Trace organic contamination in biota collected from the Pearl River Estuary, China: A preliminary risk assessment

S. WEI, R. K. F. LAU, C. N. FUNG, G. J. ZHENG, Chung Wah James LAM, D. W. CONNELL, Z. FANG, B. J. RICHARDSON, P. K. S. LAM

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Abstract

The marine ecosystem of the Pearl River Delta, located on the southern coast of China, has been heavily exploited following the rapid economic growth that has occurred since the 1980s. This investigation aimed to elucidate trace organic contamination in marine biota inhabiting the Pearl River Delta area. Biota samples, including green-lipped mussels (Perna viridis), oysters (Crassostrea rivularis) and shrimp (Penaeus orientalis) were sampled from 16 stations fringing the Estuary. Elevated concentrations (on a dry weight basis) of polycyclic aromatic hydrocarbons (27.8–1041.0 ng/g), petroleum hydrocarbons (1.7–2345.4 μg/g), polychlorinated biphenyls (2.1–108.8 ng/g), DDTs (1.9–79.0 ng/g), and hexachlorocyclohexanes (n.d.–38.4 ng/g) were recorded. A human health risk assessment was conducted to estimate the risk to local residents associated with the consumption of biota collected from the Pearl River Estuary. The results indicated that PCBs were at levels that may cause deleterious health effects in populations that consume large amounts of seafood. However, it would be instructive to establish health criteria for trace organic contaminants that are specific to the local populations, in order to derive a more accurate and relevant health risk assessment. Copyright © 2006 Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)1682-1694
JournalMarine Pollution Bulletin
Volume52
Issue number12
DOIs
Publication statusPublished - Dec 2006

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Estuaries
Risk assessment
risk assessment
biota
Contamination
estuaries
Health risks
Rivers
estuary
Polychlorinated biphenyls
health risk
Crassostrea rivularis
China
PCB
organisms
Health
river
Perna canaliculus
Fenneropenaeus chinensis
Perna viridis

Bibliographical note

Wei, S., Lau, R. K. F., Fung, C. N., Zheng, G. J., Lam, J. C. W., Connell, D. W., . . . Lam, P. K. S. (2006). Trace organic contamination in biota collected from the Pearl River Estuary, China: A preliminary risk assessment. Marine Pollution Bulletin, 52(12), 1682-1694. doi: 10.1016/j.marpolbul.2006.06.009

Keywords

  • Pearl River Delta
  • Trace organic contamination
  • Biota
  • Health risks
  • Seafood consumers