Metals in Fishes from Yongshu Island, Southern South China Sea: Human Health Risk Assessment.
Metals in Fishes from Yongshu Island, Southern South China Sea: Human Health Risk Assessment.
复制标题
南海南部永暑岛鱼类中的金属：人类健康风险评估
DOI：
10.1155/2017/2458293
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发表时间：
2017
影响因子：
2.9
通讯作者：
Ke H
中科院分区：
文献类型：
--
作者：
Wu Z;Xu Y;Cai M;Cheng SY;Chen H;Huang D;Chen K;Lin Y;Li T;Liu M;Deng H;Ni M;Ke H
为了评价南海永暑岛4种鱼类体内金属的生物积累与性别、组织的关系及其潜在的生态风险。测定了其组织（肌肉、鳃、肝脏、肠和卵巢）中的金属和稳定铅同位素。各树种金属含量（mg/kg，干重）分别为ND-21.60 （Cd）、1.21-4.87 （Cr）、0.42-22.4 （Cu）、1.01-51.8 （Mn）、0.30-3.28 （Ni）、6.04-1.29 × 103 （Zn）、14.89-1.40 × 103 （Fe）和0.22-3.36 （Pb）。一般来说，肝脏和肠道比其他组织吸收更多的金属。金属的积累可能受到性别和摄食行为的影响，事实上，雌性鱼类和饮食接触更容易积累金属。此外，Pb同位素比值表明，所有物种都有显著的生物分馏，这可能不适合作为来源鉴定的示踪剂。大多数样品的金属浓度低于粮农组织（美国）的国家标准值，这表明人类食用这些物种可能不会造成健康风险。然而，随着周边地区的快速发展，金属潜在的环境风险将会加剧，应该得到更多的关注。
In order to assess the bioaccumulation of metals associated with gender, tissues, and their potential ecological risk, four species of fish were collected from the Yongshu Island in the Southern South China Sea. Metals and stable Pb isotopes in their tissues (muscle, gill, liver, intestine, and ovary) were determined. The concentrations of metals (mg/kg, dry weight) in these species were ND–21.60 (Cd), 1.21–4.87 (Cr), 0.42–22.4 (Cu), 1.01–51.8 (Mn), 0.30–3.28 (Ni), 6.04–1.29 × 103 (Zn), 14.89–1.40 × 103 (Fe), and 0.22–3.36 (Pb). In general, the liver and intestine absorbed more metals than the other tissues. Metals accumulation can be influenced by gender and feeding behavior and in fact, female fish and dietary exposure are more prone to accumulate metals. In addition, Pb isotopic ratios indicated that all species had significant biological fractionation, which may not make them good tracers for source identification. The metal concentrations of most samples were lower than the national standard values of the FAO (USA), which suggested that human consumption of these species may not cause health risks. However, since the surrounding areas are developing rapidly, the potential environmental risk of metals will intensify and should receive more attention.