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Organic carbon in the sediments of the lower reaches of Periar River

DRS at CSIR-National Institute of Oceanography

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Title Organic carbon in the sediments of the lower reaches of Periar River
 
Creator Devi, K.S.
Venugopal, P.
Sankaranarayanan, V.N.
 
Subject freshwater pollution
water quality
pollution indicators
sediment analysis
organic carbon
spatial variations
sediment texture
oxidation
 
Description Sediments are indicators of the quality of water overlying them and hence, useful in the assessment of environmental pollution. Temporal and spatial variations in sediment characteristics and organic carbon content from 9 stations in the lower reaches of Periyar River an area in Cochin Backwater, India which is polluted from different sources were studied for one year during 1981. Variations in colour and texture of sediments were brought about by changes in the grain size and state of oxidation of organic matter. The colour of the sediment varied from greyish black at stations 1 and 2, brownish at station 3, black at stations 4 to 8 and reddish at station 9. Organic carbon and sediment texture showed a direct relationship at all stations except at station 9 where organic carbon content showed an irregular pattern. Overall range of organic carbon content was between 1.19 and 29.6 mg.g sup(-1). The mean organic carbon of the stations ranged between 6.8 mg.g sup(-1) (station 5) and 20.8 mg.g sup(-1) (station 9). On the whole temporal variations were considerable with high values at station 9 and low values at station 5. Fluctuations were more at stations 6, 7 and 8.
 
Date 2009-05-08T11:56:16Z
2009-05-08T11:56:16Z
1992
 
Type Journal Article
 
Identifier Journal of the Indian Fisheries Association, Vol.22; 61-68p.
http://drs.nio.org/drs/handle/2264/3030
 
Language en
 
Rights Copyright [1992]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher Indian Fisheries Association