PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Toxic air pollutants, or air toxics, are those pollutants known or suspected of causing cancer or other serious health effects.
http://www.w3.org/ns/prov#wasQuotedFrom
  • epa.gov