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dc.contributor.authorVudamala, K.
dc.contributor.authorShekharRao, D.
dc.contributor.authorSharma, A.
dc.contributor.authorRay, D.
dc.contributor.authorChanu, A. K.
dc.contributor.authorPrakash, P.
dc.date.accessioned2025-07-04
dc.date.accessioned2025-07-04T06:45:24Z
dc.date.available2025-05-30
dc.date.available2025-07-04T06:45:24Z
dc.date.issued2025
dc.identifier.citationACS EST Water,vol.5(6);2025;pp.2760-2777
dc.identifier.issn2690-0637
dc.identifier.otherhttps://pubs.acs.org/doi/full/10.1021/acsestwater.5c00165
dc.identifier.urihttps://doi.org/10.1021/acsestwater.5c00165
dc.identifier.urihttp://drs.nio.res.in/drs/handle/2264/9474
dc.descriptionIF2023=4.3
dc.description.abstractThis study presents a comparative assessment of heavy metal contamination in sediments from major Indian estuaries in recent decades. Metal concentration data were compiled from published literature and analyzed for Pb, Cd, Cr, Hg, As, Cu, Ni, Zn, Al, Fe, and Mn using indices such as effects range low-effect range median (ERL-ERM), contamination factor (CF), and pollution load index (PLI). Nickel frequently exceeded ERM thresholds (in 20 out of 62 studies), while Cd pollution was most severe (mean CF: 38.89), especially in the Godavari estuary (CF: 49.39�256.12), likely due to industrial discharge. Notably, the PLI of the Narmada estuary declined from 2.54 (2010) to 0.69 (2020), indicating improved effluent management. Two new metrics, temporal averaged PLI (TAPLI) and PLI rate (PLIR), were introduced to evaluate trends. The highest TAPLI values were in the Godavari (3.30) and Ulhas (3.81) estuaries. Negative PLIR values were seen in Uppanar, Zuari, Mahanadi, Mandovi, and Narmada, while Cauvery showed a positive value (0.35 PLI/year), with PLI increasing from 0.39 (2008) to 6.76 (2023). East (2.15) and west (2.24) coasts had a similar mean PLI value. These findings highlight the need for targeted estuarine remediation efforts.
dc.languageen
dc.publisherACS Publications
dc.relation.isreferencedbyNON-SCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titleComparative Assessment of Heavy Metal Contamination and Pollution Trends in Indian Estuarine Sediments: Insights from East and West Coasts of India
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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