About: http://webisa.webdatacommons.org/435826621

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	There are several significant sources of VOC emissions, including natural or biogenic sources such as trees and vegetation, and man-made sources such as vehicle emissions, petroleum refining and distribution, and combustion sources.
http://www.w3.org/ns/prov#wasQuotedFrom	americanchemistry.com