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<p>Lead (Pb) is a major contaminant in the marine environment, and the extent of pollution in marine ecosystems has raised significant concerns about the safety of marine food. As India is&#xa0;one of the world’s leading marine fish exporters, insights into Pb accumulation along the coast are crucial to formulate and revisit relevant policy guidelines. This necessitates a comprehensive evaluation of Pb accumulation across India’s coastal regions. To address this, the current study systematically reviewed 172 peer-reviewed articles on the accumulation of Pb in marine fishes that were retrieved through a systematic search from Scopus, PubMed, Web of Science, and EBSCO. Emphasis was given to muscle accumulation because of its direct relevance to human consumption. A total of 120 marine fish species were recorded across all studies, of which 38 species had explicit Pb concentrations in muscle tissues. Among these, seven were commercially important species, such as <i>Chanos chanos</i>, <i>Lepturacanthus savala</i>, <i>Mugil cephalus</i>, <i>Oreochromis mossambicus</i>, <i>Rastrelliger kanagurta</i>, <i>Stolephorus indicus</i>, and <i>Sardinella longiceps</i>. These species, sampled from industrialized areas, were identified as being at risk for human consumption, surpassing the national and international prescribed limit of 0.5&#xa0;ppm. This synthesis highlights significant variations in Pb concentrations across India’s coastal regions, with nine different locations (Chennai, Cuddalore, Kalpakkam, Ennore, Valinokkam, Kanyakumari, Gulf of Mannar, Kochi, and Mumbai) exceeding threshold limits, thus identified as hotspots for Pb accumulation. This synthesis elucidates the transboundary nature of seafood contamination, aiding policymakers and environmental regulatory agencies in developing strategies to mitigate Pb contamination in seafood, and promoting marine sustainability.</p>

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Lead contamination hotspots in marine fishes along the Indian coast: a systematic review

  • 期刊论文

  • 发表日期：

    2026年4月11日

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  • Rangabhatla Saishree,
  • Sakti P. Pattnayak,
  • Priyanka Jena,
  • Swayam Siddha,
  • Rakesh Paul,
  • B. Anjan Kumar Prusty

摘要

Lead (Pb) is a major contaminant in the marine environment, and the extent of pollution in marine ecosystems has raised significant concerns about the safety of marine food. As India is one of the world’s leading marine fish exporters, insights into Pb accumulation along the coast are crucial to formulate and revisit relevant policy guidelines. This necessitates a comprehensive evaluation of Pb accumulation across India’s coastal regions. To address this, the current study systematically reviewed 172 peer-reviewed articles on the accumulation of Pb in marine fishes that were retrieved through a systematic search from Scopus, PubMed, Web of Science, and EBSCO. Emphasis was given to muscle accumulation because of its direct relevance to human consumption. A total of 120 marine fish species were recorded across all studies, of which 38 species had explicit Pb concentrations in muscle tissues. Among these, seven were commercially important species, such as Chanos chanos, Lepturacanthus savala, Mugil cephalus, Oreochromis mossambicus, Rastrelliger kanagurta, Stolephorus indicus, and Sardinella longiceps. These species, sampled from industrialized areas, were identified as being at risk for human consumption, surpassing the national and international prescribed limit of 0.5 ppm. This synthesis highlights significant variations in Pb concentrations across India’s coastal regions, with nine different locations (Chennai, Cuddalore, Kalpakkam, Ennore, Valinokkam, Kanyakumari, Gulf of Mannar, Kochi, and Mumbai) exceeding threshold limits, thus identified as hotspots for Pb accumulation. This synthesis elucidates the transboundary nature of seafood contamination, aiding policymakers and environmental regulatory agencies in developing strategies to mitigate Pb contamination in seafood, and promoting marine sustainability.