Heavy metal content in water, sediment, and tissues of six commonly used edible fishes from Adyar estuary, southeast coast of India, was assessed for metal bioaccumulation. The enrichment of metals in estuarine sediment is due to the discharge of contaminated water from the Chennai Metropolis. The enrichment factor indicated that metals such as Cr (EF=30.9) and Cu (EF=31.9) are highly enriched and fall under the very severe category. Bioaccumulation factor (BAF) revealed that the concentration of heavy metals viz. Ni, Cr, Pb, Cu, Co, Zn, Fe, and Mn in different tissues of fishes was several times higher than their concentrations in water. Moreover, high concentration of heavy metals, especially Cu and Cr was noticed in the muscle and liver tissues of the fishes which are higher than the WHO standards. Among the studied fishes, Arius parkii and Gerres oyena showed higher levels of bioaccumulation in terms of toxic metals.

对印度东南沿海阿迪亚河口的六种常用食用鱼的水，沉积物和组织中的重金属含量进行了金属生物富集评估。河口沉积物中金属的富集归因于从钦奈大都市排放的污水。富集因子表明，诸如Cr（EF = 30.9）和Cu（EF = 31.9）之类的金属高度富集，属于非常严格的类别。生物富集因子（BAF）表明，重金属的浓度即。鱼类不同组织中的镍，铬，铅，铜，钴，锌，铁和锰比其在水中的浓度高出几倍。此外，在鱼类的肌肉和肝脏组织中发现了高浓度的重金属，尤其是铜和铬，高于世卫组织的标准。在研究的鱼类中，在有毒金属方面，阿里乌斯·帕克（Arius parkii）和盖尔·耶纳（Gerres oyena）表现出更高的生物蓄积水平。