干旱区生态环境知识资源中心(Arid): Seasonal Variations in Groundwater Quality and Hydrogeochemistry in the Endemic Areas of Chronic Kidney Disease of Unknown Etiology (CKDu) in Sri Lanka

Arid

DOI	10.3390/w13233356
	Seasonal Variations in Groundwater Quality and Hydrogeochemistry in the Endemic Areas of Chronic Kidney Disease of Unknown Etiology (CKDu) in Sri Lanka
	Imbulana, Sachithra; Oguma, Kumiko; Takizawa, Satoshi
通讯作者	Imbulana, S (corresponding author), Univ Tokyo, Dept Urban Engn, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan. ; Imbulana, S (corresponding author), Kyoto Univ, Grad Sch Global Environm Studies, Dept Technol & Ecol, Sakyo Ku, Yoshida Honmachi, Kyoto 6068501, Japan.
来源期刊	WATER
EISSN	2073-4441
出版年	2021
卷号	13 期号:23
英文摘要	Groundwater quality and geochemical processes were investigated in the endemic areas of chronic kidney disease of unknown etiology (CKDu) in Sri Lanka. Representative groundwater samples (n = 60) were collected from 30 dug wells located in the Anuradhapura district, over the dry and wet seasons. The samples were analyzed for pH, electrical conductivity (EC), total dissolved solids (TDS), alkalinity, major cations and major anions. Calcium-magnesium-bicarbonate ion combinations are predominant in this groundwater, and the simultaneous occurrence of high hardness (382-394 mg/L as CaCO3), alkalinity (364-379 mg/L as CaCO3) and ionicity is a salient characteristic. Alkalinity, TDS, hardness, and magnesium exceeded the safe limits for drinking in over half of the samples, regardless of the season. The major ion chemistry (Ca2+, Mg2+, Na+ and HCO3-) is primarily governed by the weathering of carbonate and silicate minerals, ion exchange, and evaporation which is accelerated by the semi-arid climate. Fluoride and chloride inputs are regulated by dissolution of fluoride-bearing minerals and anthropogenic causes, respectively. Saturation indices suggested supersaturation of carbonates and silicates, and undersaturation of evaporites and fluorite. Persistent high ionicity, and hardness of groundwater that is seldom impacted by seasonal variations might be playing a vital role in the genesis of CKDu.
英文关键词	drinking water rural water supply water-related diseases water and health
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000735072300001
WOS关键词	GEOCHEMICAL CHARACTERISTICS ; WATER-QUALITY ; DRY ZONE ; IDENTIFICATION ; FLUORIDE ; ISOTOPE ; CHEMISTRY ; EVOLUTION ; AQUIFERS ; DISTRICT
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/373933
作者单位	[Imbulana, Sachithra; Oguma, Kumiko; Takizawa, Satoshi] Univ Tokyo, Dept Urban Engn, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan; [Imbulana, Sachithra] Kyoto Univ, Grad Sch Global Environm Studies, Dept Technol & Ecol, Sakyo Ku, Yoshida Honmachi, Kyoto 6068501, Japan
推荐引用方式 GB/T 7714	Imbulana, Sachithra,Oguma, Kumiko,Takizawa, Satoshi. Seasonal Variations in Groundwater Quality and Hydrogeochemistry in the Endemic Areas of Chronic Kidney Disease of Unknown Etiology (CKDu) in Sri Lanka[J],2021,13(23).
APA	Imbulana, Sachithra,Oguma, Kumiko,&Takizawa, Satoshi.(2021).Seasonal Variations in Groundwater Quality and Hydrogeochemistry in the Endemic Areas of Chronic Kidney Disease of Unknown Etiology (CKDu) in Sri Lanka.WATER,13(23).
MLA	Imbulana, Sachithra,et al."Seasonal Variations in Groundwater Quality and Hydrogeochemistry in the Endemic Areas of Chronic Kidney Disease of Unknown Etiology (CKDu) in Sri Lanka".WATER 13.23(2021).