Fluoride Fact Friday: MCLs, Australia research, volcanoes

We’ll keep it simple for our first fact for Fluoride Fact Friday: One important source of fluoride in earth’s fluoride cycle is volcanoes! Another fact for the day … Fluoride is the only substance that has both an MCL and SMCL in EPA’s drinking water treatment standards and guidelines. What’s MCL and SMCL, you ask? … Read more