Eleven EPA employee unions have called for a moratorium on drinking water fluoridation programs. They have further asked EPA management to recognize fluoride as posing a serious cancer risk.
The unions acted in response to an apparent cover-up of evidence from the Harvard School of Dental Medicine connecting fluoridation with a seven-fold increased risk of the fatal bone cancer osteosarcoma. The unions also cited other results similar to those in the Harvard study, and recent work that links the use of silicofluoride fluoridating agents with increased lead levels in water.
Fluoridation of public water supplies began after World War II in order to fight tooth decay. Decades later, health concerns arose as cities began reporting increased bone deformities.
About 145 million American citizens regularly drink fluoridated water.