanophenoxy)pyrimidin‐4‐yl]oxy}phenyl)‐3‐methoxyacrylate O=C(OC)\C(=C\OC)c1ccccc1Oc1cc(Oc2ccccc2C#N)ncn1 WFDXOXNFNRHQEC‐GHRIWEEISA‐N |
|
| L1 | methyl (2E)‐2‐(2‐{[6‐(2‐ cyanophenoxy)pyrimidin‐4‐yl]oxy}‐xhydroxyphenyl)‐3‐methoxyprop‐2‐enoate |
|
| L4 | S‐(2‐cyano‐x‐hydroxyphenyl)cysteine |
|
| L9 | 2‐{[6‐(2‐cyanophenoxy)pyrimidin‐4‐ yl]oxy}‐x‐hydroxybenzoic acid |
|
| K1 | 4‐{[6‐(2‐cyanophenoxy)pyrimidin‐4‐ yl]oxy}‐3‐[(1E)‐1,3‐dimethoxy‐3‐oxoprop1‐en‐2‐yl]phenyl glucopyranuronic acid |
|
The metabolite name in bold is the name used in the conclusion.
ACD/Name 2019.1.1 ACD/Labs 2019 Release (File version N05E41, Build 110555, 18 July 2019).
ACD/ChemSketch 2019.1.1 ACD/Labs 2019 Release (File version C05H41, Build 110712, 24 July 2019).
Suggested citation: EFSA (European Food Safety Authority) , Anastassiadou M, Bernasconi G, Brancato A, Carrasco Cabrera L, Ferreira L, Greco L, Jarrah S, Kazocina A, Leuschner R, Magrans JO, Miron I, Nave S, Pedersen R, Reich H, Rojas A, Sacchi A, Santos M, Stanek A, Theobald A, Vagenende B and Verani A, 2020. Reasoned opinion on the evaluation of confirmatory data following the Article 12 MRL review and modification of the existing maximum residue levels for azoxystrobin. EFSA Journal 2020;18(8):6231, 42 pp. 10.2903/j.efsa.2020.6231
Requestor: European Commission
Question numbers: EFSA‐Q‐2019‐00610; EFSA‐Q‐2019‐00611
Acknowledgements: EFSA wishes to thank the following for the support provided to this scientific output: Chris Anagnostopoulos, Laszlo Bura, Georgios Chatzisotiriou, Viktoria Krivova, Silvia Ruocco and Viktor Toth.
Adopted: 31 July 2020
Notes
Regulation (EC) No 396/2005 of the Parliament and of the Council of 23 February 2005 on maximum residue levels of pesticides in or on food and feed of plant and animal origin and amending Council Directive 91/414/EEC. OJ L 70, 16.03.2005, p. 1–16.
Commission Regulation (EU) 2015/1040 of 30 June 2015 amending Annexes II, III and V to Regulation (EC) No 396/2005 of the European Parliament and of the Council as regards maximum residue levels for azoxystrobin, dimoxystrobin, fluroxypyr, methoxyfenozide, metrafenone, oxadiargyl and tribenuron in or on certain products OJ L 167, 1.7.2015, p. 10–56.
Commission Regulation (EU) No 544/2011 of 10 June 2011 implementing Regulation (EC) No 1107/2009 of the European Parliament and of the Council as regards the data requirements for active substances. OJ L 155, 11.6.2011, p. 1–66.
Commission Regulation (EU) No 546/2011 of 10 June 2011 implementing Regulation (EC) No 1107/2009 of the European Parliament and of the Council as regards uniform principles for evaluation and authorisation of plant protection products. OJ L 155, 11.6.2011, p. 127–175.
Data gap number 3: additional information on the toxicological relevance of metabolites L1, L4 and L9, which were identified in products of animal origin.
Data gap number 1: further information about the open leaf varieties used in the northern residue trials.
Data gap number 2: three additional residue trials supporting the southern outdoor GAP and four additional trials supporting the indoor GAP on lettuce other salad plants.
JMPR dietary burden (72 mg/kg DM)/EU dietary burden (15 mg/kg DM) = 4.8.
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