About: http://webisa.webdatacommons.org/274550133

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	A repository of 44 gaseous compounds including hydrocarbons, halocarbon, and sulfur species has been established under contract with the U.S. Environmental Protection Agency (USEPA).
http://www.w3.org/ns/prov#wasQuotedFrom	epa.gov