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Not AvailableThe present study was conducted on heavy metal pollution of Yamuna river water in Agra region at sites viz., A1, A2, A3, A4 and A5 for summer and post-rainy seasons. Mean concentration of heavy metals followed the order Zn> Fe> Cu> Ni = Mn> Cr>Pb> Cd in summer and Zn> Fe>Mn> Cu> Ni> Cr>Pb> Cd in post rainy seasons.Zn and Cu were within permissible limit for drinking water quality at all sites in both seasons. Fe, Zn, Cr and Mn increased during post-rainy season against their covalent index. Mean heavy metal pollution index (HPI) for each sampling site reflected highest pollution at A4 site. Mean HPI for Yamuna water in summer (261) decreased conspicuously in post-rainy season (92.5). Metal quality index (MQI) values were highest at A4 site i.e., 23.15 in summer and 22.0 in post-rainy seasons. Pearson's analysis showed significant positive correlation among all heavy metals.Not Availabl