Assertion: smog's pollutant | /r/HasProperty | particulate matter
Facets:
Source sentences:
text: Pollutants that contribute to poor air quality include particulate matter (PM), nitrogen oxides (NO x ), and volatile organic compounds (VOCs).
text: These dangerous pollutants are known as the criteria pollutants, and include ozone, particulate matter, sulfur dioxide, nitrogen dioxide, carbon monoxide, and lead.