Assertion: air pollution | /r/HasProperty | danger
Facets:
value: to human health
type: TRANSITIVE-OBJECT
value: to welfare
type: TRANSITIVE-OBJECT
value: primarily
type: DEGREE
Source sentences:
text: Air pollution has been a danger to human health and Earth's many ecosystems for a long time.
text: Air Pollution is Dangerous
text: When the National Ambient Air Quality Standards were established in 1970, air pollution was regarded primarily as a threat to respiratory health.
text: The act declared that air pollution was a danger to public health and welfare, but preserved the "primary responsibilities and rights of the states and local government in controlling air pollution".