干旱区生态环境知识资源中心(Arid): Characterization of Atmospheric Bulk Deposition: Implications on the Quality of Rainwater Harvesting Systems in the Semi-Arid City of Mekelle, Northern Ethiopia

Arid

DOI	10.1007/s40710-016-0133-7
	Characterization of Atmospheric Bulk Deposition: Implications on the Quality of Rainwater Harvesting Systems in the Semi-Arid City of Mekelle, Northern Ethiopia
	Taffere, Getachew Redae; Beyene, Abebe; Vuai, Said A. H.; Gasana, Janvier; Seleshi, Yilma
通讯作者	Taffere, GR
来源期刊	ENVIRONMENTAL PROCESSES-AN INTERNATIONAL JOURNAL
ISSN	2198-7491
EISSN	2198-7505
出版年	2016
卷号	3 期号:1 页码:247-261
英文摘要	It is estimated that about 1.2 billion people, mostly in arid and semi-arid regions of the Middle East and Africa, live in regions where water is physically scarce. Recently, rainwater harvesting and more effective water storage are suggested as important means for investment to cope against water scarcity and as an adaption to climate change. Cognizant of this fact, contribution of atmospheric deposition contaminant to rainwater harvesting systems, in the semi-arid city of Mekelle was investigated at four locations (industrial, commercial, traffic and residential areas). A total of 24 bulk samples were collected during the rainy season from May to September 2014. Physicochemical water quality analysis was performed following standard protocols. The results revealed that alkaline pH (6.95-10.29) was recorded in all the locations, with a mean pH of 8.11. The major ions analysis indicated the dominance of bicarbonates and carbonate types and to some extent sulfate and chloride type mixtures justifying the source of alkaline pH. Mean concentrations of ions follow the order of SO42- > Ca2+ > Mg2+ > CI- > NO3- > Na+ > NH4+ > K. Correlation between SO42- and NO3- (r = 0.436), and Mg2+ and K+ (r = 0.707) suggested their anthropogenic and crustal origin, respectively, while the correlation between NH4+ with Ca2+ and Mg2+ ascribed their role in alkalization of the rainwater. Moreover, principal component analysis showed spatiotemporal variation of atmospheric bulk components in the study area. Thus, this primary investigation demonstrated that atmospheric bulk deposition might pose public health risk due to poor rainwater quality in Mekelle city. Therefore, development of rainwater harvesting systems for semi-arid urban centers should be supplemented with low-cost water treatment technologies.
英文关键词	Rainwater harvesting Principal component analysis Atmospheric deposition Rainwater quality Mekelle city
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000446216700015
WOS关键词	CHEMICAL-COMPOSITION ; WATER-QUALITY ; URBAN SITE ; SOURCE APPORTIONMENT ; DRY DEPOSITION ; PRECIPITATION ; WET ; HYDROCHEMISTRY ; CHEMISTRY ; SULFATE
WOS类目	Engineering, Environmental
WOS研究方向	Engineering
Scopus学科分类	Hawassa Univ, Dept Publ & Environm Hlth, POB 1560, Hawassa, Ethiopia.
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332016
作者单位	[Taffere, Getachew Redae] Addis Ababa Univ, Ethiopian Inst Water Resources, POB 150461, Addis Ababa, Ethiopia; [Taffere, Getachew Redae] Hawassa Univ, Dept Publ & Environm Hlth, POB 1560, Hawassa, Ethiopia; [Beyene, Abebe] Jimma Univ, Dept Environm Hlth Sci & Technol, POB 378, Jimma, Ethiopia; [Vuai, Said A. H.] Univ Dodoma, Sch Math Sci, Coll Nat & Math Sci, POB 338, Dodoma, Tanzania; [Gasana, Janvier] Florida Int Univ, Environm & Occupat Hlth Epidemiol Med, Robert Stempel Coll Publ Hlth & Social Work, AHC5-350 11200 SW 8 St, Miami, FL 33199 USA; [Seleshi, Yilma] Addis Ababa Univ, Sch Civil & Environm Engn, AAiT, POB 385, Addis Ababa, Ethiopia
推荐引用方式 GB/T 7714	Taffere, Getachew Redae,Beyene, Abebe,Vuai, Said A. H.,et al. Characterization of Atmospheric Bulk Deposition: Implications on the Quality of Rainwater Harvesting Systems in the Semi-Arid City of Mekelle, Northern Ethiopia[J],2016,3(1):247-261.
APA	Taffere, Getachew Redae,Beyene, Abebe,Vuai, Said A. H.,Gasana, Janvier,&Seleshi, Yilma.(2016).Characterization of Atmospheric Bulk Deposition: Implications on the Quality of Rainwater Harvesting Systems in the Semi-Arid City of Mekelle, Northern Ethiopia.ENVIRONMENTAL PROCESSES-AN INTERNATIONAL JOURNAL,3(1),247-261.
MLA	Taffere, Getachew Redae,et al."Characterization of Atmospheric Bulk Deposition: Implications on the Quality of Rainwater Harvesting Systems in the Semi-Arid City of Mekelle, Northern Ethiopia".ENVIRONMENTAL PROCESSES-AN INTERNATIONAL JOURNAL 3.1(2016):247-261.