杀虫剂
毒死蜱
环境科学
农业
土壤水分
农药残留
风险评估
毒理
环境保护
生态学
生物
计算机安全
计算机科学
土壤科学
作者
Wei Zuo,Yang Zhao,Peipei Qi,Chunrong Zhang,Xueping Zhao,Shenggan Wu,Xuehua An,Xinju Liu,Xi Cheng,Yijun Yu,Tao Tang
标识
DOI:10.1016/j.envres.2023.118023
摘要
Pesticides represent one of the largest intentional inputs of potentially hazardous compounds into agricultural soils. However, as an important vegetable producing country, surveys on pesticide residues in soils of vegetable production areas are scarce in China. This study presented the occurrence, spatial distribution, correlation between vegetable types and pesticides, and ecological risk evaluation of 94 current-use pesticides in 184 soil samples from vegetable production areas of Zhejiang province (China). The ecological risks of pesticides to soil biota were evaluated with toxicity exposure ratios (TERs) and risk quotient (RQ). The pesticide concentrations varied largely from below the limit of quantification to 20703.06 μg/kg (chlorpyrifos). The situation of pesticide residues in Jiaxing is more serious than in other cities. Soils in the vegetable areas are highly diverse in pesticide combinations. Eisenia fetida suffered exposure risk from multiple pesticides. The risk posed by chlorpyrifos, which exhibited the highest RQs at all scenarios, was worrisome. Only a few pesticides accounted for the overall risk of a city, while the other pesticides make little or zero contribution. This work will guide the appropriate use of pesticides and manage soil ecological risks, achieving green agricultural production.
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