Investigating the groundwater of Qorveh-Chaharduli plain in terms of drinking affected by environmental pollutions

Abstract

Groundwater resources contamination caused by environmental pollutions including both chemical fertilizers and industrial and domestic waste leachate is currently one of the most important environmental issues which has exposed the humans life to risk in some regions. The data of Qorveh plain located in Kurdistan were used in 10-year statistical periods (2002-2012). After selecting the best evaluated resources, considering the data accuracy and distribution, statistics reconstruction and control were conducted and after investigation of Kolmogorov-Smirnov test, it was found that, the data were not normal and consequently, the data logarithm was calculated to be normalized, then, the best variogram model was fitted to spatial structure of the data (SO4, Cl, Na, TDS and TH) using GS+ software. To draw the water zonation map according to Schuler, overlap of the five layers in ArcGIS was used. For the year 2012, most of the eastern parts of the plain (south east and north east) and a small part of the west, totally by an area of 200.2 km² have poor quality of water for drinking.