Assertion: cristobalite | /r/HasProperty | identified as high priorities
Facets:
value: for assessment of human health risk
type: PURPOSE
Source sentences:
text: Quartz and cristobalite were identified as high priorities as they were considered to pose greatest potential for exposure of individuals in Canada and their respirable forms are classified by the International Agency for Research on Cancer as carcinogenic to humans (quartz and cristobalite) and by the National Toxicology Program as known human carcinogens (crystalline silica).
text: The substances quartz and cristobalite were identified as high priorities for assessment of human health risk because they were considered to present GPE and had been classified by other agencies on the basis of carcinogenicity.