Toan Vu Duc, Thao Vu Duc, Walder Jürg, Schmutz Hans-Rudolf, Ha Cao The
Hanoi Water Resources University, 175 Tay Son Street, Hanoi, Vietnam.
Bull Environ Contam Toxicol. 2007 Apr;78(3-4):195-200. doi: 10.1007/s00128-007-9149-z. Epub 2007 May 3.
An evaluation of selected organochlorine pesticide residues [p,p'- dichlorodiphenyltrichloroethane (DDT), p,p'- dichlorodiphenyldichloroethylene (DDE), p,p'- dichlorodiphenyldichloroethane (DDD), alpha, beta, gamma and delta- hexachlorocyclohexane (HCH)] in the surface soils of Hanoi, Vietnam was carried out. Sixty representative soil samples were collected from the centre of Hanoi and five surrounding districts. In agricultural areas, SigmaDDT concentrations ranged from < 0.02 to 171.83 ng g(-1) (mean 89.86 ng g(-1)) dry weight, whereas SigmaHCH concentrations ranged from < 0.05 to 20.57 ng g(-1) (mean 8.03 ng g(-1)) dry weight. Investigation of the ratio of different isomers in the soil samples indicates that there has been no recent input of DDT and HCH in the study area.
对越南河内表层土壤中选定的有机氯农药残留量[对，对'-二氯二苯三氯乙烷（滴滴涕）、对，对'-二氯二苯二氯乙烯（DDE）、对，对'-二氯二苯二氯乙烷（DDD）、α、β、γ和δ-六氯环己烷（六氯环己烷）]进行了评估。从河内市中心和五个周边地区采集了60个具有代表性的土壤样本。在农业区，总滴滴涕浓度范围为<0.02至171.83纳克/克（-1）（平均89.86纳克/克（-1））干重，而总六氯环己烷浓度范围为<0.05至20.57纳克/克（-1）（平均8.03纳克/克（-1））干重。对土壤样本中不同异构体比例的调查表明，研究区域近期没有滴滴涕和六氯环己烷的输入。
