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Using (Iber) Hydrodynamic Model to Simulate the Flow of Polluted Water of Tigris River in Mosul City, Northern Iraq
Summary
Despite its title referencing water pollution, this paper uses a hydrodynamic model to simulate how dissolved salts from polluted valley streams mix into the Tigris River in Mosul, Iraq — not microplastic pollution. It examines total dissolved solids concentrations from industrial and sewage runoff and is not relevant to microplastics or human health.
Abstract Iber Model was used to simulates fresh water flow and pollutant transport in various aquatic environments, focusing on the main valleys in Mosul City that discharge into Tigris River. These valleys, including Al-Rashidia, Al-Kharrazi, Al-Khosar, Al-Danffilli, Al-Shor, and Eqab, are heavily polluted with solid waste, sewage, and industrial runoff, especially during the rainy season. Total dissolved solids (TDS) concentrations were measured, revealing levels of 520, 500, 670, 660, 1820, and 660 mg/L, respectively. Iber model showed that mixing Tigris River fresh water with valleys water reduces TDS concentrations downstream mouth valleys, with varying distances of impact based on discharge and pollution levels: 293 m from Eqab, 323 m from Al-Khosar, 280 m from Al-Danffilli, and 650 m from Al-Shor. Al-Rashidia and Al-Kharazi showed minimal impact due to their low discharge. Overall, the valleys' discharges do not pose a significant concern for Tigris River's dissolved salt content.
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