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Accumulation of sediment, organic matter and trace metals with space and time, in a creek along Mumbai coast, India

DRS at CSIR-National Institute of Oceanography

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Title Accumulation of sediment, organic matter and trace metals with space and time, in a creek along Mumbai coast, India
 
Creator Fernandes, L.
Nayak, G.N.
Ilangovan, D.
Borole, D.V.
 
Subject organic matter
trace metals
sediment
seawater mixing
 
Description Two core sediment samples; one from inner part (ManI) and the other closer to the mouth (ManII; were collected from the intertidal regions of Manori, a tidally influenced creek near Mumbai, India. Both the cores were subjected to various geochemical analyses to determine parameters such as pH, sediment components, total organic carbon, total nitrogen, total phosphorus and selected metals viz., Fe, Mn, Cu, Pb, Co, Ni, Zn, Cr, Al, Ca and V. Analysis of sup(210) Pb activity was employed to assess the sediment deposition trend of the area. The data was further processed using factor and cluster analyses. The results indicate that the sediments from site ManI, had finer sediment composition, higher porosity, organic matter and metal contents but exhibited an erratic decline in sup (210) Pb activity downcore. Also ManI showed higher C:N ratio and enrichment factor values as compared to site ManII. The inner area (ManI) probably received a greater input of organic matter from the erosion of terrestrial matter as well as domestic and industrial discharge. Sediments from site ManII had typical marine organic matter composition (lower C:N ratio). The concentration of metals at this site was also low indicating the contents were getting diluted by freshwater and seawater mixing
 
Date 2011-03-30T06:00:22Z
2011-03-30T06:00:22Z
2011
 
Type Journal Article
 
Identifier Estuarine, Coastal and Shelf Science, vol.91(3); 2011; 388-399
http://drs.nio.org/drs/handle/2264/3828
 
Language en
 
Rights An edited version of this paper was published by Elsevier. Copyright [2011] Elsevier
 
Publisher Elsevier