About: http://webisa.webdatacommons.org/377448940

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	Polycyclic Aromatic Hydrocarbons (PAH's) are a group of different chemicals that are formed during incomplete burning of coal, oil , gas, garbage or other organic substances.
http://www.w3.org/ns/prov#wasQuotedFrom	hamnair.ca