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Assessment of the Levels of Pollution and of Their Risks by Radioactivity and Trace Metals on Marine Edible Fish and Crustaceans at the Bay of Bengal (Chattogram, Bangladesh)

2021-02-11Artigo científico Acesso aberto
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datacite.subject.fosCiências Agrárias::Agricultura, Silvicultura e Pescas
datacite.subject.fosCiências Naturais::Ciências da Terra e do Ambiente
datacite.subject.fosCiências Naturais::Outras Ciências Naturais
datacite.subject.sdg12:Produção e Consumo Sustentáveis
datacite.subject.sdg13:Ação Climática
datacite.subject.sdg14:Proteger a Vida Marinha
dc.contributor.authorBiswas, Krishna Prasad
dc.contributor.authorHossain, Shahadat
dc.contributor.authorDeb, Nipa
dc.contributor.authorBhuian, A.K.M. Saiful Islam
dc.contributor.authorGonçalves, Sílvia C.
dc.contributor.authorHossain, Shahadat
dc.contributor.authorHossen, Mohammad Belal
dc.date.accessioned2026-04-08T14:08:34Z
dc.date.available2026-04-08T14:08:34Z
dc.date.issued2021-02-11
dc.description.abstractMarine environmental pollution is a longstanding global problem and has a particular impact on the Bay of Bengal. Effluent from different sources directly enters rivers of the region and eventually flows into the Bay of Bengal. This effluent may contain radioactive materials and trace metals and pose a serious threat to the coastal environment, in addition to aquatic ecosystems. Using gamma spectrometry and atomic absorption spectrometry, a comprehensive study was carried out on the radioactivity (226Ra, 232Th, 40K, and 137Cs) and trace metal (Cd, Pb, Zn, Cu, Ni, Fe, Mn, and Cr) concentrations, respectively, in fish and crustacean species collected from the coastal belt of the Bay of Bengal (Chattogram, Bangladesh). The analysis showed a noticeable increment in the levels of different radioactive pollutants in the marine samples, although the consumption of the studied fish and crustacean species should be considered safe for human health. Anthropogenic radionu-clide (137Cs) was not detected in any sample. Furthermore, the metal concentrations of a small num-ber of trace elements (Pb, Cd, Cr) were found to be higher in most of the samples, which indicates aquatic fauna are subject to pollution. The estimated daily intake (EDI), target hazard quotient (THQ), hazard index (HI), and target cancer risk (TR) were calculated and compared with the per-missible safety limits. It was found that consuming the seafood from the Bay of Bengal may cause adverse health impacts if consumption and/or means of pollution are not controlled.</jats:p>eng
dc.description.sponsorshipThe authors are thankful to the authority of the Atomic Energy Centre, Chattogram, Bangladesh Atomic Energy Commission, for providing support and technical co-operation to analyze the specimens using the HPGe and AAS. The authors are also delighted to express their gratefulness to the Ministry of Shipping, Peoples’ Republic of Bangladesh, for their utmost support. Thanks also goes to Masuda Begum Sampa, Kyushu Institute of Technology, Japan for the fruitful discussion.
dc.identifier.citationBiswas, K.P.; Hossain, S.; Deb, N.; Bhuian, A.K.M.S.I.; Gonçalves, S.C.; Hossain, S.; Hossen, M.B. Assessment of the Levels of Pollution and of Their Risks by Radioactivity and Trace Metals on Marine Edible Fish and Crustaceans at the Bay of Bengal (Chattogram, Bangladesh). Environments 2021, 8, 13. https://doi.org/10.3390/environments8020013.
dc.identifier.doi10.3390/environments8020013
dc.identifier.eissn2076-3298
dc.identifier.urihttp://hdl.handle.net/10400.8/16076
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relation.hasversionhttps://www.mdpi.com/2076-3298/8/2/13
dc.relation.ispartofEnvironments
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectradioactive materials
dc.subjecttrace metals
dc.subjectbioaccumulation
dc.subjectmarine fish
dc.subjectcrustaceans
dc.subjectmarine environmental pollution
dc.subjectBay of Bengal
dc.titleAssessment of the Levels of Pollution and of Their Risks by Radioactivity and Trace Metals on Marine Edible Fish and Crustaceans at the Bay of Bengal (Chattogram, Bangladesh)eng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage19
oaire.citation.issue2
oaire.citation.startPage1
oaire.citation.titleEnvironments - MDPI
oaire.citation.volume8
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameGonçalves
person.givenNameSílvia
person.identifier.ciencia-id6E19-0C5D-6398
person.identifier.orcid0000-0003-1970-0181
person.identifier.scopus-author-id16205308900
relation.isAuthorOfPublication3e88f294-5b87-47ff-83e6-2b526db8c017
relation.isAuthorOfPublication.latestForDiscovery3e88f294-5b87-47ff-83e6-2b526db8c017

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Marine environmental pollution is a longstanding global problem and has a particular impact on the Bay of Bengal. Effluent from different sources directly enters rivers of the region and eventually flows into the Bay of Bengal. This effluent may contain radioactive materials and trace metals and pose a serious threat to the coastal environment, in addition to aquatic ecosystems. Using gamma spectrometry and atomic absorption spectrometry, a comprehensive study was carried out on the radioactivity (226Ra, 232Th, 40K, and 137Cs) and trace metal (Cd, Pb, Zn, Cu, Ni, Fe, Mn, and Cr) concentrations, respectively, in fish and crustacean species collected from the coastal belt of the Bay of Bengal (Chattogram, Bangladesh). The analysis showed a noticeable increment in the levels of different radioactive pollutants in the marine samples, although the consumption of the studied fish and crustacean species should be considered safe for human health. Anthropogenic radionu-clide (137Cs) was not detected in any sample. Furthermore, the metal concentrations of a small num-ber of trace elements (Pb, Cd, Cr) were found to be higher in most of the samples, which indicates aquatic fauna are subject to pollution. The estimated daily intake (EDI), target hazard quotient (THQ), hazard index (HI), and target cancer risk (TR) were calculated and compared with the per-missible safety limits. It was found that consuming the seafood from the Bay of Bengal may cause adverse health impacts if consumption and/or means of pollution are not controlled.
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