川白芷种植基地土壤中有机氯类农药残留情况研究

Study on Residuals of Organochlorine Pesticide in Soil planted Angelica dahurica

本实验采集了川白芷的主要道地产区四川省遂宁市、南充市、资阳市、达州市等地共计53个样品。参照GB/T14550-2003标准对各土壤样品中有机氯类农药残留量进行了测定,结果表明四川省遂宁市土壤受DDT类农药污染严重,占到采样点数的27.5%,其余采样点基本未受到有机氯类农药的污染,在选择种植基地时应加以注意。

Soil samples,planted Angelica dahurica,from 53 sites in Suining City,Nanchong City,Ziyang City,Dazhou City,were collected.According to GB/T 14550-2003,Organochlorine pesticides residues in the soil were detected by GC-μ-ECD.The results show that samples from Suining City in Sichuan provinces were polluted serious by DDTs,it occupies the number of points sampled 27.5%,other samples were not contaminated by organochlorine pesticides,since more attention should be paid to the choose of the plant base.