PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Air toxics, also called hazardous air pollutants, are pollutants that are known or suspected to cause cancer or other serious health effects or adverse environmental impacts.
http://www.w3.org/ns/prov#wasQuotedFrom
  • epa.gov