Table 2.
Mean concentrations and MRLs of OCP residues in amaranths and fluted pumpkin from selected locations in South-western Nigeria.
| Pesticides | Amaranths (n=16) |
Fluted pumpkin (n=16) |
|||||
|---|---|---|---|---|---|---|---|
| UK/EC MRL (mg kg−1) | Mean ± SE (mg kg−1) | Range (mg kg−1) | % above MRLs | Mean ± SE (mg kg−1) | Range (mg kg−1) | % above MRLs | |
| Heptachlor | 0.01 | 0.052 ± 0.025 | ND - 0.328 | 25 | 0.323 ± 0.048 | ND - 0.608 | 81.3 |
| Heptachlor epoxide | 0.01 | 0.051 ± 0.014 | ND - 0.149 | 50 | 0.026 ± 0.014 | ND - 0.195 | 25 |
| Aldrin | 0.01 | 0.509 ± 0.133 | ND - 1.538 | 81.3 | 0.391 ± 0.065 | ND - 0.938 | 93.8 |
| Dieldrin | 0.01 | 0.205 ± 0.134 | ND - 2.180 | 37.5 | 1.465 ± 0.879 | ND - 14.496 | 68.75 |
| Endrin | 0.01 | 0.298 ± 0.184 | ND - 2.208 | 37.5 | 0.351 ± 0.371 | ND - 4.397 | 50 |
| Endrin aldehyde | 0.01 | 2.987 ± 0.391 | ND - 5.364 | 93.8 | 3.491 ± 0.376 | ND - 7.210 | 93.8 |
| α-Endosulfan | 0.05 | 0.074 ± 0.028 | ND - 0.157 | 68.75 | 0.079 ± 0.014 | ND - 0.198 | 75 |
| β-Endosulfan | 0.05 | 0.053 ± 0.066 | 0.092-0.965 | 100 | 0.595 ± 0.076 | 0.185–1.142 | 100 |
| Endosulfan sulfate | 0.05 | 0.661 ± 0.280 | ND - 3.375 | 50 | 2.775 ± 0.644 | ND - 9.478 | 87.5 |
| Total OCP burden | 5.366 ± 0.478 | 9.496 ± 1.075 | |||||
| p-value (Mann-Whitney U test) | 0.436 ns | ||||||
ns means not significant at p = 0.05.