Residues and Dietary Risk Assessment of Acetochlor Prometryn and 2,4-D-ethylhexyl in Spring Maize
To evaluate the potential dietary exposure risks of acetochlor,prometryn,and 2,4-D-ethylhexyl following their application in spring maize,a standardized field residue trial was conducted to detect their residues in spring maize.Combining the NEDI and ADI in China,the RQ of these pesticides was evaluated.At addition levels of 0.01～0.55 mg/kg,the average recoveries of the three active ingredients and their metabolites in fresh maize,maize,fresh maize stover,and maize stover were 88%～113%,with relative standard deviations of 0.4%～8.6%.A one-year,six-site standardized residue field trial was conducted,and no residues of the three active ingredients and their metabolites were detected in fresh maize,maize,fresh maize stover,and maize stover.The NEDI of the three active ingredients for the general population was 0.035,0.032,and 0.28 mg/(kg bw),respectively,and the RQ was 5.49%,1.29%,and 44.8%,respectively.The results of the dietary risk assessment showed that the residues of acetochlor,prometryn,and 2,4-D-ethylhexyl in spring maize were within an acceptable range and would not have a significant impact on human health in China.
NETL
NSTL
万方数据
