Arsenic bioaccumulation in fish of the lower meghna river: Seasonal dynamics, species sensitivity, and public health implications.

ABSTRACT: The Lower Meghna River (LMR), located in one of Bangladesh's most arsenic-contaminated regions, is essential for local fisheries and provides water for drinking, irrigation, and daily use. Consequently, this study investigates arsenic accumulation in ten edible, small indigenous species (SIS) of fish, considering their morphology, habitats, diets, and water and sediment conditions. Samples were analysed across three distinct river segments during three seasons. The arsenic levels in water and sediment fell within non-polluting limits; however, certain fish species, including Mystus vittatus, Glossogobius giuris, Lepidocephalichthys guntea, Neotropius atherinoides, and Apocryptes bato, surpassed the WHO's safe consumption threshold (1 mg/kg). Arsenic levels in water, sediment, and fish show

SUBMITTER: Paul SK 

PROVIDER: S-EPMC12407486 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature