| Summary: | AbstractThe present study was done to monitor the degradation pattern of chlorpyrifos on Golden Delicious apples in the Kashmir valley under storage conditions. The dissipation pattern was studied for three application rates of chlorpyrifos (Dursban 20 EC) by dipping the samples in T1 (first dose) 2 ml/1000 ml, T2 (second dose) 1 ml/1000 ml, and T3 (third dose) 0.5 ml/1000 ml. The initial deposit was found to be 40.62 µg/kg for T1, 37.23 µg/kg for T2, and 35.27 µg/kg for T3 on apple. The residue dissipated to about 2.53 µg/kg in T1, 2.32 µg/kg in T2, and 2.2 µg/kg in T3 after 300 days of application. The waiting period after proper risk assessment was calculated and was found to be 1.6 days for almost all application rates. The theoretical maximum residue contribution values were calculated, and, in relation to maximum permissible intake, it was found that chlorpyrifos poses a minimum health risk when consumed after 1.6 days in storage.
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