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

IF 4.5 3区 环境科学与生态学 Q1 WATER RESOURCES Exposure and Health Pub Date : 2023-01-01 DOI:10.1007/s12403-022-00490-4
Yi Yang, Ru Zhang, Fengying Zhang, Yonghua Li
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引用次数: 7

Abstract

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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青藏高原地表水氟化物时空变化及健康风险评价
青藏高原(TP)被称为“亚洲水塔”,为中国和东南亚国家的居民提供重要的饮用水。然而,在这一气候敏感和生态脆弱地区,大规模的区域水质研究仍然缺乏。在世界范围内,特别是在亚洲国家,饮用氟污染的水是严重的健康问题,迫切需要澄清TP地表水中氟的时空分布特征、影响因素和健康风险。本研究对青藏高原主要河流和典型湖泊的2697份地表水样本进行了系统分析。总体而言,氟化物浓度在0.003至6.240 mg L-1之间,并因水期、流域甚至水类型而异。Pearson相关分析表明,氟浓度分布与区域气候密切相关,与人为活动正相关。概率健康风险评估显示,盆地内所有年龄组的潜在危害最高(HR > 1),特别是婴儿和成人(HR > 3),而大多数其他流域的风险是可以接受的(HR补充信息:在线版本包含补充资料,可在10.1007/s12403-022-00490-4获得)。
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来源期刊
Exposure and Health
Exposure and Health Environmental Science-Pollution
CiteScore
13.80
自引率
9.00%
发文量
71
期刊介绍: It is a multidisciplinary journal focused on global human health consequences of exposure to water pollution in natural and engineered environments. The journal provides a unique platform for scientists in this field to exchange ideas and share information on research for the solution of health effects of exposure to water pollution. Coverage encompasses Engineering sciences; Biogeochemical sciences; Health sciences; Exposure analysis and Epidemiology; Social sciences and public policy; Mathematical, numerical and statistical methods; Experimental, data collection and data analysis methods and more. Research topics include local, regional and global water pollution, exposure and health problems; health risk analysis of water pollution, methods of quantification and analysis of risk under uncertainty; aquatic biogeochemical processes in natural and engineered systems and health effects; analysis of pollution, exposure and health data; and more.
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