Assertion: arsenic | /r/HasProperty | designated human carcinogen
Facets:
value: in 1986
type: TEMPORAL
value: by the u.s. environmental protection agency
type: OTHER
Source sentences:
text: However it has a long list of negative health effects, especially in inorganic form, by contact or by ingestion, and was designated a human carcinogen by the U.S. Environmental Protection Agency (EPA) in 1986 (even though its actual risk remains unclear).