乙草胺农药厂周围土壤和农作物污染分布特征及风险评价  

Pollution and risk assessment of acetochlor in soils and crops near an acetochlor manufactory

作　　者：李体文 王慧敏[1] 魏朝俊[1] 赵建庄[1] 贾临芳[1] 梁丹[1] 

机构地区：[1]北京农学院农产品有害微生物及农残安全检测与控制北京市重点实验室,北京102206

出　　处：《农药学学报》2013年第6期686-691,共6页Chinese Journal of Pesticide Science

基　　金：北京市科委2012年阶梯计划(Z121106002812039);北京市教委面上项目(PXM2014_014207_000001);科技成果转化及产业化项目(PXM2013_014207_000056);北京市教委科技面上项目(KM201210020014);北京高校"青年英才计划"项目(FK2012-16)

摘　　要：通过对农药厂周围土壤和农作物中乙草胺含量的测定，研究了乙草胺农药厂对其周边环境的污染情况。从距离农药厂100 m以内15个点共取得73份样品，采用气相色谱法测定了土壤及农作物样品中乙草胺的残留量。结果显示：农药厂南面土壤及农作物中乙草胺的平均检出量分别为38.2～45.3 μg/kg和39.5～46.0 μg/kg，东面分别为15.4～22.9 μg/kg和21.6～30.1 μg/kg；耕作区土壤污染状况在垂直方向及不同距离上均未表现出明显的差异性；东面及南面土壤与农作物中污染情况分别存在对应关系。农作物样品中乙草胺的平均检出量为21.6～46.0 μg/kg，表明该区域生产的农产品存在一定的安全风险。The pollution characteristics of acetochlor in soils and crops near an manufactory were investigated by testing the acetochlor residues with gas chromatography. 73 samples were collected from 15 points within 100 meters around the manufactory. It was observed that the residues of acetochlor in south area were 38.2-45.3 μg/kg in soils and 39.5-46.0 μg/kg in crops. The residues of acetochlor in east area were 15.4-22.9 μg/kg in soils and 21.6-30.1 μg/kg in crops. It showed no significant differences about residues in soil samples in the vertical direction and different distances. There was a corresponding relationship of residues between soil and crop samples. The residues of acetochlor in crops were 21.6-46.0 μg/kg, suggesting that the agricultural products in this region have a certain dietary risk.

关 键 词：乙草胺 土壤 农作物 残留 气相色谱 

分 类 号：TQ450.263[化学工程—农药化工] X592[环境科学与工程—环境工程]