鲁西平原地下水氟碘化物分布特征及健康风险评价OA

Groundwater is the main water source in the Luxi Plain.A systematic investigation of the distribution,origins,and human health risks of fluoride and iodide in groundwater systematically can provide a crucial foundation for the scientific and rational utilization of groundw-ater resources in this area.In this study,the hinterland of the Luxi Plain,Liaocheng City,was selected as the study area.The spatial distri-bution and hydrochemical characteristics of fluoride and iodide in groundwater were analyzed systematically.Moreover,the ecological risk early warning and human health risks of fluoride and iodide in the study area were evaluated.Results show that the samples with high-fluoride and high-iodide accounted for 15.00%and 73.33%,respectively.High-fluoride groundwater was scatteredly distributed in Yanggu County,Shen County,and Guan County.The areas with relatively severe iodide pollution are located along the Beijing-Hangzhou Grand Canal and in regions affected by its water flow.Mineral dissolution and evaporation are identified as the primary factors influencing fluoride and iodide con-centrations.The groundwater iodide is at a mild warning level,while fluoride and iodide in some areas of Guanxian County and along the Bei-jing-Hangzhou Grand Canal are at moderate to severe warning levels.The potential non-carcinogenic health risks to humans from fluoride and iodide in groundwater primarily stem from drinking water exposure,with the potential risks being significantly higher for children than for a-dults.