| 重庆典型岩溶区地下河表层沉积物OCPs初步研究 |
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| 引用本文： | 杨梅,蒲俊兵,张俊鹏,扈志勇.重庆典型岩溶区地下河表层沉积物OCPs初步研究[J].环境工程学报,2009,3(7):1340-1344. |
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| 作者姓名： | 杨梅 蒲俊兵 张俊鹏 扈志勇 |
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| 作者单位： | 1. 西南大学地理科学学院,重庆,400715
2. 中国地质大学环境学院,武汉,430074 |
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| 基金项目： | 重庆市科委院士专项基金资助项目(CSTC2007BC7001)；国家自然科学基金资助项目(40672165) |
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| 摘 要： | 利用GC-ECD对重庆典型岩溶区地下河表层沉积物中19种有机氯农药进行分析，结果表明，研究区总有机氯农药浓度为4.73～286.03 ng/g，DDTs浓度为0.35～181.78 ng/g，HCHs浓度为nd～23.53 ng/g。与国内外其他河流表层沉积物有机氯农药相比为高，说明重庆典型岩溶区地下河已处于较高污染状态。统计DDE/DDD发现，除姜家溶洞外，其他取样点DDE/DDD均大于1，表明研究区DDT降解主要在好氧环境中进行。除靛水地下河，其他取样点表层沉积物(DDD+DDE)/DDT均大于0.5，表明这些地区近年来没有新的DDT类农药输入。
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| 关 键 词： | 重庆 地下河 表层沉积物 OCPs |
A preliminary study of OCPs in underground river surface sediments from Chongqing typical karst areas |
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| Yang Mei,Pu Junbing,Zhang Junpeng and Hu Zhiyong.A preliminary study of OCPs in underground river surface sediments from Chongqing typical karst areas[J].Techniques and Equipment for Environmental Pollution Control,2009,3(7):1340-1344. |
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| Authors: | Yang Mei Pu Junbing Zhang Junpeng and Hu Zhiyong |
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| Institution: | College of Geographic Science,Southwest University,Chongqing 400715,China,College of Geographic Science,Southwest University,Chongqing 400715,China,College of Environment,China University of Geosciences,Wuhan 430074,China and College of Geographic Science,Southwest University,Chongqing 400715,China |
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| Abstract: | 19 kinds of organochlorine pesticides(OCPs)in surface sediments of Chongqing karst areas were analyzed by GC-ECD.The total concentration range of OCPs was 4.73~286.03 ng/g,the concentration range of DDTs was 0.35~181.78 ng/g and the concentration range of HCHs was nd~23.53 ng/g.Compared with other rivers,the organchlorine pesticides in sediments of Chongqing typical karst areas is in the high level.DDE/DDD demonstrates DDT degraded in the aerobic environment except Jiangjiarongdong.(DDD+DDE)/DDTs shows no n... |
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| Keywords: | OCPs |
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