Don't have Telegram yet? Try it now!
https://clinicalnews.org/2014/04/11/us-school-children-exposed-to-arsenic-in-well-water-have-lower-iq-scores-purchasing-a-standard-filter-at-the-hardware-store-is-inadequate/
US school children exposed to arsenic in well water have lower IQ scores / purchasing a standard filter at the hardware store is inadequate