干旱区生态环境知识资源中心(Arid): Hydro-geochemical control of high arsenic and fluoride groundwater in arid and semi-arid areas: A case study of Tumochuan Plain, China

Arid

DOI	10.1016/j.chemosphere.2022.134657
	Hydro-geochemical control of high arsenic and fluoride groundwater in arid and semi-arid areas: A case study of Tumochuan Plain, China
	Dong, Shaogang; Liu, Baiwei; Chen, Yue; Ma, Mingyan; Liu, Xiaobo; Wang, Chao
通讯作者	Liu, BW
来源期刊	CHEMOSPHERE
ISSN	0045-6535
EISSN	1879-1298
出版年	2022
卷号	301
英文摘要	Globally, groundwater with high fluoride and arsenic receives extensive concern because of its wide distribution and great harm to human health caused by drinking water. In this paper, taking Tumochuan Plain in China as an example, based on hydrogeological investigation, groundwater flow system theory and hydro-chemical analysis methods were applied to reveal the mechanism of high fluoride and high arsenic in arid and semi-arid regions. In unconfined and confined groundwater of Tumochuan Plain, the highest concentration of fluoride is 7.2 and 11.2 mg/L respectively, and the highest concentration of total arsenic is 200.3 and 162.3 mu g/L respectively. Fluoride in groundwater is mainly derived from the soluble fluoride in soil and aquifer medium. Because of the water-rock interaction, the alkaline environment caused by the hydrolysis of feldspar minerals in the central part of the plain has an important influence on the accumulation of F and As in this area. High fluoride water is formed in the alkaline environment (high pH values) of high concentration of Na+ and low concentration of Ca2+. The high arsenic groundwater is distributed in the alkaline reducing environment that the content of soluble salt in aquifer media is high (>200 mg/100 g dry soil). The reductive dissolution of iron and manganese oxides and competitive adsorption of HCO3- all contribute to a high level of arsenic in both unconfined and confined aquifers. The research results have important guiding significance for water supply safety and water quality improvement in arid-semiarid areas in the world with high fluoride and high arsenic groundwater distribution.
英文关键词	Groundwater Water-rock interaction High fluoride and arsenic water Tumochuan plain
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000793671200001
WOS关键词	CHACO-PAMPEAN PLAIN ; TRACE-ELEMENTS ; LATIN-AMERICA ; HETAO BASIN ; AQUIFERS ; CONTAMINATION ; MECHANISM ; REGION ; WATER ; MOBILIZATION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392135
推荐引用方式 GB/T 7714	Dong, Shaogang,Liu, Baiwei,Chen, Yue,et al. Hydro-geochemical control of high arsenic and fluoride groundwater in arid and semi-arid areas: A case study of Tumochuan Plain, China[J],2022,301.
APA	Dong, Shaogang,Liu, Baiwei,Chen, Yue,Ma, Mingyan,Liu, Xiaobo,&Wang, Chao.(2022).Hydro-geochemical control of high arsenic and fluoride groundwater in arid and semi-arid areas: A case study of Tumochuan Plain, China.CHEMOSPHERE,301.
MLA	Dong, Shaogang,et al."Hydro-geochemical control of high arsenic and fluoride groundwater in arid and semi-arid areas: A case study of Tumochuan Plain, China".CHEMOSPHERE 301(2022).