PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Under the law, facilities that emit 25,000 tons of carbon a year must report their emissions to the EPA. Reports include all greenhouse gases beside carbon: methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, sulfur hexafluoride and other fluorinated gases.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sustainablebusiness.com