Environmental risk assessment of heavy metals and microplastics in marine biota along Gujarat coastline, India.

Autor: Upadhyay P; TREE Lab, Division of Biomedical and Life Sciences, School of Science, Navrachana University, Vadodara, India. Electronic address: upadhyayprince1401@gmail.com., Ladumor R; TREE Lab, Division of Biomedical and Life Sciences, School of Science, Navrachana University, Vadodara, India. Electronic address: rhladumor1999@gmail.com., Gurjar T; TREE Lab, Division of Biomedical and Life Sciences, School of Science, Navrachana University, Vadodara, India. Electronic address: gurjartejas497@gmail.com., Kottayi M; Division of Biomedical and Life Sciences, School of Science, Navrachana University, Vadodara, India. Electronic address: monishak@nuv.ac.in., Doshi A; Division of Biomedical and Life Sciences, School of Science, Navrachana University, Vadodara, India. Electronic address: ankitad@nuv.ac.in., Pandya P; TREE Lab, Division of Biomedical and Life Sciences, School of Science, Navrachana University, Vadodara, India. Electronic address: parthp@nuv.ac.in.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2024 Dec 05; Vol. 211, pp. 117357. Date of Electronic Publication: 2024 Dec 05.
DOI: 10.1016/j.marpolbul.2024.117357
Abstrakt: 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.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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