ASSESSMENT OF DRINKING WATER QUALITY IN GOVT. PRIMARY SCHOOLS OF DERA GHAZI KHAN
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Date
2021-07-14
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UMT.Lahore
Abstract
Water is the basic need and without water life is not possible. The study was carried out to
estimate the variability in drinking water of 2 different Tehsil and the city of Dera Ghazi
Khan. To evaluate chemical and biological analysis 66 samples were taken from two
Tehsils of D.G Khan. Samples of Tehsil Taunsa Sharif were more contaminated as
compared to the city samples which were less contaminated. Chemical tests (Ca, Mg,
Alkalinity and Cl) were performed against titration, sulphate and nitrates were performed
using Spectrophotometer. Heavy metal (As) test was performed through arsenic kit and
biological tests were performed through total plate count (TPC) and Eosin methylene blue
agar (EMB). Microbial contamination was found in most of the samples. Water collected
from hilly area was contaminated with heavy metal and those samples which were taken
from hand pumps had high TDS. In comparison, samples collected from Tehsil Taunsa
Sharif were unfit for drinking and did not comply PSQCA standards. The city water was
of good quality as per the standard of PSQCA. In this study, we observed that fertilizers,
geographical area, seepage of waste water is mainly responsible for compositional changes
in water.