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dc.contributor.authorChakraborty, S.
dc.contributor.authorChakraborty, P.
dc.contributor.authorSarkar, Arindam
dc.contributor.authorNath, B.N.
dc.date.accessioned2018-06-06
dc.date.accessioned2018-10-23T09:24:54Z
dc.date.available2017-10-15
dc.date.available2018-10-23T09:24:54Z
dc.date.issued2017
dc.identifier.citationMarine Pollution Bulletin, vol.123(1-2); 2017; 188-196
dc.identifier.issn0025-326X
dc.identifier.urihttps://doi.org/10.1016/J.MARPOLBUL.2017.08.063
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/7791
dc.description.abstractTwo independent analytical methods (kinetic and sequential extraction protocols) were used to understand the distribution, stability, and lability of Pb-sediment complexes in Indian continental shelf. The concentrations of sedimentary Pb varied from 12.0 0.6 to 30.4�0.1mg�kg?1 and 15.9�0.3 to 36.7�0.4mg�kg?1 in the western and eastern shelf of India respectively. The kinetic extraction study showed that higher proportion of labile Pb-complexes were present in the eastern shelf sediments (~24% of total Pb) than the western shelf sediments (~14% of total Pb). The sedimentary organic matter was found to regulate lability of sedimentary Pb complexes. The sequential extraction study suggested that Fe/Mn oxyhydroxide were the primary hosting phase for labile Pb complexes. This study showed that water soluble, exchangeable, carbonate/bicarbonate-Pb complexes in the sediments was labile. This study provides a better physicochemical description of stability or lability of Pb complexes in the coastal sediment of India.
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofMar Pollut Bull
dc.relation.isreferencedbySCI
dc.titleKinetic and equilibrium based fractionation study of Pb in continental shelf sediment of India
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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