Sediments are the reserve of environmental variation and analysis gives the diverse nature of
the environmental chemical pattern. Present attempt provides an insight on the
biogeochemistry (BGC) of sediment in selected stations of Kerala coast, India. Sampling
along the Kerala coast was done during May – June 2009 in cruise no: 267 of Fishery and
Oceanographic Research Vessel, Sagar Sampada. Eleven samples were collected from four
stations - Cape, Trivandrum, Kollam and Cochin. Study of organic matter (OM) is significant
as it exerts a strong control on the diagenic alterations in the sediment. Samples were
analyzed for their Texture; OM- Protein, Carbohydrate, Tannin and lignin, Lipid; Trace
metal; Total phosphorus and CHN. Among the eleven analyzed sediment, sample from
Cochin station has high clay (>30%) and silt (>40%) content. The rest of the stations showed
elevated amount of sand content. Generally the investigation reveals an inverse relation
between lipid with other OM- Protein, Carbohydrate, Tannin and lignin. The order of relative
distribution of OM were Protein > Carbohydrate > Tannin and Lignin > Lipid. High
concentration of trace metal, Fe was found at Kollam and Cochin. Trace metal concentration
was directly related to OM distribution. But C/N and Fe/P ratios were inversely related to OM
and trace metal.
Description:
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCES Volume 3, No 1, 2012
Sujatha, C H; Manju, Nair P(International Science Congress Association, April 14, 2013)
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Abstract:
Distribution of toxic metal in the sediment core is an important area of research for environmental impact studies. Sediment
cores were collected from two prominent region(C1 and C2) of CE and subjected to geochemical analysis to determine
distribution of toxic metals (Cd, Co, Cr, Cu and Pb ), texture characteristics, total organic carbon (TOC) and CHNS.
Statistical analysis was done to understand the interrelationship between the components. In the studied cores, metal
contamination level was identified for Pb, Cu; Cr, in C1 and C2 respectively. The metal distribution depends on the
granulometric factor, geogenic mineral components and anthropogenic input. Correlation analysis (CA) and Principal
component(PCA) analysis also support these results
Description:
Research Journal of Chemical Sciences,Vol. 3(4), 65-69, April (2013)