As noted in the summary of the report, a systematic review identified five different similar industrial chemicals as developmental neurotoxicants: lead, methylmercury, polychlorinated biphenyls, arsenic, and toluene.
The summary goes on to state that six additional developmental neurotoxicants have also now been identified: manganese, fluoride, chlorpyrifos, dichlorodiphenyltrichloroethane, tetrachloroethylene, and the polybrominated diphenyl ethers. The authors added that even more of these neurotoxicants remain undiscovered.
Also in the report, they note that neurodevelopmental disabilities, including attention-deficit hyperactivity disorder, dyslexia, and other cognitive impairments, are now affecting millions of children worldwide in what they call a “pandemic of developmental neurotoxicity.”
http://althealthworks.com/2262/fluoride-officially-classified-as-a-neurotoxin-by-worlds-most-prestigious-medical-journal/