About: http://webisa.webdatacommons.org/319080180

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	As is well known, vehicular emissions include pollutants such as carbon monoxide, oxides of nitrogen, particulate matter, and volatile organic compounds that are known to have human health effects.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com