柳州岩溶地下河水体有机氯农药分布特征

韦丽丽; 郭 芳; 王健哲; 康彩霞

doi:10.3969/j.issn.1001-4810.2011.01.003

柳州岩溶地下河水体有机氯农药分布特征

doi: 10.3969/j.issn.1001-4810.2011.01.003

1.
西南大学地理科学学院；中国地质科学院岩溶地质研究所、国土资源部岩溶动力学重点实验室
2.
中国地质科学院岩溶地质研究所、国土资源部岩溶动力学重点实验室
3.
中国地质大学环境学院
4.
桂林理工大学环境科学与工程学院

基金项目: 中国地质科学院岩溶地质研究所所控项目(2009001)、广西基金(桂科青0991096)

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出版历程
- 收稿日期: 2010-11-10
- 发布日期: 2011-03-25

Distribution characteristics of organochlorine pesticides in karst subterranean river in Liuzhou

1.
Schoolof Geographical Sciences,Southwest University；Instituteof Karst Geology,CAGS, Karst Dynamics Laboratory, MLR
2.
Instituteof Karst Geology,CAGS, Karst Dynamics Laboratory, MLR
3.
Collegeof Environment,China University of Geosciences
4.
Guilin University of Technology College of Environ mental Science and Engineering

摘要

摘要: 采用气相色谱(配ECD检测器)对柳州鸡喇和龙寨两条岩溶地下河不同位置水体中18种有机氯农药(OCPs)组分进行分析。结果表明,除异狄氏剂醛外,其余17种OCPs均有不同程度检出,OCPs浓度变化范围为107.68～1101.55ng/L,均值为532.515ng/L。OCPs主要组分为:α-HCH、β-HCH、γ-HCH、δ-HCH、p,p'-DDE、o,p'-DDT、p,p'-DDD、p,p'-DDT、六氯苯、七氯、艾氏剂。其中DDTs和HCHs含量最高,二者之和占到总OCPs的75.8%～96%。对其污染源进行分析,发现地下河水体中DDTs主要源自土壤。HCHs来源相对复杂,可能源于工业品或者长距离大气运输,也可能是近期有林丹的输入使其浓度增高。与国内外各水体相比,本次研究的两条岩溶地下河有机氯农药含量相对较高。
- 岩溶地下河 /
- 有机氯农药污染 /
- 分布特征 /
- 广西柳州
Abstract: Water samples collected from different positions of two subterranean rivers in Liuzhou Karst Area are tested for18 kinds of organochlorine pesticides(OCPs)by gas chromatography coupled with an electron capture detect(GC/ECD).The results show that except dieldrin aldehyde,17 kinds of OCPs are detected in different levels and the OCPs concentration range from107.68 to1101.55ng/L, with a mean value532.515ng/L. Main OCPs are α-HCH,β-HCH,γ-HCH,δ-HCH,p,p'-DDE,o,p'-DDT,p,p'-DDD,p,p'-DDT,HCB, Heptachlor, Aldrin. Content of the DDTs is the highest. H C Hs and OCPs accountfor75.8%～96% of the total. Meanwhile, the origins of organochlorinated pesticides in the water are investigated. DD Ts mainly comes from soils. H C Hs source is relatively complex, probably originated from industry or long atmospheric transport. Recently use of lindane can also make H C Hsinputconcentrationincrease.Com paring concentration of OCPs in different kinds of water from the world, organochlorine pesticides content is relatively at high level in these two karst underground rivers.
- karst subterranean river /
- organochlorine pesticides pollution /
- distribution characteristics /
- Liuzhou, Guangxi

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