Physico-chemical properties of drinking water available in educational institutes of Karachi city
2013
Asadullah (Pakistan Council of Scientific and Industrial Research Labs., Karachi (Pakistan). Food and Marine Resources Research Centre) | Nisa, K. (Pakistan Council of Scientific and Industrial Research Labs., Karachi (Pakistan). Food and Marine Resources Research Centre) | Khan, S.I. (Pakistan Council of Scientific and Industrial Research Labs., Karachi (Pakistan). Food and Marine Resources Research Centre)
In order to investigate the physic-chemical quality, 780 water samples were collected from 490 educational institutes located in various areas of Karachi, during the period of May to September 2005. The parameters include pH, turbidity, total dissolve solids (TDS), hardness and conductivity that were varied from 3.2 to 8.7, 0.2 to 3.1 NTU (nephelometric turbidity unit), 79 to 1066 ppm, 69 to 558ppm and 96 to 1775 muS/cm, respectively. On the basis of pH 6%, taste 2.1%, turbidity 0%, TDS 2.5% and hardness 1.3%, of the samples were found out of acceptable limits of World Health Organization (WHO) guidelines. Moreover, the conductivity of the studied waters was found to be the multiple of 0.6001 to that of TDS (R2 = 0.987) when regression model was established.
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