Lab. de Oceanografia Química, Instituto de Química, UFBA, INCT de Energia e Ambiente, Salvador, BA, Brazil.
Mar Pollut Bull. 2011 Oct;62(10):2254-63. doi: 10.1016/j.marpolbul.2011.07.010. Epub 2011 Jul 30.
This study determined the concentrations of major and trace elements in shellfish (oysters, clams and mussels) and conducted an assessment of the health risks due to the consumption of contaminated seafood. Samples were collected at 34 sites along Todos os Santos Bay, Brazil. The elements were determined by ICP OES and Hg by Direct Mercury Analysis. Relatively high concentrations of trace elements (As, Zn, Se and Cu) were found in seafood tissues. Potential daily intake of As, Co, Se, Zn and Cu associated to shellfish consumption suggested relevant non-carcinogenic risk for all studied locations. Copper was the element that posed the greatest non-carcinogenic risk, while Pb posed the highest carcinogenic risk. Health risks for humans were greatest from the consumption of mussels. Contaminated shellfish offer the greatest risk for children, subsistence fishers and subsistence shellfish consumers.
本研究测定了贝类（牡蛎、蛤和贻贝）中的常量和微量元素浓度，并评估了食用受污染海鲜导致的健康风险。在巴西 Todos os Santos 湾的 34 个地点采集了样本。通过电感耦合等离子体发射光谱法（ICP OES）和直接汞分析（Direct Mercury Analysis）测定了这些元素。海产品组织中发现了相对较高浓度的微量元素（砷、锌、硒和铜）。与贝类消费相关的砷、钴、硒、锌和铜的潜在日摄入量表明，所有研究地点都存在相关的非致癌风险。铜是造成最大非致癌风险的元素，而铅则造成最高的致癌风险。食用贻贝对人类造成的健康风险最大。受污染的贝类对儿童、生计渔民和生计贝类消费者构成最大风险。
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