Distribution of Cr, Pb, Cd, Zn, Fe and Mn in Lake Victoria sediments, East Africa
- Univ. of Nairobi (Kenya)
The presence of many metals at trace or ultra-trace levels in the human environment has received increased global attention. Sediments as a sink for pollutants are widely recognized pollution sources and diagenesis and biochemical transformations within the sediment may mobilize pollutants posing a threat to a wider biological community. The natural (background) concentrations of heavy metals in lake sediments can be estimated either by analysis of surface sediments in non-polluted regions or by analysis of core samples antedating modern pollution. The distribution pattern of heavy metals in tropical freshwater systems has been little studied. The authors found increased concentrations of lead and other trace metals in Lake Victoria. Thus this study was initiated in order to further investigate the distribution patterns of lead and other metals in Lake Victoria.
- OSTI ID:
- 7244954
- Journal Information:
- Bulletin of Environmental Contamination and Toxicology; (USA), Vol. 42:6; ISSN 0007-4861
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
METALS
SPATIAL DISTRIBUTION
SEDIMENTS
QUANTITATIVE CHEMICAL ANALYSIS
ABSORPTION SPECTROSCOPY
CADMIUM COMPOUNDS
CHROMIUM COMPOUNDS
IRON COMPOUNDS
KENYA
LAKES
LEAD COMPOUNDS
MANGANESE COMPOUNDS
ZINC COMPOUNDS
AFRICA
CHEMICAL ANALYSIS
DEVELOPING COUNTRIES
DISTRIBUTION
ELEMENTS
SPECTROSCOPY
SURFACE WATERS
TRANSITION ELEMENT COMPOUNDS
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)