PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In a sense, concentrations are a measure of the amount of emitted particles that exist in a certain location.Since there are many sources of PM2.5, measured PM2.5 concentrations will include particles emitted not only from open burning but also from a variety of other sources as well.
http://www.w3.org/ns/prov#wasQuotedFrom
  • treehugger.com