Metals as heavy brain drainers
A total of thirteen metals and their compounds are known to cause toxic damage to the brain: aluminum,* arsenic, barium, bismuth, lead,* lithium, manganese,* mercury (including methylmercury and ethylmercury), nickel carbonyl, selenium, tellurium, thallium, and tin.*
Those with an asterisk* belong to the high-production volume chemicals.
Only arsenic, lead, and methylmercury are known for sure to be brain drainers, but evidence on manganese is building.
In addition, the following inorganic compounds are toxic to the brain, at least in adults: azides, carbon monoxide,* cyanides, decaborane, diborane, fluorides, hydrogen phosphide, hydrogen sulfide,* pentaborane, phosphine, and phosphorus.*