Assessment of Water Quality in Tigris River of AL-Kut City, Iraq by Using GIS

The concerns about water contaminants affect most developing countries bypassing rivers over them. issue is challenging to introduce quality within the allowed limits for drinking, industrial and agricultural purposes. In present study, physical-chemical parameters measurements of samples taken from eleven stations were collected during six months in 2020 through flow path along whole length Tigris River inside AL Kut city (center Wassit government) investigated are total hardness TH, hydrogen ion pH, biological oxygen demand BOD5, dissolved solids TDS, nitrate NO3, sulfate SO4. analysis results compared with maximum allowable limit concentration recommended by World Health Organization WHO Iraqi limitation spastically; SO4 had an average value 421, 62, 813, 376 mg/l, respectively. spatial distribution studied area was carried out implementing Quantum Geography Information System QGIS technique established on Inverse Distance Weighted IDW method produce interpolation predicted maps river Al city. showed degraded increase concentrations observed all path, especially at last two due attributed human activities, land use industrialization, outfall sewerage directly without treatment. Spatial essential give a thorough understanding river's contamination reality. This makes it easier understand, analyze find appropriate treatments solutions problem quality.