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dc.contributor.authorManju, M.N.
dc.contributor.authorRatheeshKumar, C.S.
dc.contributor.authorResmi, P.
dc.contributor.authorGireeshkumar, T.R.
dc.contributor.authorManju M.J.
dc.contributor.authorSalas, P.M.
dc.contributor.authorChandramohanakumar, N.
dc.date.accessioned2020-12-31
dc.date.accessioned2021-02-09T10:13:20Z
dc.date.available2020-04-01
dc.date.available2021-02-09T10:13:20Z
dc.date.issued2020
dc.identifier.citationMarine Pollution Bulletin, vol.153; 2020; Article no: 110946
dc.identifier.issn1879-3363
dc.identifier.otherhttps://www.sciencedirect.com/science/article/pii/S0025326X20300643
dc.identifier.urihttps://doi.org/10.1016/j.marpolbul.2020.110946
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/8509
dc.descriptionIF2019 - 4.049
dc.description.abstractCore sediment samples were collected from five mangrove ecosystems along northern Kerala coast (Kunjimangalam: S1, Pazhayangadi: S2, Pappinissery: S3, Thalassery: S4, and Kadalundi: S5) to assess the status of heavy metal pollution. S1 recorded comparatively lower metal concentration at surface (except Pb) due to low organic content and sandy texture, while the reverse was true for S3. Higher metal contents were recorded at S5 (0-5 cm), which was attributed to its unique biogeochemical behavior. Enrichment factor and geoaccumulation index indicated moderate enrichment for Cd, and the pollution load index revealed progressive deterioration of sediment quality at S5 (0-5 cm). There was no harmful effect of trace metals on biological community (except Ni) according to Sediment Quality Guidelines. Major processes controlling trace metal accumulation in these systems are diagenetic processes, precipitation of heavy metals as sulfides, and the presence of Fe, Mn-oxy hydroxides, which act as adsorption sites for other metals.
dc.languageen
dc.publisherElsevier Ltd
dc.relation.ispartofMar Pollut Bull
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titleTrace metal distribution in the sediment cores of mangrove ecosystems along northern Kerala coast, south-west coast of India
dc.typeJournal Article
dc.affiliation.authorDepartment of Chemical Oceanography, School of Marine Sciences, Cochin University of Science and Technology, Kochi, PIN-682016, Kerala, India


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