Abstract:The concentrations of 19 organochlorine pesticides (OCPs) in the surface sediments from Lijiang, Guilin City, South China were determined by GC-ECD. The total concentrations of OCPs were 0.94~56.68ng/g (mean value 13.77ng/g), showing a middle content level compared with other areas in China. The highest concentrations of OCPs were found at sampling sites collected from Mahuang Continent (on the upriver) and Wayao (on the downriver). Among 19 kinds of OCPs, the highest concentration was HCB, followed by HCHs, which were corresponding to the local usage history. The ratio of DDD+DDE/DDT suggested that DDT had been micro-biologically degraded well; DDE/DDD ratio implied a domination of anaerobic condition in sediments from Lijiang. HCHs were mainly come from aged residue. There was mass lindane introduced to the Mahuang Continent which should be given more attention.
王英辉, 薛瑞, 李杰, 朱红祥, 徐以印, 李平阳, 郭送军. 漓江桂林市区段表层沉积物有机氯农药分布特征[J]. 中国环境科学, 2011, 31(8): 1361-1365.
WANG Ying-Hui, XUE Rui, LI Jie, ZHU Hong-Xiang, XU Yi-Yin, LI Ping-Yang, GUO Song-Jun. Distribution characteristic of organochlorine pesticides in surface sediments from Lijiang,Guilin City, South China. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(8): 1361-1365.