Prabakaran K, Charoenpong Chawalit, Bureekul Sujaree, Wang Xiangfeng, Sompongchaiyakul Penjai
Department of Marine Science, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
Asian School of the Environment, Nanyang Technological University, Singapore; Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore.
Mar Pollut Bull. 2025 Jan;210:117299. doi: 10.1016/j.marpolbul.2024.117299. Epub 2024 Nov 30.
This study investigates Hg, Cd, Cu, Zn, and Pb concentrations in 324 fish samples from 43 species, including two cephalopod species, in the Andaman Sea. The fish were categorized into pelagic and demersal groups. The findings revealed average heavy metal concentrations in the order: Zn > Cu > Hg > Pb > Cd, with pelagic fish showing higher levels than demersal fish. Certain larger pelagic fish had mercury concentrations above prescribed limits, posing possible health hazards, even though they are less commonly consumed by humans. Cd and Pb levels in certain species exceeded regulatory thresholds of 0.05-1 μg/g and 0.3 μg/g, respectively, while Cu and Zn remained within safe limits. Although the overall cancer risk was low, the Target Hazard Quotient (THQ) and Hazard Index (HI) values surpassed 1, indicating significant health risks from consuming species such as Alopias superciliosus, Isurus oxyrinchus, Lepturacanthus savala, Makaira mazara, and Sphyraena barracuda. These findings underscore the need for ongoing monitoring and public advisories to mitigate health risks.
本研究调查了安达曼海中43种鱼类（包括两种头足类动物）的324份鱼类样本中的汞、镉、铜、锌和铅含量。这些鱼类被分为中上层鱼类和底层鱼类。研究结果显示，重金属平均含量顺序为：锌>铜>汞>铅>镉，中上层鱼类的含量高于底层鱼类。某些较大的中上层鱼类汞含量超过规定限值，尽管人类较少食用它们，但仍可能构成健康危害。某些物种中的镉和铅含量分别超过了0.05 - 1μg/g和0.3μg/g的监管阈值，而铜和锌仍在安全限值内。尽管总体癌症风险较低，但目标危害商数（THQ）和危害指数（HI）值超过了1，表明食用大眼长尾鲨、尖吻鲭鲨、长条蛇鲻、蓝枪鱼和梭鱼等物种会带来重大健康风险。这些发现强调了持续监测和发布公共建议以降低健康风险的必要性。
