GLGY 308 Lecture Notes - Lecture 16: Sodium Fluorosilicate, Sodium Fluoride, Calcium Fluoride
28 Dec 2019
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Minerals containing f- are called fluoride minerals. Water fluoridation usually is accomplished by adding sodium fluoride (naf), fluorosilicic acid (h2sif6), or sodium fluorosilicate (na2sif6) to drinking water. Video: why the government puts fluoride in our water. Natural f- gets washed into our drinking water supply by: Fluoride is not in all rocks because rocks are composed of different minerals in different amounts. In the 1940"s, scientists found that people living near water sources with 1 ppm f- had fewer: Some water naturally has high or moderate levels of fluoride as a result of the types of rocks the water flows over. Today, _____ of americans have fluorinated public drinking water. A study of medieval skeletons showed that people who lived in coastal areas and ate more. A cdc study compared kids in the late 1960"s to kids in the early 1990"s, and found a 68% drop in: This drop could be attributed to either:
