Fluoride Occurrence and Human Health Risk in Drinking Water Wells from Southern Edge of Chinese Loess Plateau.

摘要: Fluoride hydrogeochemistry and associated human health risks implications are investigated in several aquifers along the southern edge of Chinese Loess Plateau. Locally, 64% shallow groundwater samples loess aquifer exceed fluoride limit (1.5 mg/L) with maximum 3.8 mg/L. Presently, is main source private wells for domestic use, this clearly a potential risk health. Hydrogeochemistry stable isotopes used to elucidate diversity occurrence mechanisms. Enrichment largely controlled by F-containing minerals dissolution. Furthermore, alkaline condition calcium-removing processes promote water–rock interactions. Stable hydrogen oxygen (δD δ18O) study area waters demonstrate that old, which means remains long time. Long residence time induces sufficient interactions, play significant roles resolution minerals. Samples from show elevated levels, may pose both adults (60%) children (94%) via oral intake. To ensure drinking water safety, management measures such as popularizing fluoride-removing techniques optimizing supply strategies need be implemented.