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The behaviour of aluminium in waters of the Mandovi estuary, west coast of India

DRS at CSIR-National Institute of Oceanography

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Title The behaviour of aluminium in waters of the Mandovi estuary, west coast of India
 
Creator Upadhyay, S.
SenGupta, R.
 
Subject aluminium
trace metals
estuaries
salinity
 
Description The concentration of dissolved Al in both the freshwater (approx 0.08 - 0.23 mu M) and seawater (less than or equal to 0.07 mu M) endmembers of the Mandovi estuary is low, the former being always greater in magnitude than the latter. In high-salinity (> 10) waters an increase in dissolved Al levels is conspicuous while it is uniform at salinities approx 1-10. Althouth a removal of Al from solution in the low-salinity region is apparent, the magnitude of this removal is, however, relatively small. On the contrary, a steady increase in concentration of dissolved Al downstream reveals a significant input of Al into the high-salinity waters of the mid-and lower estuary. The data indicate that the removal of dissolved Al onto riverine sediments tends to occur during the initial stages of estuarine mixing but with little or no net permanent loss, as the sediments on resuspension release sorbed Al into solution. These observations suggest that sorption exchange processes dominate the geochemical interactions of Al in estuarine waters
 
Date 2009-01-25T05:52:55Z
2009-01-25T05:52:55Z
1995
 
Type Journal Article
 
Identifier Mar. Chem., Vol.51; 261-276p.
http://drs.nio.org/drs/handle/2264/2322
 
Language en
 
Rights Copyright [1995]. 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 Elsevier