Heavy metal concentrations in green-lipped mussels collected from Tolo Harbour and markets in Hong Kong and Shenzhen

C. K. C. WONG, R. Y. H. CHEUNG, Ming Hung WONG

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48 Citations (Scopus)

Abstract

Green-lipped mussels, Perna viridis, were collected from Kat O, Yim Tin Tsai, Ma Liu Shui and Tap Mun around Tolo Harbour and six local markets in Hong Kong (Aberdeen, Shau Kei Wan, Kowloon City, Mongkok, Yuen Long) and Shenzhen (Dongmun) between July 1994 and February 1995 and analysed for cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni), lead (Pb) and zinc (Zn). The metal concentrations of mussels collected from the study sites were Cd (0.45-1.44 μg/g), Cr (0.82-4.89 μg/g), Cu (6.02-23.99 μg/g), Ni (3.25-6.87 μg/g), Pb (2.02-4.36 μg/g) and Zn (90-135 μg/g), while those from the markets were Cd (0.27-1.44 μg/g), Cr (1.09-3.30 μg/g), Cu (9.05-17.8 μg/g), Ni (2.44-5.25 μg/g), Pb (1.17-5 μg/g) and Zn (51-103 μg/g). The metal concentrations were below the maximum permissible levels set by the Hong Kong Government. In addition, seasonal variation of metal accumulation in mussels was investigated in Yim Tin Tsai and Ma Liu Shui and a reduction in the total heavy metal concentrations during winter was noted. The non-carcinogenic hazard index of mussels collected from Tolo Harbour and from Hong Kong markets was between 0.46 and 1.36 compared with those from Shenzhen markets (0.85-1.46), which indicated a low but possible risk in consuming the mussels. Copyright © 2000 Elsevier Science Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)165-171
JournalEnvironmental Pollution
Volume109
Issue number1
DOIs
Publication statusPublished - Jul 2000

Citation

Wong, C. K. C., Cheung, R. Y. H., & Wong, M. H. (2000). Heavy metal concentrations in green-lipped mussels collected from Tolo Harbour and markets in Hong Kong and Shenzhen. Environmental Pollution, 109(1), 165-171. doi: 10.1016/S0269-7491(99)00223-7

Keywords

  • Non-carcinogenic hazard index
  • Seasonal variation
  • South China Sea
  • Cadmium
  • Chromium
  • Lead

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