About: http://webisa.webdatacommons.org/273838791

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	Primary pollutants include carbon monoxide, sulphur dioxide, lead, nitrogen dioxide, benzene, and particles such as dust and smoke....
http://www.w3.org/ns/prov#wasQuotedFrom	cosafety.org