Characters of Organochlorine Pestcides Residues in Vegetable Field,Orchard and Paddy Soil in Guangzhou Suburban Areas
- VernacularTitle:广州郊区菜地、果园、稻田有机氯农药残留特征初步研究
- Author:
Qi-Hang WU
;
Hong-Mei DENG
;
- Publication Type:Journal Article
- Keywords:
Soil;
Organochlorine pesticides;
Dichlorodiphenyltrichloroethane;
Hexachlorocyclohexanes;
Residues
- From:
Journal of Environment and Health
2007;0(11):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the characteristics of of organochlorine pesticides(OCPs) residues in the soil of the suburbs of Guangzhou.Methods In Baiyun,Conghua,Zengcheng,Panyu,Nansha,surface soil(0-20 cm) samples of vegetable fields,orchard and paddy soil were collected,soil profile(20-40cm,40-60cm) of Baiyun and Panyu were also collected,in Aug,2008.Gas chromatography-electron capture detector method(GC-ECD)was used to determine 17 kinds of organochlorine pesticides.Results The detection rate of 17 kinds of organochlorine pesticides was 90.59% in topsoil,the residue level was 4.19-39.89 ng/g,and the detection rate in profiles soil was 76.70 %,the residue level was 2.35-91.26 ng/g.OCPs residues were mainly HCHs and DDTs.Conclusion Detection rate of organochlorine pesticides is high in soil in the investigated soil and in the 20-40 cm profiles of Baiyun and Panyu,the level of OCPs exceeds the related standard limit,which may have adverse effects on soil environment.
