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VOL. 7, ISSUE 2 (2025)
Assessment of groundwater quality in Rabia district/ Nineveh governorate/ Iraq, and Its suitability for irrigation purposes using the Canadian Water Quality Index (CWQI)
Authors
Abdulrahman Waad Hadlee, Abdulmoneim MA Kannah
Abstract
The current study involved the evaluation of several chemical and physical characteristics of
groundwater from wells located in the Rabia district, northwest of Mosul, and
determining their suitability for irrigation purposes. The Canadian Water
Quality Index (CWQI) was used to assess the quality of well water within the
study area. A total of 15 wells were selected in the center of the district and
its surrounding villages for study during the period from 20September 2024, to 20 February 2025. The depths of these wells ranged from 18 to 330 meters.
The electrical conductivity varied between 414 and 5760 microsiemens/cm,
depending on the abundance of ions present in the water. The pH values ranged
from 6.8to8.71, with well number )10(exhibiting a high pH value between 8.5 and 8.71 due to alkalinity
caused by carbonates. All water samples studied were classified within the
category (S1 - low sodium) according to the Sodium Adsorption Ratio (SAR). The
average percentage values of dissolved sodium indicated that approximately
93.3% of the studied well water was of excellent quality for irrigation, while
about 6.7% was of good quality for irrigation, indicating suitability for most
soil types and crops, except for those highly sensitive to sodium. The results
of the current study revealed variability in the Canadian Water Quality Index
(CWQI) values among the studied well samples. The measurements ranged between
44 and 83. Data analysis showed that 93.3% of the water samples belonged to the
good category, while the remaining 6.7% were classified as marginal.
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Pages:9-16
How to cite this article:
Abdulrahman Waad Hadlee, Abdulmoneim MA Kannah "Assessment of groundwater quality in Rabia district<i>/</i> Nineveh governorate<i>/</i> Iraq, and Its suitability for irrigation purposes using the Canadian Water Quality Index (CWQI)". International Journal of Environmental and Ecology Research, Vol 7, Issue 2, 2025, Pages 9-16
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