Letter to the Editor on Parker et al. 2022 “Development of Fluoride Protective Values for Aquatic Life Using Empirical Bioavailability Models”

摘要

Despite human activities have currently increased the globalflux of fluoride into the atmosphere and in rivers by more than afactor of 2 (Schlesinger et al., 2020), national water qualitycriteria for fluoride to protect freshwater biota have been establishedin only a few countries. The Canadian Council ofMinisters of the Environment developed an interim waterquality guideline of 0.12 mg F?/L (Environment Canada, 2001)by multiplying the 144 h median lethal concentration (LC50)value of 11.5 mg F?/L for the caddisfly Hydropsyche bronta(Camargo et al., 1992) by a safety factor of 0.01. This Canadianwater quality guideline for fluoride appears to be adequate toprotect sensitive native freshwater animals from anthropogenicfluoride pollution.