Polychlorinated dibenzo-p-dioxins and dibenzofurans pollution in China: Sources, environmental levels and potential human health impacts

Gene J. ZHENG, Anna O. W. LEUNG, Li Ping JIAO, Ming Hung WONG

Research output: Contribution to journalArticles

103 Citations (Scopus)

Abstract

This review represents an assessment of the pollution status of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in China (the mainland, Hong Kong and Taiwan). During the past decades, seven PCDD/Fs pollution hotspots have been found: (a). Ya-er Lake, Hubei Province, with 'total PCDD/Fs' level reaching 177,427 pg g⁻¹ (dry weight) in lake sediments; (b). Chinese Schistosomiasis affected areas of Jiangxi Province with 33,660 pg g⁻¹ in soil; (c). e-waste recycling area of Yangtze River Delta, with 2726 pg g⁻¹ in paddy soil; (d). e-waste recycling area of Guiyu (eastern part of Guangdong Province), with 967,500 pg g⁻¹ in mixture of burnt residue and soil (the highest level among all hotspots); (e). Pearl River Delta with 2630 pg g⁻¹ in coastal sediment. (f). Kwun Tong, Victoria Harbour, Hong Kong with 10,999 pg g⁻¹ in coastal sediment; and (g). southern Taiwan with 606,000 pg g⁻¹ in soil near the vicinity of a pentachlorophenol manufacturing factory. The main sources of PCDD/Fs in China were formed from impurities during the production of polychlorophenol, hexachlorobenzene, polychlorinated biphenyls, organic chlorinated pesticide and triclosan. In addition, sources of PCDD/Fs included municipal waste incineration, mineral fuel usage, open burning of electronic waste and crop residues, industrial waste discharge and vehicle exhaust emission. Due to potential human health risks from long-term exposure to PCDD/Fs at these hotspots, body loadings of these contaminants should be monitored. Copyright © 2008 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)1050-1061
JournalEnvironment International
Volume34
Issue number7
DOIs
Publication statusPublished - Oct 2008

Citation

Zheng, G. J., Leung, A. O. W., Jiao, L. P., & Wong, M. H. (2008). Polychlorinated dibenzo-p-dioxins and dibenzofurans pollution in China: Sources, environmental levels and potential human health impacts. Environment International, 34(7), 1050-1061. doi: 10.1016/j.envint.2008.02.011

Keywords

  • PCDD/Fs
  • Polychlorophenols
  • Schistosomiasis
  • Incineration
  • China mainland
  • Hong Kong and Taiwan

Fingerprint Dive into the research topics of 'Polychlorinated dibenzo-p-dioxins and dibenzofurans pollution in China: Sources, environmental levels and potential human health impacts'. Together they form a unique fingerprint.