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This study quantifies heavy metal contamination in sediments, water, and crab and evaluates associated health risks.

June 11, 2026Discover OceansOpen Access

Seasonal variations of heavy metals contamination in sediment, water and crab at a vital fish sanctuary connected to the Bay of Bengal and health risk assessment

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Randomized trial assesses heavy metal contamination in sediment and crab, indicating health risks for consumers.

This study quantifies heavy metal contamination in sediments, water, and crab and evaluates associated health risks.
Assessment of eleven heavy metals in sediment, water, and crab using ICP-MS.
Comparison of seasonal variations between samples collected during winter and other seasons.
Calculation of Risk Index (RI) and Total Target Hazard Quotient (TTHQ) for health risk evaluation.
Heavy metal concentrations in sediment exceeded recommended values, particularly As, Co, Cr, Cu, Mn, Ni, and Zn.
Crab samples showed elevated levels of As, Cd, Cr, Cu, Fe, Pb, and Zn, with TTHQ surpassing the acceptable limit of 1.
Carcinogenic risk for Cr and Pb in crab samples exceeded threshold levels, indicating health concerns for children and adults.

Rahman et al. (2026) studied this question.

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