A characterization of groundwater fluoride, influencing factors and risk to human health in the southwest plain of Shandong Province, North China

Liu, Jiutan; Peng, Yuming; Li, Changsuo; Gao, Zongjun; Chen, Shaojie

doi:10.1016/j.ecoenv.2020.111512

Cited by 68 publications

(22 citation statements)

References 29 publications

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“…Although the content of F − in the water samples of the two provinces did not exceed the standard, the F − concentration in the Zhejiang was higher than in Fujian in general (Figure 11(a)), and F − concentrations gradually approached the seawater line with the increase of Cl − , indicating that the groundwater in Zhejiang Province is at risk of exceeding of F − under the influence of seawater. As is known that the alkaline environment is more conducive to fluoride enrichment in groundwater [59], groundwater F − concentration in the study area also has a positive correlation with pH (Figure 11(b)). In addition, Figures 11(c) and 11(d) show that sodium-type and bicarbonate-type groundwater is also characterized by high fluoride content.…”

Section: Fluoride Pollutionmentioning

confidence: 65%

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Hydrochemical Characteristics and Quality Assessment of Groundwater under the Impact of Seawater Intrusion and Anthropogenic Activity in the Coastal Areas of Zhejiang and Fujian Provinces, China

Chen

Wang

et al. 2022

Lithosphere

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Coastal groundwater is an important resource in the developed region associated with human health and sustainable economic development. To identify the origins of salinity and evaluate the impact of water-rock interactions, seawater intrusion (SWI), and evaporation on groundwater in the coastal areas of Zhejiang and Fujian provinces, a comprehensive investigation was performed. Meanwhile, nitrate and fluoride indicators resulting from the anthropogenic activity and SWI were also considered. At last, the water quality index (WQI) of coastal groundwater was evaluated with geochemical and multivariate statistical methods. The results indicated that (1) the groundwater in coastal areas of Zhejiang and Fujian provinces has been affected by SWI to varying degrees. The analysis of selected ion ratios (Na+/Cl− and Br−/Cl−) and isotopic compositions showed that SWI is the predominant cause of increasing salinity in the groundwater of Zhejiang Province, while the cause is water-rock interactions (ion exchange and mineral weathering) in Fujian Province. The hydrochemical evolution path of groundwater in Zhejiang Province is Ca/Mg-HCO3 to Na-Cl, while a different pattern of Ca/Mg-HCO3 to Na (Mg/Ca)-Cl occurs in Fujian Province. However, the trend of SWI development in both provinces was freshening. (2) Nitrification, sewage infiltration, and SWI increased the NO3− content in groundwater. Some of the NO3− concentration in Fujian Province exceeds the standard, and the nitrogen pollution was more serious than in Zhejiang Province. The F− content in coastal groundwater was affected by SWI and mineral dissolution; the F− content in Zhejiang Province was higher than in Fujian Province, which was close to the groundwater standard limit. The average WQI value of Zhejiang was 103.61, and the WQI of Fujian was 61.69, indicating that the coastal groundwater quality in Fujian Province was better than in Zhejiang Province. The results of the study revealed the impact of SWI and anthropogenic activity on groundwater in the southern coastal zone of China and will be valuable for sustainable groundwater resource management.

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Section: Fluoride Pollutionmentioning

confidence: 65%

“…. Previous studies suggested that agricultural and aquaculture nitrogen-containing wastewater was the main source of nitrate pollution in groundwater in Fujian Province [59,60], so it is important for the reduction of nitrate pollution in groundwater by treating sewage before the discharge.…”

mentioning

confidence: 99%

Hydrochemical Characteristics and Quality Assessment of Groundwater under the Impact of Seawater Intrusion and Anthropogenic Activity in the Coastal Areas of Zhejiang and Fujian Provinces, China

Chen

Wang

et al. 2022

Lithosphere

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“…According to the existing research on water in the TP, the chemical composition changes after a river flows into a lake, and the main positive ions changed from (Ca + + Mg + ) to (Na + + Mg + ) (Wang et al 2010 ). Water F − was found to be positively correlated with Na + and presented a significantly negative relationship with Ca 2+ (Liu et al 2021a ). A series of complex chemical processes occurred in the lake water, accumulating fluoride to some extent.…”

