Modification of the existing maximum residue levels for 1,4‐dimethylnaphthalene in potatoes

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. 2023 Aug 7;21(8):e08190. doi: 10.2903/j.efsa.2023.8190

Commodity	Region ^(a)	Residue levels observed in the supervised residue trials (mg/kg)	Comments/Source	Calculated MRL (mg/kg)	HR ^(b) (mg/kg)	STMR ^(c) (mg/kg)	CF ^(d)
Potatoes	Indoor (post‐harvest), EU	Mo: 3.3; 3.8 ^(e) ; 4.0; 4.3; 5.6; 5.9; 6.3; 7.8; 8.0; 8.1; 8.2; 8.4 ^(e) ; 8.4; 8.7; 9.6; 10.9 RA: –	Trials on potatoes compliant with GAP (Netherlands, 2022). Residues underlined when occurred higher at longer withholding period. The available trials do not provide analyses for the conjugates of M21, results for RD‐RA are not available. When considering the RD‐RA without the M21 conjugates, the following residue levels were quantified: –; −; 5.8; 6.8; 8.9; 9.6; 10.7; 10.6; 11.9; −; 12.7; −; 14; 17.3; −; −	20	10.9	7.9	1.9

Commodity

Region ^(a)

Residue levels observed in the supervised residue trials (mg/kg)

Comments/Source

Calculated MRL (mg/kg)

HR ^(b) (mg/kg)

STMR ^(c) (mg/kg)

CF ^(d)

Potatoes

Indoor (post‐harvest), EU

Mo: 3.3; 3.8 ^(e) ; 4.0; 4.3; 5.6; 5.9; 6.3; 7.8; 8.0; 8.1; 8.2; 8.4 ^(e) ; 8.4; 8.7; 9.6; 10.9

RA: –

Trials on potatoes compliant with GAP (Netherlands, 2022).

Residues underlined when occurred higher at longer withholding period.

The available trials do not provide analyses for the conjugates of M21, results for RD‐RA are not available.

When considering the RD‐RA without the M21 conjugates, the following residue levels were quantified: –; −; 5.8; 6.8; 8.9; 9.6; 10.7; 10.6; 11.9; −; 12.7; −; 14; 17.3; −; −

10.9

7.9

1.9

MRL: maximum residue level; GAP: Good Agricultural Practice; Mo: monitoring; RA: risk assessment.

^(a)

NEU: Outdoor trials conducted in northern Europe, SEU: Outdoor trials conducted in southern Europe, EU: indoor EU trials or Country code: if non‐EU trials.

^(b)

Highest residue. The highest residue for risk assessment refers to the whole commodity and not to the edible portion.

^(c)

Supervised trials median residue. The median residue for risk assessment refers to the whole commodity and not to the edible portion.

^(d)

Conversion factor to recalculate residues according to the residue definition for monitoring to the residue definition for risk assessment. CF was derived from metabolism trials with potatoes treated six times and analysed after 30 days (EFSA, 2017).

^(e)

EFSA selected different values than those reported by the EMS. In peer reviewed trials ‘R02‐139‐01’ and ‘rep 21158 (room 10)’ higher residues occurred at longer WHP of 15 days.