Analysis of Short-term Dietary Intake Risk and Combined Exposure Risk of Pesticide Residues in Bananas
Objective:To investigate the pesticide residues in bananas,and to compare and analyze the short-term dietary intake risk and combined exposure risk of bananas.Method:Pesticide residues of 139 batches of bananas were determined in Lanzhou city,and the short-term dietary intake risk and combined exposure risk of pesticide residues were evaluated in adults and children aged 1～6 years.Result:A total of 10 kinds of pesticides were detected in 139 batches of bananas,among which the pesticide residues with high detection rate were polyendazim(71.22%),imidacloprid(66.91%),phenoxyconazole(26.62%),cyhalothrin(17.99%)and pentazolol(10.79%).There were 26 batches of samples exceeding the maximum limit of banana pesticide residues.They were imidacloprid(21 batches),thiamethoxam(3 batches)and nitriloxazole(2 batches).The short-term dietary risk values of 10 pesticide residues in adults and children were all less than 100%,indicating that the short-term dietary risk of pesticide residues in adults and children in bananas was acceptable.Pesticide residues were detected in 130 of 139 batches of bananas,and the samples containing 2,3,4,5 and 6 kinds of pesticide residues were 46,25,14,6 and 1 batches,respectively.The separation point index of the combined exposure risk of pesticide residues in adults and children is less than 1,indicating that the exposure risk of adults and children is acceptable,but some children's PODI is close to 1,indicating that the combined exposure risk of children in some bananas is hidden danger.Conclusion:The short-term dietary risk assessment method for pesticide residues may lead to an underestimation of the risk degree,and the joint exposure risk assessment can grasp the dietary risk more comprehensively.
万方数据
维普
