关中盆地不同类型土壤中六六六和滴滴涕的残留分布
首发时间:2006-01-23
摘要:用气相色谱法(GC-ECD)测定了陕西省关中盆地不同类型土壤中六六六和滴滴涕的残留量。结果表明:HCHs的平均残留量在漫滩-粉砂中最多,而在黄土台塬-黄土、二级阶地-黄土和一级阶地-粉质粘土中则相对较少。DDTs的平均残留量在黄土台塬-黄土中最多,而在二级阶地-黄土、一级阶地-粉质粘土和漫滩-粉砂中则相对较少,在漫滩-粉砂中有新的滴滴涕污染源。γ- HCH和p,p、-DDE的残留量最大,可能是因为使用了林丹和三氯杀螨醇。
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Distribution of HCH and DDT Residues in Different Soils in Guanzhong Basin
Abstract:Residue amounts of HCHs and DDTs in different soil samples of Shan’xi Guanzhong Basin were determined by GC-ECD. The results showed that there were more HCHs residues in flood plain-silty soil but less in losee plateau, second terrace- losee and second bottom-silty clay; There were more DDTs residue in losee plateau but less in second terrace- losee, second bottom-silty clay and flood plain-silty soil . There were new contamination compounds in flood plain-silty soil . γ- HCH and p,p、-DDE are the most residues. Perhaps Lindane and Dicofol are still used.
Keywords: Guanzhong Basin; HCHs; DDTs; soil
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No.5092470171137988****
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