Assessment of groundwater quality in the Al- Burayhi and Hedran sub-basin, Taiz, Yemen – A GIS approach

Abstract

Abstract. In many parts of the world, groundwater sources are the single most important supply for the production of drinking water, particularly in areas with limited or polluted surface water sources. Fresh water has become a scarce commodity due to over exploitation and pollution of water. Many countries and international organizations, including Wolrd Health Organization, are seeking to promote people's access to safe drinking water. The situation in Yemen is no exception. Although we rely on groundwater significantly in our lives and our survival, we do not manage it in a way that ensures its sustainability and maintenance of pollution. The objective of this study is to determine the suitability of the groundwater in Al Burayhi and Hedran sub-basin (one of the sub-basins of the Upper Valley Rasyan) as a source of drinking water in the shade of the expected deterioration due to natural processes (water interaction with rocks, semi-dry climate) and human activities. Keywords: assessment of groundwater quality, the spatial distribution of groundwater pollution, Al Burayhi and Hedran sub-basin, Taiz and Yemen.

Assessment of the Level of Physicochemical and Microbiological Contamination of Groundwater in Parts of Bir Nasser and Bir Ahmed Water Fields in Tuban Delta in Aden and Lahej Governorates - Yemen

“…On the other hand, the results obtained in the current study are lower than the obtained by [44], reported high concentrations of F -, included 71% of the groundwater in the AL-Dhala basin, Yemen. And also [4] reported high concentrations of F-by 82.9% of the groundwater in the Hidhran Al Burayhi Basin, northwest Taiz City, Yemen.…”

“…The method of collection, preparation, preservation and analyzed were similar to those reported in previous studies [4,12,13,14], and Standard methods for the examination of water and wastewater American Public Health Association [15]. The physicochemical and biological characteristics of groundwater samples were compared with the guideline values for drinking water as defined by [16] and [17].…”

“…Yemen's consumers water are mainly rely on groundwater, which suffers from the dangers of environmental pollution and threaten this resource, result of the lack of coverage of cities with sewage networks projects. Besides, dependence a large proportion of housing, hospitals and factories on the unlined cesspits whose wastewater seeps from it into the aquifers [2], n addition to , the desertification increase, the getting rid of the waste into the channels and streams of torrents, and the lack of rain [3].On the other hand, the amounts of extracted water from the ground are much higher than the amounts of recharge water for underground reservoirs, as well as population increases and migration from villages to the city lead to pressure on water resources and contribute to their depletion [4].…”

GIS and Statistical Evaluation of Fluoride Content in Southern Part of Upper Rasyan Aquifer, Taiz, Yemen

“…for different regions of the world [14]. The source of water supplies in Yemen is mostly from groundwater accumulated during previous and current times [15]. Fluorosis continues to be an endemic problem in Yemen.…”

Assessment of nitrogen pollution of groundwater in the Maamora Gharb aquifer, Morocco

“…One third of the world's population depends on groundwater and about 40% of the world's food production uses groundwater. In areas with low annual rainfall and a long dry season, underground reservoirs play a major role in satisfying the supply of drinking water (Li et al, 2018;Naser et al, 2018).…”