About: http://webisa.webdatacommons.org/226661402

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 pollution is caused by harmful gases such as carbon dioxide, sulphur dioxide, nitrogen dioxide carbon monoxide and very small particles of carbon.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org