Assessment of the water quality of the mollusa community in the Janabi River-Hayy City of Wasit Province by using Canadian water quality index

The Canadian Environment Council Water Quality Index (CCME-WQ) of the Janabi River water at Hayy City in Wasit Province has been assessed and analysis for over all, drinking water and aquatic life and the impact of the river environment on presence and mollusca community. The samples were collected monthly during ۲۰۲۰-۲۰۲۱, Most of the variables exceeded the Iraqi and global permission limits. It was clear that this index values was marginal category for over all purposes which ranged from ۴۵-۴۸ at all sites, while this index values  was poor- marginal categories which ranged from ۳۷-۵۰ for all season. The water quality index values  was poor category for drinking purposes which were recorded from ۴۰ -۴۲ for all sites, also it was  poor category which was ranging from ۳۱-۴۴ for all season. The values of this index for aquatic life was in the poor-marginal category which ranging from ۳۸-۶۱ for  all sites and  in the marginal- fair categories which ranging from ۶۱-۶۷ for  all season. Nine species of mollusca was identified belonging to seven families. Two species of Melanopsidae and Cyrenidae and one species for Thiaridae, Physidae, Neritidae, Dressseinidae and Unionnoidae. It was concluded that the water of the Janabi River was highly polluted and undrinkable water characterized, as well as, it’s a clearly appeared impact of the river water quality on the mollusca densities.

Keywords:

Canadian Water Quality , Janabi River , Mollusca