About: http://webisa.webdatacommons.org/105509838

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	Commonly referred to as "smog, ozone is a gas formed when sunlight reacts with oxides of nitrogen and volatile organic compounds emitted by cars, buses, trucks, construction equipment, gas stations, refineries, and many other sources.
http://www.w3.org/ns/prov#wasQuotedFrom	sparetheair.org