Arsenic-contaminated food including farmed fish is one of the main routes of human exposure. Fish farmed in contaminated environment accumulates arsenic in different tissues with great variability. Thus, it is utmost important to quantify the risk associated with different farmed fish species in arsenic-contaminated aquaculture systems. In the present study, arsenic content was measured in twelve fish species (Labeo rohita, L. catla, Cirrhinus mrigala, Oreochromis niloticus, O. mossambicus, Liza tade, Puntius javanicus, L. calbasu, Glossogobius giuris, Macrobrachium rosenbergii, Ctenopharyngodon idella, and Bellamya bengalensis (gastropod)) collected from arsenic-contaminated aquaculture systems. Among the studied finfishes, C. idella was found to accumulate the lowest amount of arsenic (< 0.05 ± 0.00 mg kg⁻¹) whereas the highest accumulation was noticed in O. mossambicus (1.0 ± 0.18 mg kg⁻¹). However, the estimated carcinogenic and non-carcinogenic risks of human were found to be low for all the studied fishes. The calculated target hazard quotient (THQ) value for adults ranged from 0.01 to 0.08 whereas for children it ranged from 0.05 to 0.27 for low-arsenic-accumulating fishes (arsenic conc. < 0.5 mg kg⁻¹). Based on these findings, C. mrigala, C. idella, and M. rosenbergii could be recommended as the candidate species for aquaculture in the arsenic-contaminated areas as farming of the low-arsenic-accumulating food fishes would also lower the risk of human exposure through food chain.

包括养殖鱼类在内的砷污染食品是人类接触砷的主要途径之一。在受污染环境中养殖的鱼在不同组织中积累砷，变异性很大。因此，量化砷污染水产养殖系统中不同养殖鱼类的相关风险至关重要。在本研究中，测量了 12 种鱼类（Labeo rohita、L. catla、Cirrhinus mrigala、Oreochromis niloticus、O. mossambicus、Liza tade 、Puntius javanicus、L. calbasu、Glossogobius giuris、Macrobrachium rosenbergii、从受砷污染的水产养殖系统中采集的Ctenopharyngodon idella和Bellamya bengalensis（腹足动物）。在所研究的有鳍鱼类中，发现C. idella积累的砷量最低（< 0.05 ± 0.00 mg kg ^-1），而在O. mossambicus中发现的积累量最高（1.0 ± 0.18 mg kg ^-1）。然而，对于所有研究的鱼类，发现对人类的估计致癌和非致癌风险都很低。计算得出的成人目标危害商 (THQ) 值范围为 0.01 至 0.08，而儿童的低砷积累鱼类（砷浓度 < 0.5 mg kg ^-1）的范围为 0.05 至 0.27。基于这些发现，C. mrigala、C. idella和M. rosenbergii可被推荐为砷污染地区水产养殖的候选物种，因为低砷食用鱼的养殖也将降低人类通过食物链接触的风险。