环境保护科学2012，Vol.38Issue(2)：9-12,4.
漓江沉积柱芯有机氯农药垂向分布特征与来源
Distribution Characteristics and Sources of Organochlorine Pesticides in Sediment Cores of Lijiang River
摘要
Abstract
The contents of 19 kinds of organochlorine pesticides (OCPs) in two sediment cores of Lijiang River, Guilin city, were determined using GC-ECD. The total concentration of OCPs was in the range of 4.75 ~ 489.4ng/g ( mean 43.26ng/g ) , showing a middle pollution level in China.OCPs and HCHs showed higher contents in the downriver of Lijiang River than those in upriver, while DDTs were opposite, which caused by mass restaurants locating near the Mahuang Continent (sampling site on the upriver). Down-core concentrations showed Lijiang River was influenced by anthropogenic pollution.In general, pollution level of HCHs was higher than that of DDTs in sediments, in accordance with the local pesticides usage history. The isomer ratios showed that DDT were aged residue and had been microbially degraded well with a domination of anaerobic condition. Local Dicofol application could not be proved.Industrial BHC in sediments had not completely degraded and lindane might be introduced around .关键词
有机氯农药/漓江/沉积柱芯/分布/来源Key words
Organochlorine Pesticides (OCPs)/ Lijiang River/ Sediment Core/ Distribution/ Sources分类
资源环境引用本文复制引用
杨惟薇,李平阳,冷冰,薛瑞,董海丽,王英辉,战明国..漓江沉积柱芯有机氯农药垂向分布特征与来源[J].环境保护科学,2012,38(2):9-12,4.基金项目
国家自然基金(41073104) （41073104）
广西北部湾经济区基础研究重大专项(2010GXNSFE013006) （2010GXNSFE013006）
广西青年科学基金(桂青科[02228098]) （桂青科[02228098]）
教育部重点项目(210161) （210161）
