About: http://webisa.webdatacommons.org/236242686

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	Cities such as London, Paris, Vienna and Copenhagen use large, city-wide monitoring networks to obtain real-time information about air quality, not only at regional background levels, but at the street-level as well.
http://www.w3.org/ns/prov#wasQuotedFrom	ecoissues.ca