Contamination by Organochlorine Pesticides in the Estuaries of Southeast China* 06 A

Chemical Research in Chinese Universities ›› 2002, Vol. 18 ›› Issue (2): 153-160.

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Contamination by Organochlorine Pesticides in the Estuaries of Southeast China* 06 A

Z. L. Zhang^1,2, H. S. Hong², J. L. Zhou³, M. H. Dai², K. Maskaouib², W. Q. Chen²

1. Department of Environmental Science and Engineering, Tsinghua POPs Research Centre, Tsinghua University, Beijing 100084, China;
2. Key Laboratory of Marine Environmental Science of Ministry of Education, Environmental Science Research Centre, Xiamen Universit;
3. School of Chemistry, Physics and Environmental Science, University of Sussex, Falmer, Brighton BN1 9QJ, UK

Received:2001-12-14 Online:2002-04-24 Published:2011-08-04
Supported by:
Supported by the National Natural Science Foundation(NNSFC) and Ministry of Education, China, and China Bridge International(CBI) in USA.

Abstract

Abstract: Persistent organic pollutants(POPs) such as organochlorine pesticides are of global concern due to their widespread occurrence and persistence. This paper reports recent research studying the distribution and fate of organochlorine pesticides in the Jiulong River, the Minjiang River and the Pearl River estuaries in Southeast China. Eighteen organochlorine pesticides were extracted from water, pore water and sediment samples, followed by analysis by GC-ECD. The results showed that the contamination levels were similar in these three estuaries.The levels of the total organochlorine pesticides in porewater were significantly higher than those in surface water, due to the high affinity of these hydrophobic compounds for sediment phase. Among the hexachlorocyclohexane (HCH) compounds, β-HCH was found to be the most important isomer. The analysis of 1, 1,1-trichloro-2,2-bis-chlorophenyl-ethane(DDT) and its metabolites showed that 1, 1-dichloro-2[o-chlorophenyl]-2[p-chlorophenyl]-ethylene (DDE) was dominant in the group.Koywords Organochlorine insecticides, DDT, Lindane, Jiulong River Estuary, Minjiang River Estuary, Pearl River Estuary, Water, Sediment

Key words: Organochlorine insecticides, DDT Lindane, Jiulong River Estuary, Minjiang River Estuary, Pearl River Estuary, Water, Sediment

Z. L. Zhang, H. S. Hong, J. L. Zhou, M. H. Dai, K. Maskaouib, W. Q. Chen. Contamination by Organochlorine Pesticides in the Estuaries of Southeast China* 06 A[J]. Chemical Research in Chinese Universities, 2002, 18(2): 153-160.

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Contamination by Organochlorine Pesticides in the Estuaries of Southeast China* 06 A

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