Using the Canadian Water Index to assess the quality of surface water within the Euphrates River in Samawah city

Abstract

The study concluded that the water quality of the Euphrates River was evaluated within the city of Samawah for human uses, especially for drinking purposes, using the Canadian Water Quality Index (CCME WQI), where samples were collected from three locations on the Euphrates River in two time periods, the first in February and the second in August. The samples were analyzed in the laboratory by (11 elements), and in the field the water temperature was measured for each site. The measured elements were (dissolved oxygen, turbidity, hydrogen ion, electrical conductivity, total dissolved salts, calcium, magnesium, potassium, sodium, sulfates, chlorides) .

The study found that the values of most of the studied elements were high and exceeded the permissible limits of the Iraqi environmental determinants of the suitability of water for human use, with the exception of the values of dissolved oxygen, hydrogen ion and sodium element, which were within the permissible limits, which was reflected in the values of the Canadian Water Index (CCME WQI), where It ranged from (39.66) in February to (33.65) in August, and this indicates that the water quality of the studied sites falls within the category of poor quality for the purpose of drinking .