Abstract

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 2020-2021, 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 45-48 at all sites, while this index values was poor- marginal categories which ranged from 37-50 for all season. The water quality index values was poor category for drinking purposes which were recorded from 40 -42 for all sites, also it was poor category which was ranging from 31-44 for all season. The values of this index for aquatic life was in the poor-marginal category which ranging from 38-61 for all sites and in the marginal- fair categories which ranging from 61-67 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