Edward Alley “discovered” vermiculite near Libby.
Commercial mining of vermiculite began in Libby.
Edward Merewether confirmed that inhalation of asbestos dust can cause a fatal disease.
Richard Doll found that insulation company employees had a higher risk of lung cancer.
W.R. Grace bought the mine.
W.R. Grace initiated annual employee chest x-rays.
W.R. Grace made plans to reduce asbestos dust through fans and wet mill technology.
W.R. Grace no longer hired smokers.
W.R. Grace reported possible health effects from Tremolite, now called Libby Amphibole.
Mine was officially closed.
Community-wide contamination and exposure was realized.
CARD became a non-profit organization.
The first Environmental Public Health Emergency is declared.
Affordable Care Act passed, providing free screenings at CARD.
United States Environmental Protection Agency (EPA) completed cleanup of the Superfund site and screenings will continue due to the long latency period.
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