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

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.