title: Community health effects of a municipal water supply hyperfluoridation accident.
abstract: For 12 hours, excess hydrofluorosilicic acid was diverted to a 127-home community water supply. Fluoride levels peaked at 51 parts per million (ppm). Water acidification caused copper to leach from the domestic plumbing; raising copper levels to 25-41 ppm. Fifty-two (33 per cent) of those who drank hyperfluoridated water developed mild gastroenteritis. Vomiting was uncommon and symptom onsets usually occurred greater than 30 minutes after drinking water; suggesting that fluoride, rather than copper, caused illness. Skin contact with hyperfluoridated water caused itching and skin rashes.
authors: Centers for Disease Control.
authors: L R
authors: LR
authors: Petersen
authors: D
authors: D
authors: Denis
authors: D
authors: D
authors: Brown
authors: J L
authors: JL
authors: Hadler
authors: S D
authors: SD
authors: Helgerson
mesh_terms: D000062:Accidents, Occupational; D003237:Connecticut; D005457:Fluoridation; D005459:Fluorides / Q000008:administration & dosage* / Q000009:adverse effects*; D005759:Gastroenteritis / Q000139:chemically induced; D006801:Humans; D012824:Silicic Acid; D012825:Silicon / Q000008:administration & dosage*; D012871:Skin Diseases / Q000139:chemically induced; D014877:Water Pollution, Chemical / Q000009:adverse effects*; D014881:Water Supply
chemical_list: D012824:Silicic Acid; C035291:hexafluorosilicic acid; D005459:Fluorides; D012825:Silicon