Water Quality Index for Surface Water Assessment by Using Gis Techniques, Alnajaf, Kufa, Iraq
Ali Kadhim Hussein, Nabeel Abbood Kadhim, Adil Shnawa Jaber, Ali Abid Abojassim
Abstract
Our study achieved in AL-Najaf province within kufa district which are consist of stream network, in dry season (2016), there are thirteen samples collected and six physicochemical parameter analyzed in laboratory of environment in surface water and agriculture directorate in AL-Najaf Province. Six physicochemical parameter like Ec (mmho/cm), TDS(mg/liter), Ca+2(mg/liter), Cl-(mg/liter), So4-2(mg/liter), and PH. For irrigation purpose Standards Iraq were used and inverse distance waited(IDW) interpolation has been used to make of six parameters spatial distribution map above. Raster calculator of Arc map GIS 10.2 software presented water quality index for surface water samples ranged between 53.5092 - 87.5235.