Residue and Dietary Risk Assessment of Pyrimethanil in Strawberry
Article
Figures
Metrics
Preview PDF
Reference
Related
Cited by
Materials
Abstract:
In order to assess the dietary exposure risk of pyrimethanil residue in greenhouse strawberry, the final residues and decline trends of pyrimethanil used in strawberry were studied. A risk assessment was performed using the risk quotient (RQ). The results indicated that the dissipation rate of pyrimethanil in strawberry fruits followed the first-order kinetics. The half-life of pyrimethanil was 4.28 d. The pyrimethanil (400 g/L suspension) was sprayed on strawberries grown under greenhouse conditions at the dosage of 562.5 and 843.75 g a.i./ha with the preharvest interval of 3, 5, 7 d. The ultimate residue levels for pyrimethanil in strawberry fruits were lower than the established MRLs in China (3 mg/kg). The dietary exposure and risk assessment were conducted based on the supervised field trial data. The results indicated that the dietary intake of pyrimethanil from strawberry consumption for all groups Chinese consumers were acceptable. This study would provide more understanding of residue behavior and dietary intake risk by pyrimethanil used under greenhouse conditions.
