Transport and fate of organochlorine pesticides in the River Wuchuan, Southeast China

Zhang, Z; Hong, H; Zhou, JL; Yu, G; Chen, W; Wang, X

Transport and fate of organochlorine pesticides in the River Wuchuan, Southeast China

Zhang, Z Hong, H Zhou, JL

Yu, G Chen, W Wang, X

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Publication Type:: Journal Article
Citation:: Journal of Environmental Monitoring, 2002, 4 (3), pp. 435 - 441
Issue Date:: 2002-01-01

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Field	Value	Language
dc.contributor.author	Zhang, Z	en_US
dc.contributor.author	Hong, H	en_US
dc.contributor.author	Zhou, JL https://orcid.org/0000-0003-1393-1608	en_US
dc.contributor.author	Yu, G	en_US
dc.contributor.author	Chen, W	en_US
dc.contributor.author	Wang, X	en_US
dc.date.issued	2002-01-01	en_US
dc.identifier.citation	Journal of Environmental Monitoring, 2002, 4 (3), pp. 435 - 441	en_US
dc.identifier.issn	1464-0325	en_US
dc.identifier.uri	http://hdl.handle.net/10453/33815
dc.description.abstract	Persistent organic pollutants (POPs) such as chlorinated pesticides are of global concern due to their widespread occurrence, persistence, bioaccumulation and toxicity to animals and human. This paper summarises recent research on 18 chlorinated pesticides in an important catchment in China, by determining their concentrations and behaviour in water, sediment, soil and plants. The concentrations of the total pesticides were in the ranges 187-893 ng 1-1 in river water, 8.53-210 ng g-1 dry weight in soil, 2.66-13.45 ng g-1 dry weight in river sediment, and 651-2823 ng g-1 dry weight in plants. The predominance of β-HCH as the major isomer of HCHs in all water, soil, sediment and plant samples was clearly observed, due to β-HCH's resistance to biodegradation. On average β-HCH accounted for 44%, 53%, 50%, and 46% of the total HCH concentration in water, soil, sediment and plant, respectively. Of the DDTs, DDE accounted for 48%, 43%, 53%, 55% of the total DDT, which suggested that DDT had been transformed to its metabolites, DDE and DDD, of which DDE was the more stable. The chlorinated pesticide levels in the River Wuchuan were generally below the guideline values in China, but some sites displayed levels in excess of EC Environmental Quality Standards for HCHs and DDTs. The results therefore provide important information on the current contamination status of a key agricultural watershed in China, and point to the need for urgent actions to evaluate the long-term fate and toxicity of such persistent compounds and an appropriate remediation strategy.	en_US
dc.relation.ispartof	Journal of Environmental Monitoring	en_US
dc.relation.isbasedon	10.1039/b111204j	en_US
dc.subject.classification	Environmental Sciences	en_US
dc.subject.mesh	Plants	en_US
dc.subject.mesh	Dichlorodiphenyl Dichloroethylene	en_US
dc.subject.mesh	DDT	en_US
dc.subject.mesh	Biodegradation, Environmental	en_US
dc.subject.mesh	China	en_US
dc.subject.mesh	Environmental Monitoring	en_US
dc.subject.mesh	Geologic Sediments	en_US
dc.subject.mesh	Hexachlorocyclohexane	en_US
dc.subject.mesh	Insecticides	en_US
dc.subject.mesh	Water Movements	en_US
dc.subject.mesh	Water Pollutants, Chemical	en_US
dc.title	Transport and fate of organochlorine pesticides in the River Wuchuan, Southeast China	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	4	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	05 Environmental Sciences	en_US
utslib.for	11 Medical and Health Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access
pubs.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	4	en_US

Abstract:

Persistent organic pollutants (POPs) such as chlorinated pesticides are of global concern due to their widespread occurrence, persistence, bioaccumulation and toxicity to animals and human. This paper summarises recent research on 18 chlorinated pesticides in an important catchment in China, by determining their concentrations and behaviour in water, sediment, soil and plants. The concentrations of the total pesticides were in the ranges 187-893 ng 1-1 in river water, 8.53-210 ng g-1 dry weight in soil, 2.66-13.45 ng g-1 dry weight in river sediment, and 651-2823 ng g-1 dry weight in plants. The predominance of β-HCH as the major isomer of HCHs in all water, soil, sediment and plant samples was clearly observed, due to β-HCH's resistance to biodegradation. On average β-HCH accounted for 44%, 53%, 50%, and 46% of the total HCH concentration in water, soil, sediment and plant, respectively. Of the DDTs, DDE accounted for 48%, 43%, 53%, 55% of the total DDT, which suggested that DDT had been transformed to its metabolites, DDE and DDD, of which DDE was the more stable. The chlorinated pesticide levels in the River Wuchuan were generally below the guideline values in China, but some sites displayed levels in excess of EC Environmental Quality Standards for HCHs and DDTs. The results therefore provide important information on the current contamination status of a key agricultural watershed in China, and point to the need for urgent actions to evaluate the long-term fate and toxicity of such persistent compounds and an appropriate remediation strategy.

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http://hdl.handle.net/10453/33815