干旱区生态环境知识资源中心(Arid): Application of multi-hydrochemical indices for spatial groundwater quality assessment: Ziway Lake Basin of the Ethiopian Rift Valley

Arid

DOI	10.1007/s12665-021-10135-5
	Application of multi-hydrochemical indices for spatial groundwater quality assessment: Ziway Lake Basin of the Ethiopian Rift Valley
	Mechal, Abraham; Shube, Hassen; Godebo, Tewodros Rango; Walraevens, Kristine; Birk, Steffen
通讯作者	Mechal, A (corresponding author), Addis Ababa Sci Technol Univ, Mineral Explorat Extract & Proc, Ctr Excellence, POB 16417, Addis Ababa, Ethiopia.
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2022
卷号	81 期号:1
英文摘要	The Ethiopian Rift Valley (ERV) is characterized by arid and semi-arid climate with groundwater as the most important water resource used for drinking and irrigation purposes. However, in the region, people are suffering from severe water scarcity exacerbated by climate effect. Besides water availability, endemic water quality issues are critical and affect the suitability of the water and human health risks. The present study evaluates the suitability of groundwater for drinking and agricultural purposes in the Ziway Lake Basin (ZLB) of the ERV. Groundwater used for drinking contains multiple inorganic contaminants in levels that surpass the World Health Organization recommended limits. The most frequent of these violations were for Na+, K+, HCO3-, F- and few samples for Mn, As, U, Pb and Mo. The modeled Drinking Water Quality Index (DWQI) values of the groundwater show wide variation ranging from 12.7 (Excellent category) to 714 (Unsuitable category) with mean value of 94. Likewise, Irrigation Water Quality Index (IWQI) computed by considering EC, SAR, Na%, RSC and PI of the groundwater varies from 13.2 to 520 with a mean value of 106. Both DWQI and IWQI values suggest that groundwater is generally of Excellent quality for drinking and irrigation use in the headwater regions of the ZLB and progressively becomes extremely Unsuitable toward the rift floor. The exceptionally high DWQI values to the west of Lake Ziway is mainly associated with the co-occurrence of multiple toxic elements from a groundwater from the Quaternary sediments and rhyolitic volcanic aquifers.
英文关键词	Ziway Lake Basin Major ions Trace elements Water quality indices Ethiopian Rift Valley
类型	Article
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000734842700002
WOS关键词	WATER-QUALITY ; DRINKING-WATER ; HYDROGEOCHEMICAL PROCESSES ; SHALLOW GROUNDWATER ; IRRIGATION PURPOSES ; FLUORIDE EXPOSURE ; DENTAL FLUOROSIS ; SURFACE-WATER ; RIVER-BASIN ; EVOLUTION
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374373
作者单位	[Mechal, Abraham] Addis Ababa Sci Technol Univ, Mineral Explorat Extract & Proc, Ctr Excellence, POB 16417, Addis Ababa, Ethiopia; [Shube, Hassen] Adama Sci Technol Univ, Appl Geol Dept, POB 1888, Adama, Ethiopia; [Godebo, Tewodros Rango] Tulane Univ, Sch Publ Hlth & Trop Med, Dept Environm Hlth Sci, New Orleans, LA 70112 USA; [Walraevens, Kristine] Univ Ghent, Dept Geol, Lab Appl Geol & Hydrogeol, Krijgslaan 281 S8, B-9000 Ghent, Belgium; [Birk, Steffen] Karl Franzens Univ Graz, Inst Earth Sci, NAWI Graz Geoctr, Heinrichstr 26, A-8010 Graz, Austria
推荐引用方式 GB/T 7714	Mechal, Abraham,Shube, Hassen,Godebo, Tewodros Rango,et al. Application of multi-hydrochemical indices for spatial groundwater quality assessment: Ziway Lake Basin of the Ethiopian Rift Valley[J],2022,81(1).
APA	Mechal, Abraham,Shube, Hassen,Godebo, Tewodros Rango,Walraevens, Kristine,&Birk, Steffen.(2022).Application of multi-hydrochemical indices for spatial groundwater quality assessment: Ziway Lake Basin of the Ethiopian Rift Valley.ENVIRONMENTAL EARTH SCIENCES,81(1).
MLA	Mechal, Abraham,et al."Application of multi-hydrochemical indices for spatial groundwater quality assessment: Ziway Lake Basin of the Ethiopian Rift Valley".ENVIRONMENTAL EARTH SCIENCES 81.1(2022).