干旱区生态环境知识资源中心(Arid): Response of groundwater chemical characteristics to land use types and health risk assessment of nitrate in semi-arid areas: A case study of Shuangliao City, Northeast China

Arid

DOI	10.1016/j.ecoenv.2022.113473
	Response of groundwater chemical characteristics to land use types and health risk assessment of nitrate in semi-arid areas: A case study of Shuangliao City, Northeast China
	Liu, Mingjun; Xiao, Changlai; Liang, Xiujuan; Wei, Hongyang
通讯作者	Liang, XJ
来源期刊	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
ISSN	0147-6513
EISSN	1090-2414
出版年	2022
卷号	236
英文摘要	Groundwater is an important source of water, especially in semi-arid areas. The assessment of the chemical characteristics of groundwater under different land use types the associated risk to human health is of important significance for water resources utilization and protecting the ecological environment. The present study analyzed the hydrochemical characteristics and ion sources of groundwater, taking Shuangliao City as an example. The analysis was based on the field investigation (82 water samples), descriptive statistics, correlation analysis, ion proportionality coefficient method, and principal component analysis (PCA). The results indicated that the concentrations of most ions in the aquifer had wide spatiotemporal variation and were susceptible to environmental influences. NO3- showed the highest spatial variability, with concentrations ranging from 0.0 to 529.48 mg.L-1. The processes contributing the most to the chemical composition of groundwater were leaching/ dissolution and cation exchange. The spatial distribution of groundwater chemistry types was visually obtained through the combined use of Piper trilinear charts and a Digital Terrain Model (DTM). The HCO3-Ca type dominated. Groundwater Cl-, SO42-, and Ca2+ were negatively correlated with the Normalized Difference Vegetation Index (NDVI) due to the absorption of inorganic salt by vegetation roots, indicating that land use types affect groundwater hydrochemistry in the area. The hazard quotient (HQ) used in the human health risk assessment (HHRA) model indicated children (0.0010-6.4162) to be at the highest risk, followed by adult females (0.0007-4.0396), with adult males (0.0005-3.0863) under the lowest risk. The spatial distribution of groundwater nitrate was shown to pose risks to children, adult females, and adult males across 62.97%, 50.01%, and 39.34% of the study area, respectively. This study can improve the understanding of groundwater evolution and the relationship between water chemistry and land use types. This study can also guide the development and utilization of groundwater resources and conservation of water quality in semi-arid areas.
英文关键词	Hydrochemistry NDVI Land use NO3- Health risk assessment
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:000912260800001
WOS关键词	DRINKING-WATER ; HYDROCHEMICAL CHARACTERIZATION ; NORTHWEST ; POLLUTION ; FLUORIDE ; AQUIFER ; REGION ; BASIN ; EVOLUTION ; PLAINS
WOS类目	Environmental Sciences ; Toxicology
WOS研究方向	Environmental Sciences & Ecology ; Toxicology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392388
推荐引用方式 GB/T 7714	Liu, Mingjun,Xiao, Changlai,Liang, Xiujuan,et al. Response of groundwater chemical characteristics to land use types and health risk assessment of nitrate in semi-arid areas: A case study of Shuangliao City, Northeast China[J],2022,236.
APA	Liu, Mingjun,Xiao, Changlai,Liang, Xiujuan,&Wei, Hongyang.(2022).Response of groundwater chemical characteristics to land use types and health risk assessment of nitrate in semi-arid areas: A case study of Shuangliao City, Northeast China.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,236.
MLA	Liu, Mingjun,et al."Response of groundwater chemical characteristics to land use types and health risk assessment of nitrate in semi-arid areas: A case study of Shuangliao City, Northeast China".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 236(2022).