In this study research on the heavy metals concentrations in ground water samples of the Karur, Tiruchirappalli and Thanjavur districts of Tamil Nadu, India during April 2015 was done. Heavy metals were analyzed by using standard methods. Heavy metal concentration in ground water was in following order Fe > Zn > Cr > Cu > As > Hg > Pb > Cd (ppm). The high level of heavy metal (Iron) was recorded from Kundur ground water samples and low level of heavy metal (Lead) was recorded in Kundur and Mathur areas of ground water samples.
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