| 漓江桂林市区段表层沉积物有机氯农药分布特征 |
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| 引用本文： | 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. |
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| 作者姓名： | 王英辉 薛瑞 李杰 朱红祥 徐以印 李平阳 郭送军 |
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| 作者单位： | 1. 广西大学环境学院,广西南宁,530004
2. 广西地质勘查总院,广西南宁,530022 |
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| 基金项目： | 国家自然科学基金资助项目(41073104); 国家“863”项目(2009AA06A416); 广西北部湾经济区基础研究重大专项(2010GXNSFE013006); 广西青年科学基金(桂青科[02228098]) |
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| 摘 要： | 对漓江桂林市区段沉积物中有机氯农药分析结果表明,沉积物中总OCPs为0.94~56.68ng/g(平均值13.77ng/g),在国内处于中等水平.上游蚂蝗洲附近和下游瓦窑受有机氯农药污染最为严重,中游河段污染较轻.18种检出的有机氯农药中,六氯苯含量最高,其次为HCHs,这与当地使用历史有关.(DDE＋DDD)/DDT比值(平均值为2.79)表明DDT降解比较完全,DDE/DDD比值说明沉积物降解主要发生在厌氧条件下.同分异构体比例分析说明漓江市区河段HCH类农药以历史残留为主,而蚂蝗洲附近有大量林丹输入,需引起相关部门重视.
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| 关 键 词： | 漓江 表层沉积物 OCPs DDTs HCHs |
| 收稿时间： | 2010-11-20; |
Distribution characteristic of organochlorine pesticides in surface sediments from Lijiang,Guilin City,South China |
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| 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[J].China Environmental Science,2011,31(8):1361-1365. |
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| Authors: | WANG Ying-hui XUE Rui LI Jie ZHU Hong-xiang XU Yi-yin LI Ping-yang GUO Song-jun |
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| Institution: | WANG Ying-hui1,XUE Rui1,LI Jie3,ZHU Hong-xiang1,XU Yi-yin1,LI Ping-yang1,GUO Song-jun1(1.School of Environmental Studies,Guangxi University,Nanning 530004,China,2.Guangxi Geological Exploration General Institute,Nanning 530022,China) |
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| 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 ... |
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| Keywords: | Lijiang surface sediment organochlorine pesticides(OCPs) HCHs DDTs |
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