Impact of heavy metal contamination of Bellandur Lake on soil and cultivated vegetation

The aim of this study is to assess the extent of heavy metal contamination of vegetation due to irrigation with sewage-fed lake water on agricultural land. Samples of water, soil and crop plants have been analysed for seven heavy metals, viz. Fe, Zn, Cu, Ni, Cr, Pb and Cd using atomic absorption spe...

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Bibliographic Details
Published in:Current science (Bangalore) 2006-09, Vol.91 (5), p.622-627
Main Authors: Lokeshwari, H., Chandrappa, G. T.
Format: Article
Language:English
Subjects:
Agrology
Crops
Heavy metals
Lake water
Oryza sativa
Plants
Soil pollution
Soil samples
Soil water
Vegetables
Vegetation
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Summary:The aim of this study is to assess the extent of heavy metal contamination of vegetation due to irrigation with sewage-fed lake water on agricultural land. Samples of water, soil and crop plants have been analysed for seven heavy metals, viz. Fe, Zn, Cu, Ni, Cr, Pb and Cd using atomic absorption spectrophotometry. The results show the presence of some of the heavy metals in rice and vegetables, beyond the limits of Indian standards. Metal transfer factors from soil to vegetation are found significant for Zn, Cu, Pb and Cd. Comparing the results of heavy metals in water, soil and vegetation with their respective natural levels, it is observed that impact of lake water on vegetation was found to be more than the soil.
ISSN:0011-3891