Occurrence and Health Implication of Fluoride in Groundwater of Loess Aquifer in the Chinese Loess Plateau: A Case Study of Tongchuan, Northwest China
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This study was carried out to delineate the occurrence and spatial distribution of groundwater fluoride in a loess area of China and to determine the geochemical and anthropogenic factors that influence its concentration. Water quality was assessed for drinking purpose by comparing with the national and WHO drinking water guidelines, and the impacts of fluoride on human health were also quantified using the health risk assessment model recommended by the USEPA. The results demonstrate that groundwater in the study area is slightly alkaline in nature, and its quality is generally good except slightly excessive TDS, TH, Na+, F−, and nitrate at some local locations. High-fluoride groundwater is mainly distributed in the southeast part of the study area, which is in accordance with the groundwater flow direction in this area. Groundwater fluoride is mainly of natural origin and is dominantly controlled by natural factors such as pH, specific hydrochemical environment, ion exchange, and saturation state of minerals. Fluoride contributes the most to the total health risk in the present study. Children are at higher health risk than adults in this area. Establishing central water supply system and rainwater harvesting system are suggested to guarantee safe drinking water supply in this area.
KeywordsFluoride occurrence Health risk assessment Water quality assessment Groundwater environment Loess Plateau
The following funding sources supported this research: the National Natural Science Foundation of China (41502234, 41761144059 and 41602238), the Special Fund for Basic Scientific Research of Central Universities (310829153509 and 300102298301), the Research Funds for Young Stars in Science and Technology of Shaanxi Province (2016KJXX-29), the Fok Ying Tong Education Foundation (161098), the General Financial Grant from the China Postdoctoral Science Foundation (2015M580804), the Special Financial Grant from the China Postdoctoral Science Foundation (2016T090878), the Special Financial Grant from the Shaanxi Postdoctoral Science Foundation (2015BSHTDZZ09), and the Innovation Training Program for Undergraduate Students of Chang’an University (201610710073, 201710710099 and 201710710100). The editor and reviewers are sincerely acknowledged for their instructive and detailed comments on the early versions of the manuscript. We are also in debt to the master students Xinsheng Lyu and Hui Tang who have helped us a lot in field investigation and sample collection. Without their voluntary help, the publication of our research will be greatly delayed.
Compliance with Ethical Standards
Conflict of interest
The authors declare that they have no competing interest.
- Chidambaram S, Sarathidasan J, Srinivasamoorthy K, Thivya C, Thilagavathi R, Prasanna MV, Singaraja C, Nepolian M (2018) Assessment of hydrogeochemical status of groundwater in a coastal region of Southeast coast of India. Appl Water Sci 8:27. https://doi.org/10.1007/s13201-018-0649-2 CrossRefGoogle Scholar
- General Administration of Quality Supervision, Inspection & Quarantine of China, Standardization Administration of China (2017) Standards for groundwater quality (GB/T 14848-2017). Standards Press of China, Beijing (in Chinese)Google Scholar
- Li P-Y, Qian H, Wu J-H, Ding J (2010) Geochemical modeling of groundwater in southern plain area of Pengyang County, Ningxia, China. Water Sci Eng 3(3):282–291. https://doi.org/10.3882/j.issn.1674-2370.2010.03.004 Google Scholar
- Li P, Wu J, Qian H, Zhang Y, Yang N, Jing L, Yu P (2016a) Hydrogeochemical characterization of groundwater in and around a wastewater irrigated forest in the southeastern edge of the Tengger Desert, Northwest China. Expo Health 8(3):331–348. https://doi.org/10.1007/s12403-016-0193-y CrossRefGoogle Scholar
- Li P, Tian R, Liu R (2018b) Solute Geochemistry and Multivariate Analysis of Water Quality in the Guohua Phosphorite Mine, Guizhou Province, China. Expo Health. https://doi.org/10.1007/s12403-018-0277-y
- Li P, Wu J, Tian R, He S, He X, Xue C, Zhang K (2018c) Geochemistry, Hydraulic Connectivity and Quality Appraisal of Multilayered Groundwater in the Hongdunzi Coal Mine, Northwest China. Mine Water Environ. https://doi.org/10.1007/s10230-017-0507-8
- Ministry of Environmental Protection of China (2009) Water quality sampling—technical regulation of the preservation and handling of samples (HJ 493–2009). China Environmental Science Press, Beijing (in Chinese) Google Scholar
- Ministry of Environmental Protection of China (2014) Technical guidelines for risk assessment of contaminated sites (HJ 25.3–2014). China Environmental Science Press, Beijing (in Chinese)Google Scholar
- Narsimha A, Rajitha S (2018) Spatial distribution and seasonal variation in fluoride enrichment in groundwater and its associated human health risk assessment in Telangana State, South India. Hum Ecol Risk Assess. https://doi.org/10.1080/10807039.2018.1438176
- Subba Rao N, Deepali M, Dinakar A, Chandana I, Sunitha B, Ravindra B, Balaji T (2017) Geochemical characteristics and controlling factors of chemical composition of groundwater in a part of Guntur district, Andhra Pradesh, India. Environ Earth Sci 76:747. https://doi.org/10.1007/s12665-017-7093-8 CrossRefGoogle Scholar
- Ugran V, Desai NN, Chakraborti D, Masali KA, Mantur P, Kulkarni S, Deshmukh N, Chadchan KS, Das SN, Tanksali AS, Arwikar AS, Guggarigoudar SP, Vallabha T, Patil SS, Das KK (2017) Groundwater fluoride contamination and its possible health implications in Indi taluk of Vijayapura District (Karnataka State), India. Environ Geochem Health 39:1017–1029. https://doi.org/10.1007/s10653-016-9869-2 CrossRefGoogle Scholar
- USEPA (1989) Risk assessment guidance for superfund, volume I: Human health evaluation manual (Part A). Office of Emergency and Remedial Response, Washington DCGoogle Scholar
- USEPA (2017) Regional Screening Levels (RSLs)—Generic Tables. https://www.epa.gov/risk/regional-screening-levels-rsls-generic-tables-november-2017, Accessed 26 February 2018
- WHO (2017) Guidelines for drinking water quality: fourth edition incorporating the first addendum. World Health Organization, GenevaGoogle Scholar