Assessment of Groundwater for Irrigation Using (IWQI) Model, Located in Al-Nimrud Region at Southeastern of Mosul City, Iraq

Abstract

The study aimed to understand the quality of groundwater in Al-Nimrud region south-eastern part of Mosul city, Iraq. Groundwater samples from 10 wells were collected during the dry season and analyzed for their physical and chemical properties using standard laboratory methods. From the analyzed data, some parameters like sodium adsorption ratio (SAR), sodium percentage (Na%), potenial salinity (PS), residual sodium carbonate (RSC), magnesium adsorption ratio (MAR), permeability index (PI) and Kellys ratio (KR) were calculated for each water sample to know the irrigational fitness and irrigation water quality index (WQI) was applied to the analytical results of the parameters to obtain a single value that was used to rank the groundwater at each well for agricultural uses. The results showed a high levels of salts for most of the water samples studied, where the average values of EC ranged between (1.64 to 5.069) dS. m -1 . Also, the estimated parameters such as Na%, SAR, PI, KR were within the appropriate levels for irrigation, while the values of MAR, PS for most of the samples were within the inappropriate limits for irrigation. Also, the results of the WQI values showed that the groundwater quality falls between the category of severe to low restrictions, therefore the use of most of the water for irrigation in the study area is likely to lead to the problem of salinity in soils with heavy texture.

Water Quality Assessment Using the Pollution Index Model (Pij) for Irrigation Purposes. A Case Study: Dohuk Valley Water in Northern Iraq

“…Table (5) shows that the values of SAR, %Na and RSC ranged between (0.40 to 1.600), (12.00 to 25.50) and (-0.20 to -5.50) sequentially. This indicates that there are no problems for SAR, %Na and RSC when this water is used for irrigation (Al-Saffawi et al, 2021b).…”

“…Sodium and potassium ions using a flame-Photometer (APHA 1998(APHA , 2017. The irrigation parameters were also calculated using the following equations (Xu et al, 2019;Chegbeleh et al, 2020;Al-Saffawi, et al, 2020ab):…”

“…II. Permeability and Infiltration Hazard occurs when using water with high levels of sodium (expressed in SAR); Sodium works to break down soil aggregates and disperse fine particles, which leads to blockage of soil pores, and the most important factors affecting permeability are salinity and the sodium adsorption ratio SAR (Al-Saffawi et al, 2020B;Al-Sinjari and Al-Saffawi, 2018). III.…”

Sub-Index Model to Assess Groundwater Water Quality for Drinking and Civil Uses

“…Therefore, maximum efforts must be focused on building and advancing scientific and service institutions to solve problems of Pollution and waste of water resources, such as building dams on rivers and building water harvesting dams while rationalizing water consumption for all purposes and resolving outstanding problems with upstream countries diplomatically with establishing strong economic relations (AL-SARDAR; AL-SAFFAWI, 2019;SALEH et al 2020;EWAID et al, 2019).…”

Qualitative Assessment of Water Resources for Watering Livestock and Poultry: A Case Study of The Waters of Duhok Valley, Kurdistan Region of IRAQ

“…In general, the studies related to assessing the quality of drinking water for livestock and poultry are very few and rare in Iraq, but there are some studies related to this field, including 6 , study to assess the quality of water resources in the Nimrud district, southeast of Mosul city, for watering livestock and poultry using weighted mathematical models. The results of WQI values indicated that 70% of the water samples were of poor-quality water due to the high levels of salts, which amounted to (5069) uS.…”