Heavy Metal Contamination in the Cultivated Oyster Crassostrea rivularis and Associated Health Risks from a Typical Mariculture Zone in the South China Sea

Heavy Metal Contamination in the Cultivated Oyster Crassostrea rivularis and Associated Health... With the rapid development of mariculture in potentially contaminated regions in China and the world, food safety, is a growing concern. To evaluate heavy metals and their associated health risks in the cultivated oyster Crassostrea rivularis, the concentrations of heavy metals (Cd, Cr, Pb, Zn) in oysters and water/sediment were examined in a typical mariculture environment (Kaozhou Bay, South China Sea). Trends in the seasonal dynamics of heavy metals in oysters revealed a potential synergistic effects among the concentrations of Cd, Cr, and Zn; trends associated with Pb were less clear, although the ability of oysters to bioaccumulate and depurate Pb was excellent. Bioconcentration factors (BCF) indicated that C. rivularis has 5 4 a strong ability to accumulate heavy metals, and the BCF was the highest for Zn (2.32 × 10 ), followed by Cd (6.84 × 10 ), 4 3 Pb (2.77 × 10 ) and Cr (1.23 × 10 ) through the four seasons. Results showed that Cd concentrations in oysters could pose a risk to human health (HQ > 1). This study, therefore, suggests that there are potential human health risks due to heavy metal exposure through the consumption of C. rivularis from mariculture zones in http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bulletin of Environmental Contamination and Toxicology Springer Journals

Heavy Metal Contamination in the Cultivated Oyster Crassostrea rivularis and Associated Health Risks from a Typical Mariculture Zone in the South China Sea

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Publisher
Springer US
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Environment; Pollution, general; Environmental Health; Ecotoxicology; Soil Science & Conservation; Environmental Chemistry; Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution
ISSN
0007-4861
eISSN
1432-0800
D.O.I.
10.1007/s00128-018-2360-2
Publisher site
See Article on Publisher Site

Abstract

With the rapid development of mariculture in potentially contaminated regions in China and the world, food safety, is a growing concern. To evaluate heavy metals and their associated health risks in the cultivated oyster Crassostrea rivularis, the concentrations of heavy metals (Cd, Cr, Pb, Zn) in oysters and water/sediment were examined in a typical mariculture environment (Kaozhou Bay, South China Sea). Trends in the seasonal dynamics of heavy metals in oysters revealed a potential synergistic effects among the concentrations of Cd, Cr, and Zn; trends associated with Pb were less clear, although the ability of oysters to bioaccumulate and depurate Pb was excellent. Bioconcentration factors (BCF) indicated that C. rivularis has 5 4 a strong ability to accumulate heavy metals, and the BCF was the highest for Zn (2.32 × 10 ), followed by Cd (6.84 × 10 ), 4 3 Pb (2.77 × 10 ) and Cr (1.23 × 10 ) through the four seasons. Results showed that Cd concentrations in oysters could pose a risk to human health (HQ > 1). This study, therefore, suggests that there are potential human health risks due to heavy metal exposure through the consumption of C. rivularis from mariculture zones in

Journal

Bulletin of Environmental Contamination and ToxicologySpringer Journals

Published: May 31, 2018

References

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