施用林丹跟踪监测研究

ABSTRACTMonitoring of the Residues of lnsecticide Lidane in Soils and Crops.

林丹虽是有机氯类农药，但在作物及土壤中丙体六六六的残留量不高。１９９１年、１９９２年在河南、河北、山东等三省六县施用林丹地区跟踪监测结果表明，土壤样品中的残留量为６－１３０μｇ／ｋｇ，全部符合我国土壤中林丹残留量的送审稿标准（＜６００μｇ／ｋｇ）。小麦中的残留量为＜２－４２μｇ／ｋｇ，全部符合联合国粮农组织（ＦＡＯ）提出的粮食中林丹残留量标准（＜１００μｇ／ｋｇ）。

Abstract Lindane is and effecacious and low toxic insecticide for preventionand control of many pests, Although it is an organic pesticide continingchlorine,the residue of gamma-HCH in the crops and soil was rather l0w.In the six counties of Henan,Hebei and Shandong Provinces,the monito-ring data showed that the residue level Was 6-130μg/kg in soil samples and was below the Tentative Environmental Standard(<600μg/kg ) inchina,In the wheat samples,the residue level was 2-42μg/kg and was within the FAO standard(<100μg/kg).