Assessment of heavy metals/metalloid (As,Pb, Cd,Ni, Zn,Cr, Cu,Mn) concentrations in edible fish species tissue in the Pearl River Delta (PRD), China |
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| Institution: | 1. Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region, PR China;2. Department of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China;3. School of Science and Technology, The Open University of Hong Kong, Hong Kong Special Administrative Region, PR China;4. Department of Applied Sciences, Institute of Vocational Education (Chai Wan), Hong Kong Special Administrative Region, PR China;5. Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region, PR China |
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| Abstract: | The major aim of this study was to investigate heavy metal content of edible fish in the PRD. Eleven species of fish (consisting of 711 individuals) catfish (Clarias fuscus), tilapia (Oreochromis mossambicus), grass carp (Ctenopharyngodon idellus), bighead carp (Aristichthys nobilis), mandarin fish (Siniperca kneri), snakehead (Channa asiatiea), black bass (Micropterus salmoides), mangrove snapper (Lutjanus griseus), star snapper (Lutjanu stellatus), snubnose pompano (Trachinotus blochii) and orange-spotted grouper (Epinephelus coioides)] were collected for the analyses of heavy metals. Overall concentrations (mg/kg, ww) in the fish muscles were: As (0.03–1.53), Pb (0.03–8.62), Cd (0.02–0.06), Ni (0.44–9.75), Zn (15.7–29.5), Cr (0.22–0.65), Cu (0.79–2.26), Mn (0.82–6.91). Significant level of Pb were found in tilapia at all locations. It is recommended that heavy metal concentrations in different fish species must be determined on a regular basis in the future so as to reduce human health risks from acute and chronic food intoxication. |
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| Keywords: | Heavy metals Metalloid Fish Fish muscle Pearl River Delta |
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