Abstract
This study was conducted in areas of KuzKunda, Ghat and KwaroTangi, Madyan Union Council of the rural Swat with the aims to assess the potable drinking water quality after the devastating flood of 2010, in the valley. For doing this forty samples of the spring water were collected from different ground water sources, i.e. tube wells, springs, dug wells and hand pumps in the area. These samples were analyzed for physical and chemical parameters including heavy metals Plumbum (Pb), Zinc (Zn), Nickel (Ni) and Chromium (Cr) and the results were compared with international standards of the World Health Organization (WHO). According to standards of WHO the pH, EC, total dissolves solids and Turbidity of spring water in all villages were in fewer amounts. But the concentration is higher than the standard of WHO in KuzKunda and KwaroTangi. Findings also show that most of the physio-chemical parameters, i.e. total suspended solids, pH, salinity, total dissolved solids, chloride, sodium, potassium and zinc were, according to the international standard limits of WHO, while electrical conductivity, alkalinity, hardness, lead, chromium, nickel, calcium and magnesium were above the international standard of WHO. This is due to heavy metal contamination in the study area with mix zone rocks. These above limits of the mentioned ions lead to the unsafe drinking water quality of the Madyan area. The study recommends that the drinking spring water was generally of good quality, but it’s better to be chlorinated and boiled before use.
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