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Articles by Tahir Sarwar
Total Records ( 2 ) for Tahir Sarwar
  Aamir Ilyas and Tahir Sarwar
  Research study was conducted bfrom February to May 2002 to evaluate the ground water quality in residential areas along the Palosi drain Peshawar. The focus of study was to evaluate the drinking water quality and to assess the influence of waste water in Palosi drain on ground water in its adjacent areas. Water sample were collected from selected shallow wells, deep wells as well as from wastewater in the drain. The water samples were analyzed for pH, EC, Turbidity, Ca, Mg, DO, BOD (only wastewater) and total coliforms. To determine the level of purity in drinking water the results were compared with WHO standards for drinking water and to assess the level polllution in drain water the results were compared withed with National Environmental Quality Satndards (NEQS). The results were indicated that Average pH and EC of drinking water were 7.8 and 0.62 dSm-1, respectively. Drinking water had low trubidity and high dissolved oxygen. Only problem found in drinking water was coliform bacteria as it crossed the limit of WHO in some areas. Average concentrationof Ca and Mg (16.2 and 48.4 mg/l) were within the WHO limits. However, average number of bacteria foud in drinking water was 2/100ml, which according to HMSO (1970) is satisfactory condition if not alarming. Wastewater had high trubidity, low DO and high BOD, which proved the presence of high amount of organic and other particulate matter. Wastewater also had large number of coliforms due high amount of domestic wastewater. On the basis o results it may be concluded thet ground water in area was of generally good and wastewater in drain had apparently little or no effect on the shallow wells.
  Aamir Ilyas and Tahir Sarwar
  Research study was conducted from January to May, 2002 in residential areas along the Palosi Drain, Peshawar. Main objective of the study was to evaluate water quality of shallow and deep wells in the vicinity of Palosi Drain. For this purpose, 20 water samples were taken 13 from shallow wells, 3 from deep wells and 4 from wastewater in the Palosi Drain. Water samples were analyzed for heavy metals or trace elements (Cd, Pb, Ni, Cu, Fe, Zn, Mn). The results indicated that heavy metals such as Cd, Ni and Pb caused problem at some locations due to their elevated concentrations (0.04, 0.38 and 0.29 mg l‾1, respectively) as compared to WHO`s drinking water standards. The reason could be the corrosion of plumbing fixture and piping fixtures. However, other trace elements such as Cu, Fe, Zn and Mn were not a problem as their average concentrations (0.20, 0.30, 0.40 and 0.16 mg l‾1, respectively) were within the WHO`s drinking water standards. It may be concluded that drinking water was generally of good quality and wastewater did not affect the water quality of shallow wells.
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