The current study will be used to identify the water pollution rates in the Al-Diwaniyah River (Shatt Al-Diwaniyah) located in Al-Diwaniyah District and to assess the effects of water pollution on agricultural crops. The research was based on the thorough collection of information, statistics, received in respect to the official bodies of interest and the field research that assumed the gathering of the information and water samples at the different points of the river. The samples have been georeferenced with the help of GPS machine and have been studied at the chemical laboratory. Furthermore, Geographic Information Systems (GIS) were used to draw a group of thematic maps, which were vital to the study. 

The findings indicated that there is an issue of a high level of temperature in the water of the Al-Diwaniyah River with the highest of 34.2 C recorded in July and the lowest of 10.3 C recorded in January. This thermal rise had serious impacts on concentrations of other parameters especially the electrical conductivity (EC), which was up to 3,465 -1 cm. As compared to the limits set by the Islamic Educational, Scientific and Cultural Organization (ISESCO), it was discovered that pH, potassium (K), sodium (Na) and sulfates (SO 4 ) concentrations in the considered locations make the water not suitable to be used in the irrigation process. Nonetheless, the total dissolved solids (TDS) in the examined sites were identified to be within the acceptable range based on the category of the U.S. Salinity Laboratory (USSL).

Water Pollution, Al-Diwaniyah River, Agricultural Impact

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