Abstract

Shobha Chaturvedi¹, Praveen Jain¹, S.Ramachandran² and R. Chaturvedi²*

The distribution of heavy metals in the Kolar dam water was studied for a period of six months between April95 to October"95. Heavy metals which are of significant importance in potable water were determined using Atomic Absorption Spectrophotometer and uv-vis spectrophotometer. Among various metals analysed, the iron and manganese were found to present above the permissible limit of drinking water. Copper, zinc and lead were observed to be present much below the concentration permitted for drinking water. However, chromium was found to exceed the permissible limit at some instance*. The probability of presence of these metals is expected due to geological strata, decay and decomposition of vegetation in and around the area. Hypolimnion layer was shown to exhibit higher metal concentration as compared to epilimnion.

Kolar dam; Epilimnion; Hypolimnlon; Heavy Metals.

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