干旱区生态环境知识资源中心(Arid): Investigating sources, driving forces and potential health risks of nitrate and fluoride in groundwater of a typical alluvial fan plain

Arid

DOI	10.1016/j.scitotenv.2021.149909
	Investigating sources, driving forces and potential health risks of nitrate and fluoride in groundwater of a typical alluvial fan plain
	Xiao, Yong; Hao, Qichen; Zhang, Yunhui; Zhu, Yuchen; Yin, Shiyang; Qin, Limao; Li, Xiaohan
通讯作者	Hao, QC (corresponding author), Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang 050061, Hebei, Peoples R China.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2022
卷号	802
英文摘要	Groundwater of alluvial fan plains is the foremost water source, especially in arid/semiarid regions. Its contaminants are big issues for water supply and public health concern. To reveal the groundwater chemistry, contaminants sources and health threats in alluvial aquifers, 81 groundwaters were collected from a typical alluvial fan plain of northern China for nitrogen, fluoride and major ions analysis. Statistical analysis and hydrochemical diagrams as well as human health risk assessment were performed. Nitrate is widely distributed and 53% of groundwaters exceed the permissible limit with the maximum concentration up to 326 mg/L. The distributions of nitrite, ammonia and fluoride contaminants are sporadic in spatial, and the concentrations of fluoride in groundwaters are slightly beyond the permissible limit of 1 mg/L. The hydrochemical facies shift from HCO3Ca or Mixed HCO3-NamiddotCa type to Mixed Cl-MgmiddotCa and Cl\\Ca type with the increase of nitrate content. Two factors (Factor-1 and Factor-2) are extracted by factor analysis and account 63% of the total variances. The positive loading of F- and negative loading of NO3- on Factor-2 reveal geogenic and anthropogenic origins, respectively. The significant positive loadings of TDS, TH, SO42-, Cl-, Ca2+, Mg2+ on Factor-1 reveal the governing mechanisms on groundwater chemistry by intermixed sources of geogenic origins and anthropogenic inputs. Hydrogeochemical evolution in the study area is driven by both water-rock interaction and anthropogenic forces. Anthropogenic inputs/influences are the dominated forces increasing groundwater nitrate content and salinity in the piedmont zone and the residential and industrial zone of the southeastern lower parts, and would pose potential noncarcinogenic risks to various populations via oral intake pathway. Rational measures should be taken to protect groundwater quality out of the threats of anthropogenic pollution. The geogenic fluoride in groundwater would threat the health of children through oral pathway and should be also concerned. Capsule: The driving forces of groundwater chemistry in alluvial fan plains were revealed using integrated ap- proach of factor analysis and geostatistical modelling. (c) 2021 Published by Elsevier B.V.
英文关键词	Alluvial aquifer Hydrochemistry Groundwater quality Factor analysis Geostatistical analysis
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000701788600006
WOS关键词	NORTH CHINA PLAIN ; DRINKING-WATER ; HYDROGEOCHEMICAL PROCESSES ; AGRICULTURAL AREA ; POLLUTION CAUSES ; QUALITY ; AQUIFER ; REGION ; RIVER ; EVOLUTION
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/2XILL650/364607
作者单位	[Xiao, Yong; Zhang, Yunhui; Qin, Limao] Southwest Jiaotong Univ, Fac Geosci & Environm Engn, Chengdu 611756, Peoples R China; [Xiao, Yong; Zhang, Yunhui] Southwest Jiamong Univ, Yibin Res Inst, Yibin 644000, Peoples R China; [Hao, Qichen; Zhu, Yuchen; Li, Xiaohan] Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang 050061, Hebei, Peoples R China; [Yin, Shiyang] North China Elect Power Univ, Sch Water Resources & Hydropower Engn, Beijing 102206, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Yong,Hao, Qichen,Zhang, Yunhui,et al. Investigating sources, driving forces and potential health risks of nitrate and fluoride in groundwater of a typical alluvial fan plain[J],2022,802.
APA	Xiao, Yong.,Hao, Qichen.,Zhang, Yunhui.,Zhu, Yuchen.,Yin, Shiyang.,...&Li, Xiaohan.(2022).Investigating sources, driving forces and potential health risks of nitrate and fluoride in groundwater of a typical alluvial fan plain.SCIENCE OF THE TOTAL ENVIRONMENT,802.
MLA	Xiao, Yong,et al."Investigating sources, driving forces and potential health risks of nitrate and fluoride in groundwater of a typical alluvial fan plain".SCIENCE OF THE TOTAL ENVIRONMENT 802(2022).