Department of Fish Quality Assurance and Management, Fisheries College and Research Institute, Tamil Nadu Dr. J. Jayalalithaa Fisheries University (TNJFU), Tamil Nadu, Tuticorin, 628 008, India.
Department of Botany and Microbiology, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia.
Environ Geochem Health. 2024 Jan 16;46(2):35. doi: 10.1007/s10653-023-01789-0.
This study assesses the bioaccumulation, ecological, and health risks associated with potentially toxic metals (PTMs), including Pb, Hg, Cd, As, and Cr in Hare Island, Thoothukudi. The results revealed that the concentration of PTMs in sediment, seawater, and S. wightii ranged from 0.095 to 2.81 mg kg, 0.017 to 1.515 mg L, and 0.076 to 5.713 mg kg, respectively. The highest concentrations of PTMs were found in the S. wightii compared to seawater and sediment. The high bioaccumulation of Hg and As in S. wightii suggests that it can be used as a bioindicator for these elements in this region. The ecological risk indices, which include individual, complex, biological, and ecological pollution indices, suggest that Hare Island had moderate contamination with Hg and Cd. However, there are no human health risks associated with PTMs. This study examines the current ecological and health risks associated with PTMs and emphasizes the importance of regular monitoring.
本研究评估了潜在有毒金属（PTMs），包括铅、汞、镉、砷和铬在杜蒂戈林的 Hare 岛的生物累积、生态和健康风险。结果表明，PTMs 在沉积物、海水中和 S. wightii 中的浓度范围分别为 0.095 至 2.81mg/kg、0.017 至 1.515mg/L 和 0.076 至 5.713mg/kg。PTMs 的最高浓度出现在 S. wightii 中，其次是海水和沉积物。Hg 和 As 在 S. wightii 中的高生物累积表明它可以作为该地区这些元素的生物指示剂。生态风险指数，包括个体、复杂、生物和生态污染指数，表明 Hare 岛受到 Hg 和 Cd 的中度污染。然而，PTMs 不会对人体健康造成风险。本研究考察了 PTMs 目前的生态和健康风险，并强调了定期监测的重要性。
