Abstract
This work deals with the monitoring and assessment of water quality of the Tigris River within Baghdad. Samples were taken monthly from September 2018 till August 2019 for a year, from eleven sites in Baghdad city. The National Sanitation Foundation Index (NSF-WQI) values of river water deteriorated from “medium” to “bad” to “very bad” in almost all the eleven sampling sites. The water quality is found to be most deteriorate during the summer season with an average NSF-WQI value of 34.9 as compared to spring, winter and autumn seasons, having an average NSF-WQI value of 40.8, 43.1 and 44, respectively. Out of the eleven sampling sites, Al-Wathba site (S7) and Al-Rasheed site (S11) is observed to be the most polluted sites. The metal pollution index (MI) model is categorized the water quality of the Tigris as seriously affected where the Iron (Fe) and Lead (Pb), are prominent parameters and most deteriorated in this model. Based on these indices, it is concluded that industrial facilities, city wastewater and intensives communities that living along the river bank are negatively affecting the water quality of the Tigris River.
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