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As of May 2000, 42 of the 50 largest U.S. cities had water fluoridation. [29] According to a 2002 study, [30] 67% of U.S. residents were living in communities with fluoridated water at that time. The U.S. Centers for Disease Control has identified community water fluoridation as one of ten great public health achievements of the 20th century. [31]
The effect of water fluoridation on the natural environment has been investigated, and no adverse effects have been established. Issues studied have included fluoride concentrations in groundwater and downstream rivers; lawns, gardens, and plants; consumption of plants grown in fluoridated water; air emissions; and equipment noise. [54]
The effect of water fluoridation on the natural environment has been investigated, and no adverse effects have been established. Issues studied have included fluoride concentrations in groundwater and downstream rivers; lawns, gardens, and plants; consumption of plants grown in fluoridated water; air emissions; and equipment noise. [81]
Studies have validated fluoride’s benefits at low levels, but newer research shows risks.
Kentucky is the only state to require fluoridation in every community water system that serves 1,500 or more people, and as a result, 99.99 percent of residents receive fluoridated water.
Major public health groups, including the American Dental Association, the American Academy of Pediatrics and the Centers for Disease Control and Prevention, support the use of fluoridated water ...
Fluoride pollution from various industrial emissions can also contaminate water supplies. In a few areas of the United States, fluoride concentrations in water are much higher than normal, mostly from natural sources. In 1986, EPA established a maximum allowable concentration for fluoride in drinking water of 4 milligrams per liter (mg/L).
In 2017, a judge, considering a legal challenge claiming fluoride causes neurological impacts, concluded there was “unreasonable risk” related to its presence in water, but that this finding ...