干旱区生态环境知识资源中心(Arid): Occurrence, health risks, and geochemical mechanisms of fluoride and nitrate in groundwater of the rock-dominant semi-arid region, Telangana State, India

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DOI	10.1080/10807039.2018.1480353
	Occurrence, health risks, and geochemical mechanisms of fluoride and nitrate in groundwater of the rock-dominant semi-arid region, Telangana State, India
	Adimalla, Narsimha 1,2; Li, Peiyue 1,2
通讯作者	Li, Peiyue
来源期刊	HUMAN AND ECOLOGICAL RISK ASSESSMENT
ISSN	1080-7039
EISSN	1549-7860
出版年	2019
卷号	25 期号:1-2 页码:81-103
英文摘要	Highly contaminated groundwater can affect the human health and constrain the economic development of a country. For this study 105 groundwater samples were collected in rock-dominant semi-arid (RDSA) region, India and analyzed for hydrochemical parameters including major ions, fluoride, and nitrate. The human health risks due to groundwater fluoride and nitrate contamination were also assessed. The analysis reveals that most of the groundwater samples are alkaline in nature. Hydrochemical types of groundwater in the study area are mainly Ca.Mg-HCO3 and Na-HCO3 types and a few samples belong to Ca.Mg-Cl and Na-Cl types in the RDSA region. Fluoride concentration ranges from 0.5 to 3.5 mg/L, and predominantly eastern part of the study region has higher concentrations of fluoride with comparison to the western part. About 49% of the groundwater samples have fluoride concentration above 1.5 mg/L in groundwater, indicating a high health risk to residents. Eventually, water-rock interactions are the main processes to elevate the fluoride concentration in eastern part of the study area. Nitrate concentration ranges from 12 to 212 mg/L, and northern and southern parts of the study region have much higher nitrate concentrations than the central region of the study area, where nitrate concentration is below 45 mg/L. In terms of nitrate, 55% and 17% of the groundwater samples are under high risk and very high risk categories, respectively, which are not suitable for drinking purposes in the study region. Fertilizer application for crop yields could be one of the reasons for elevated nitrate concentration. The total hazard index for adults ranges from 0.87 to 7.08, and for children 1.17 to 9.57, which suggests that children are at higher health risk than adults in the study region. Therefore, contaminants filters and rainwater harvesting are suggested as measures to reduce the health risk in the area.
英文关键词	fluoride nitrate contamination groundwater quality health risk assessment India
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000473500400005
WOS关键词	IRRIGATION PURPOSES ; SHALLOW GROUNDWATER ; SOIL SALINIZATION ; DRINKING-WATER ; YINCHUAN PLAIN ; ANDHRA-PRADESH ; SURFACE-WATER ; QUALITY ; POLLUTION ; CONTAMINATION
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216149
作者单位	1.Changan Univ, Sch Environm Sci & Engn, 126 Yanta Rd, Xian 710054, Shaanxi, Peoples R China; 2.Changan Univ, Minist Educ, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Xian, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Adimalla, Narsimha,Li, Peiyue. Occurrence, health risks, and geochemical mechanisms of fluoride and nitrate in groundwater of the rock-dominant semi-arid region, Telangana State, India[J],2019,25(1-2):81-103.
APA	Adimalla, Narsimha,&Li, Peiyue.(2019).Occurrence, health risks, and geochemical mechanisms of fluoride and nitrate in groundwater of the rock-dominant semi-arid region, Telangana State, India.HUMAN AND ECOLOGICAL RISK ASSESSMENT,25(1-2),81-103.
MLA	Adimalla, Narsimha,et al."Occurrence, health risks, and geochemical mechanisms of fluoride and nitrate in groundwater of the rock-dominant semi-arid region, Telangana State, India".HUMAN AND ECOLOGICAL RISK ASSESSMENT 25.1-2(2019):81-103.