Journal of Himalayan Earth Sciences Volume 51, No. 1, 2018 pp. 113-126 Assessment of heavy metals and physico-chemical characteristics of water and sediments, Kurram River (Pakistan) Jawad Ali1, Muhammad Amjad Khan1, Shahla Nazneen1, Juma Muhammad1,2, Muhammad Jamal Nasir3, Muhammad Tahir Shah4,5*, Zahidullah6 and Sardar Khan1* 1Department of Environmental Sciences, University of Peshawar 2Department of Environmental Sciences, University of Sheringle, Dir 3Department of Geography, University of Peshawar 4National Center of Excellence in Geology, University of Peshawar 5FATA University, Darra Adam Khel, FR Kohat 6Department of Environmental Science, Allama Iqbal Open University, Islamabad *Corresponding authors email:
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[email protected] Abstract This study was conducted to analyze water and sediment samples of Kurram River from upstream to downstream to observe the trend of changes in physico-chemical properties like pH, E.C, TSS, TDS, Ca, K, Mg and Na and heavy metal concentrations (Cr, Zn, Cu, Ni, Pb, Cd, Mn and Fe). The results of the study revealed that Kurram River quality is continuously degrading day by day by entry of toxic metals from different sources like discharge from industries, municipalities, waste dumping in the vicinity of the river, urban and agriculture runoff and atmospheric deposition. A decrease in water and sediments contamination level was observed down the stream. The physico-chemical parameters of water samples were observed within the permissible limits of World Health Organization (WHO), except for dumping sites near Ghori wala and Sikna Sikander Khel. TDS concentrations (553 mg L-1) and TSS concentrations (6.60 mg L-1) were above the permissible limits of United States Environmental Protection Agency (USEPA).