About: http://webisa.webdatacommons.org/168435623

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	Fine particles, which are about 1/30th the average width of a human hair, come from a variety of sources, including vehicles, smokestacks and fires.
http://www.w3.org/ns/prov#wasQuotedFrom	grist.org