Characteristics of pesticide residues and dietary exposure risk assessment of vegetables sold in Qingdao City

ObjectiveTo provide scientific basis for the safety of vegetables in Qingdao， the pollution level of pesticide residues in vegetables in Qingdao was understood.MethodsSix hundred and eighty vegetable samples of 7 categories were randomly collected from 10 districts and cities in Qingdao from 2020 to 2022. The characteristics of 28 pesticide residues in vegetable samples were detected and analyzed， and the acute and chronic dietary exposure risks of detected pesticides were assessed.ResultsIn 680 vegetable samples， the detection rate was 9.71% （66/680）. The over-standard rate was 2.79% （19/680）. A total of 10 pesticides were detected， and the highest detection rate was bifenthrin with （4.50%， 27/600）. A total of 6 pesticides exceeded the standard， and the highest rate was chlorpyrifos （1.18%， 8/680）. The difference between the detection rate and the over-standard rate of all kinds of pesticides was statistically significant （P