Quality Assessment of Ground Water in Dhamar City, Yemen
Chemical and statistical regression analysis on groundwater at five fields (17 sampling wells) located in Dhamar city, the central highlands of Yemen, was carried out. Samples were collected from the ground water supplies (tube wells) during the year 2015. Physical parameters studied include (values between bracket s represents the measured mean values) temperature (T, 25°), total dissolved solids (TDS, 271.47), pH (7.5), and electrical conductivity (EC, 424.18). The chemical parameters investigated include total hardness (TH, 127.45), calcium (Ca2+, 32.89), magnesium (Mg2+, 11.03), bicarbonate (HCO3̶, 143.84), sulphate (SO42-, 143.84), sodium (Na+, 35.11), potassium (K+, 6.28) and Chloride (Cl ̵, 22.69). The results were compared with drinking water quality standards issued by Yemen standards for drinking water. Except for T° and pH, all other measured parameters fall below the minimum permissible limits. The correlation between various physio-chemical parameters of the studied water wells was performed using Principal Component Analysis (PCA) method. The obtained results show that all water samples are potable and can be safely used for both drinking and irrigation purposes. This comes in agreement with the public notion about groundwater of Dhamar Governorate. Sodium Absorption Ratio (SAR) values were calculated and found below 3 except for one drill. The results revealed that systematic calculations of correlation coefficients between water parameters and regression analysis provide a useful means for rapid monitoring of water quality.
International Journal of Environment
Volume-6, Issue-4, Sep-Nov 2017, page: 56-71
Copyright (c) 2018 International Journal of Environment
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
The author(s) acknowledge that the manuscript submitted is his/her/their own original work; all authors participated in the work in a substantive way and are prepared to take public responsibility for the work; all authors have seen and approved the manuscript as submitted; the manuscript has not been published and is not being submitted or considered for publication elsewhere; the text, illustrations, and any other materials included in the manuscript do not infringe(plagiarism) upon any existing copyright or other rights of anyone.
Notwithstanding the above, the Contributor(s) or, if applicable the Contributor’s Employer, retain(s) all proprietary rights other than copyright, such as Patent rights; to use, free of charge, all parts of this article for the author’s future works in books, lectures, classroom teaching or oral presentations; the right to reproduce the article for their own purposes provided the copies are not offered for sale.
The copyright to the contribution identified is transferred to IJE.