Shatt Al- Kufa (Kufa River) is the major supply of surface waters in Najaf; Water pollution   as a result of human activities Different .Water pollution results when contaminants are introduced into the natural environment.  releasing inadequately treated wastewater into natural water bodies can lead to degradation of aquatic ecosystems  In turn, this can lead to public health problems for people living downstream. They may use the same polluted river water for drinking or bathing or irrigation. Water pollution is the leading worldwide cause of death and disease due to water-borne diseases. The method used for modelling the TSS spatial distribution is the empirical modelling Conversion From image pixel values to reflectivity the reflectivity of each TSS concentration was extracted the reflection (r) on the X axis and the TSS concentration on the Y axis were extracted. The purpose of this study is to determine the estimated concentration of total suspended solid (TSS) in the Shatt Al- Kufa as the result of   Landsat 8 OLI. As well  by correlating the measured and estimated TSS and  concentration the data used in this study was collected from Shatt Al- Kufa  (10 stations) on  22 April 2019. In conjunction with the Landsat 8 OLI image data, obtained from the USGS site. The results revealed value of TSS in Shatt Al- Kufa  can accurately using band 4 (red band).The determinant Coefficient between TSS field and reflectance value of image using band 4 is 0.785.Root Mean Square Error band 4 is 4.5225 ,mean relative error is 1.1649.

The current study was conducted in Najaf governorate within the Kufa district to measure the percentage of pollution (TSS) in the Euphrates River (Shatt Kufa) and the length of about 25 km. he purpose of this study is to determine the estimated concentration of total suspended solid in the Shat Kufa by Landsat 8 OLI. The data was distributed by the United States Geological Survey (USGS) and downloaded from Earth Explorer website (2018-12-15) using remote sensing data, the study samples were collected from (10)(2018 -12-22) starting from the north of Kufa - Zarka area to the south of Kufa bridge cement plant and a length of about 14.5 km. Most of the concentration of TSS spread across the northern and southern parts of the Shatt al-Kufa, as a result of cesspits, as well as the drainage of a number of waterways (the northern Kufa and Buhadi districts) directly to the Shat al-Kufa. The results of the analysis of correlation between reflectivity (r) for the degrees of remote sensing and TSS) in the laboratory of the Department of Environment \ Faculty of Sciences \ University of Kufa band (4) Highest correlation and accuracy reached: ((r=0.917,R2=0.840,RMSE=4.5225,MRE=1.1649) While the band (1) less coherent and accurate as it reached:( (r=0.562,R2=0.316,RMSE=5.4683 mg/l,MRE=1.5739%).