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Passive air sampling of DDT, chlordane and HCB in the Pearl River Delta, South China : implications to regional sources.

Wang, Jun and Guo, Lingli and Zhang, Jun and Lee, Celine S. L. and Li, Xiangdong and Jones, Kevin C. and Xiang, Yunrong and Zhong, Liuju (2007) Passive air sampling of DDT, chlordane and HCB in the Pearl River Delta, South China : implications to regional sources. Journal of Environmental Monitoring, 9 (6). pp. 582-588. ISSN 1464-0325

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Abstract

The Pearl River Delta (PRD) is one of the largest fast-developing economic zones in China. Hong Kong and the mainland part of the PRD differed in socio-economic development history and chemical management policies. Polyurethane foam (PUF)-passive air sampling (PAS) was deployed at 21 regional air quality monitoring stations across the PRD in summer and winter, respectively. Dichloro-diphenyl-trichloroethane (DDT), chlordane and hexachlorobenzene (HCB) were analyzed with GC-MS. High total DDT (240–3700 pg m–3) and chlordane (100–2600 pg m–3) concentrations were observed. Concentrations of DDTs and chlordane were higher in summer than winter; HCB vice versa. Spatially, the mainland part of the PRD generally displayed higher DDT concentrations than Hong Kong. Antifouling paint for fishing ships in coastal China was suggested to be an important current DDT source in the coast. The reason is unknown for the very low trans-/cis-chlordane (TC/CC) ratios (0.27) found in the mainland in winter. HCB concentrations were relatively uniform across the PRD, and long range transport of HCB from inland/North China to the PRD in winter was suggested.

Item Type: Article
Journal or Publication Title: Journal of Environmental Monitoring
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 28053
Deposited By: Mr Richard Ingham
Deposited On: 02 Nov 2009 15:55
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 16:43
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/28053

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