重庆老龙洞地下河流域水体有机氯农药污染及来源初步研究  

Preliminary study on OCPs in water body of the Laolongdong underground river basin in Chongqing

作　　者：徐昕[1] 孙玉川[1] Md.Jahangir Alam 

机构地区：[1]西南大学地理科学学院/三峡库区生态环境教育部重点实验室,重庆400715

出　　处：《中国岩溶》2013年第2期189-194,共6页Carsologica Sinica

基　　金：国家自然科学基金(41072192);国家自然科学基金(41040026);重庆市科委院士基金[CSTC;2010BC7004(2010-2012)]

摘　　要：为查明重庆老龙洞地下河流域有机氯农药的污染情况及其特征和来源,通过气相色谱-微池电子捕获检测器(GC-μECD)检测水体OCPs含量。结果表明研究区水样中受到了有机氯农药不同程度的污染。α-HCH是研究区水体HCHs主要成分,HCHs的残留主要来自于大气长距离传输。DDTs的主要成分各采样点不尽相同。DDTs的输入为历史上工业DDTs的使用且在水体中其主要以好氧转化为主。与国内外河流相比较,老龙洞地下河流域水体有机氯农药含量处于较高水平。In order to study the OCPs in water tion of OCPs residues in the water sample are body of the Laolongdong underground river basin, concentra- measured by gas chromatography equipped with micro-63 Ni electron capture detector. The results show that the a-HCH is the main ingredients of HCHs in water body of the Laolongdong underground river basin. The HCHs mainly comes from the atmospheric transmission. The essential component of DDTs is different：with each other among the sampling sites. The historical usage of technical DDTs may cause DDTs pollution, and DDT was dechlorinated under aerobic conditions DDTs. Comparing with other rivers at home and abroad the OCPs content in the water body of the Laolongdong underground river is in higher level.

关 键 词：有机氯农药 岩溶区 HCHS DDTS 老龙洞地下河 重庆 

分 类 号：X523[环境科学与工程—环境工程]