Evaluation of Tigris River water quality within Baghdad City using the CCME index for various purposes

Aquatic life Drinking water Freshwater ecosystem Sodium adsorption ratio

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August 25, 2024

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This study evaluated the Tigris River's water quality in Baghdad City for four different purposes, including drinking water supply, aquatic life, and agricultural requirements using Canadian WQI. The evaluation is based on data collected over 2021 and 2022. The parameters of water temperature, turbidity, total dissolved solids, pH, DO, nitrate, nitrite, ammonia, phosphate, chloride, fluoride, magnesium, calcium, sulfate, sodium, magnesium hazard (MH), and sodium adsorption ratio (SAR) were measured for index CCME calculation. The results indicated that water temperature and turbidity are the variables that crossed standard guidelines for aquatic life protection, ranked within fair quality. In contrast, water temperature, turbidity, and TDS are the variables that exceeded the allowable levels for overall water quality, mainly ranked within a good class. For drinking water purposes, turbidity and Ca are among the parameters that fall outside the acceptable limits, rated between marginal and fair class.