About: http://webisa.webdatacommons.org/320691771

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	PAH, a common urban pollutant, are released into the air from the burning of coal, diesel, oil and gas, or other organic substances such as tobacco.
http://www.w3.org/ns/prov#wasQuotedFrom	medicaldaily.com