Section: Resultsmentioning

confidence: 99%

Spatial–Temporal Variation and Health Risk Assessment of Fluoride in Surface Water in the Tibetan Plateau

Yang

Zhang

et al. 2022

Expo Health

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The Tibetan Plateau (TP) is known as the “Asian Water Tower” and provides vital drinking water for residents of China and Southeast Asian countries. However, large-scale regional research on water quality in this climate-sensitive and ecologically-fragile area is still lacking. Considering that drinking from fluoride-contaminated water poses serious health concerns worldwide, especially in Asian counties, it is urgent to clarify the spatial–temporal distribution characteristics, influencing factors, and health risk of fluoride in surface water in the TP. In this study, a total of 2697 surface water samples from major rivers and typical lakes in the TP were systematically analysed. Overall, fluoride concentrations ranged from 0.003 to 6.240 mg L −1 and varied among water periods, water basins and even water types. Pearson’s correlation analysis showed that the distribution of fluoride concentration was closely related to the regional climate and positively correlated with anthropogenic activities. Probabilistic health risk assessment revealed that potential hazards in the Inner Basin were the highest for all age groups (HR > 1), especially for infants and adults (HR > 3), while the risks in most other water basins were acceptable (HR < 1). Our findings can provide scientific support for fluorosis prevention, and guide water resource utilization in the TP and adjacent regions. Supplementary Information The online version contains supplementary material available at 10.1007/s12403-022-00490-4.

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“…These analytical methods are mature with high sensitivity, but they have their own shortcomings 9 . For example, determination of the fluoride ion by the selective‐ion electrode method is easily disturbed by the coexisting ions in the solution, 10 and the potential drift of the electrode will also interfere with its determination 11 . As for ion chromatography, the retention of the fluoride ion is very weak on the anion‐exchange column, and its detection is easily interfered with by organic acids 12 .…”

Section: Introductionmentioning

confidence: 99%

Determination of trace fluoride in water samples by silylation and gas chromatography/mass spectrometry analysis

Chen

Wang

et al. 2021

Rapid Comm Mass Spectrometry

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Rationale Due to the ubiquity of fluorides and the small gap between a safe dose and a harmful one, it is necessary to develop a robust analytical method for determination of fluoride ions in various water samples with complex matrices. Methods Silylation of the fluoride ion was carried out by treatment with hydrochloric acid and phenyldimethylchlorosilane at room temperature. The formed phenyldimethylfluorosilane was detected by gas chromatography/mass spectrometry (GC/MS). Results Under the optimized conditions, linearity in the analytical method ranged from 0.050 to 5.0 μg/mL for the fluoride ion with R2 >0.9999. Reasonable reproducibility was obtained with the intraday relative standard deviation (RSD) (N = 5) of 2.04% and interday RSD (N = 5) of 3.75% at the concentration of 0.10 μg/mL. The developed method has been successfully applied to determine the fluoride ion in real water samples, including waste water samples, with the recovery between 81.12% and 113.04%. Conclusions A robust method for the determination of the fluoride ion has been developed by silylation with phenyldimethylchlorosilane and GC/MS analysis. The established method showed good anti‐interference and precision, and it has been applied for determination of the fluoride ion in various water samples.

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A characterization of groundwater fluoride, influencing factors and risk to human health in the southwest plain of Shandong Province, North China

Cited by 68 publications

References 29 publications

Hydrochemical Characteristics and Quality Assessment of Groundwater under the Impact of Seawater Intrusion and Anthropogenic Activity in the Coastal Areas of Zhejiang and Fujian Provinces, China

Hydrochemical Characteristics and Quality Assessment of Groundwater under the Impact of Seawater Intrusion and Anthropogenic Activity in the Coastal Areas of Zhejiang and Fujian Provinces, China

Spatial–Temporal Variation and Health Risk Assessment of Fluoride in Surface Water in the Tibetan Plateau

Determination of trace fluoride in water samples by silylation and gas chromatography/mass spectrometry analysis

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