About: http://webisa.webdatacommons.org/87055452

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Air pollutants that contribute to ozone formation are emitted by vehicles, industrial facilities and natural sources such as vegetation.
http://www.w3.org/ns/prov#wasQuotedFrom	alberta.ca