AI Article Synopsis
- - The study investigates the impact of heavy metals and microplastics on marine life by analyzing water and tissue samples from macroalgae, prawns, and crabs along the Gujarat coast.
- - High levels of chromium, nickel, and copper were found in specific locations and organisms, with mercury and nickel showing significant accumulation patterns.
- - There was a notable presence of various microplastic types (like threads and fragments) in the samples, indicating pollution levels surpassing safe limits across different marine food chains, necessitating urgent environmental policy changes.
Article Abstract
Heavy metal and microplastic pollution are a threat to marine ecosystems. Thus, the present study aims to assess the risk of these contaminants on edible organisms. Water and tissues of macroalgae, prawns, and crabs collected from 27 sites (3 zones) across the Gujarat coast were evaluated for heavy metal and microplastic presence. Chromium and nickel concentrations were highest in water samples of Alang and Nishkalank and in muscles of Penaeus japonicus, and Portunus sanguinolentus, while copper was highest in Ulva lactuca. Additionally, the bioconcentration factor highlighted mercury accumulation in macroalgae and nickel in prawns and crabs. Water and tissue samples revealed an abundance of microplastics (0.5- 4 mm) consisting of threads (49 %), fragments (33 %), and films (18 %) representing polymers like polyvinyl chloride, nylon, polypropylene, and polystyrene. Our findings indicate that contamination exceeds permissible limits in all three trophic levels studied, attributed to elevated anthropogenic activities, requiring immediate intervention for policy-driven decisions.
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| http://dx.doi.org/10.1016/j.marpolbul.2024.117357 | DOI Listing |
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