Assessment of Drinking Water Quality in Meshginshahr Plain Using Groundwater Quality Index (GQI)

عزیزی مبصر, جوانشیر and رسول‌زاده, علی Assessment of Drinking Water Quality in Meshginshahr Plain Using Groundwater Quality Index (GQI). In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

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Abstract

In Schuler method, drinking water quality is investigated individually and separately by examining the spatial variations of eight qualitative parameters. Since, in most cases, the study of spatial variations of drinking water quality requires the concentration of all water quality parameters to be considered, Therefore, in this study, using groundwater quality index (GQI), the combined effects of qualitative parameters on groundwater drinking ability of Meshginshahr plain were investigated. In this method, after preparing raster maps for concentration of chemical parameters affecting drinking water quality (TDS, SO4, Mg, Ca, Na and Cl), considering permissible values of these parameters based on WHO standard and by communicating between WHO standard values and Qualitative parameters (X) of raster index C (X) were prepared. In this method, any parameter index values approaching negative one indicates better quality of water in terms of qualitative parameter X. Based on this, it can be seen that in all parameters, the potable water of middle and southern parts of Moshginshahr plain as compared to the southwest, northeast and north parts of the plain.

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