Geo-spatial assessment of tap water and air quality in Gilgit city using geographical information system

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Research Paper 01/12/2014
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Geo-spatial assessment of tap water and air quality in Gilgit city using geographical information system

Tehzeeb Hussain, Saima Sheikh, Jamil Hussain Kazami, Muhammad Hussain, Azhar Hussain, Najam Ul Hassan, Zahid Hussain, Hawas Khan
J. Bio. Env. Sci.5( 6), 49-55, December 2014.
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Abstract

Water and life are two sides of the same coin, since water sustains all life processes. The quality of water is of vital concern for mankind since it is directly linked with human health and environmental protection. This study focuses on mapping the quality of tap water using Geographical Information System (GIS) software. Thematic maps were generated on 1:50,000 scale using ArcGIS 10.1. The interpolation pattern of water quality is showing that the pH of Gilgit city was slightly acidic to slightly alkaline with normal electric conductivity. The minimum to maximum range of other water parameters was recorded as 7.22-7.58 calcium hardness, 3.45-96.41 calcium, 0.35-30.8 magnesium, 2.46-5.12 potassium, 1.525-4.09 sodium and 59.47- 65.4 mg/l TDS while E. coli 16.0- 225.94 CFU/l of water were recorded. The dispersion of air pollutants have shown interesting results and range of air quality parameter were recorded as carbon monoxide; 0.47-1.13 mg/m3, NO2 380.0-590 µg/m3, PM10 88.96 164.48 ug/m3 and hydrocarbons 3.7- 4.89.

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