Possible role of estuarine sediments in mitigation of mercury loading in biological systems

Concentration of mercury was estimated in samples of water, bottom sediments and fish from Ennore Estuary during 1982-83. The uptake of mercury from water by fish is about 400 times. The concentration of Hg in water is 0.0012 mu g/ml while its level in bottom sediment is 0.6 mu g. The higher concent...

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Bibliographic Details
Published in:Indian journal of marine sciences 1991-12, Vol.20 (4), p.286-288
Main Author: JOSEPH, K. O
Format: Article
Language:English
Subjects:
Animal, plant and microbial ecology
Applied ecology
Biological and medical sciences
Brackish
Ecotoxicology, biological effects of pollution
Fundamental and applied biological sciences. Psychology
Marine and brackish environment
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Summary:Concentration of mercury was estimated in samples of water, bottom sediments and fish from Ennore Estuary during 1982-83. The uptake of mercury from water by fish is about 400 times. The concentration of Hg in water is 0.0012 mu g/ml while its level in bottom sediment is 0.6 mu g. The higher concentration of Hg and soil substrate is attributable largely to fine particulate organic carbon which is 1.2%. The higher fraction of organic carbon has thus a possible role in binding Hg to soil in larger measure than what it releases to water.
ISSN:0379-5136
0975-1033