Risk assessment and source apportionment for metals in sediments of Kaptai Lake in Bangladesh using individual and synergistic indices and a receptor model

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dc.contributor.authorIslam, Abu Reza Md Towfiqul
dc.contributor.authorVarol, Memet
dc.contributor.authorHabib, Md. Ahosan
dc.contributor.authorKhan, Rahat
dc.date.accessioned2026-06-19T06:39:48Z
dc.date.available2026-06-19T06:39:48Z
dc.date.issued2023
dc.departmentMalatya Turgut Özal Üniversitesi
dc.description.abstractMetal enrichment in lake sediments originating from multiple sources can threaten both the aquatic ecosystem and human health. Therefore, assessment of the eco-environmental risks and potential sources of metals in the sediments is essential for effective lake management. Here, we analyzed the sediment metal contents of Kaptai Lake, the largest lake in Bangladesh for the first time with this study. The results indicated that only Cr and Ni contents among the metals studied exceeded the probable effect concentrations (PEC) at 25.42 % and 55.93 % of the sampling stations, respectively. All metals at most sampling stations showed low contamination and low ecological risk based on the individual indices (geoaccumulation index, contamination factor, ecological risk factor, enrichment factor and modified hazard quotient). There was no significant risk from the combined metals in the sediments of the lake according to the synergistic indices (toxic risk index, Nemerow risk index, ecological risk index, Nemerow pollution index and pollution load index). Organic matter and silt were significant sediment parameters that favored the accumulation of Cr, Fe, Cu, Pb and Mn. In the absolute principle component scores -multiple linear regression model (APCS-MLR), five potential sources of metals were identified in the sediments: Zn, Mn, Co and Cd mainly from natural sources and to a lesser extent from agricultural and aquacultural ac-tivities, Ni, Cr and Fe from parent materials, Pb and Cu mainly from natural sources and to a lesser extent from vehicle emissions, Hg and U from lithogenic sources, and As from natural sources. This study will improve our knowledge of the sedimentary metal contents of Kaptai Lake and provide helpful information for developing effective lake management and pollution control strategies.
dc.identifier.doi10.1016/j.marpolbul.2023.114845
dc.identifier.issn0025-326X
dc.identifier.issn1879-3363
dc.identifier.orcid0000-0001-6475-0570
dc.identifier.orcid0000-0002-5693-3892
dc.identifier.orcid0000-0001-5779-1382
dc.identifier.pmid36965264
dc.identifier.scopus2-s2.0-85150756234
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.marpolbul.2023.114845
dc.identifier.urihttps://hdl.handle.net/20.500.12899/5801
dc.identifier.volume190
dc.identifier.wosWOS:000965555600001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofMarine Pollution Bulletin
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20260612
dc.subjectMetals
dc.subjectSediment Properties
dc.subjectEco-Environmental Risks
dc.subjectSource Apportionment
dc.subjectApcs-Mlr
dc.subjectKaptai Lake
dc.titleRisk assessment and source apportionment for metals in sediments of Kaptai Lake in Bangladesh using individual and synergistic indices and a receptor model
dc.typeArticle

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