About: http://webisa.webdatacommons.org/448011752

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	Indicate in the cells of the matrix whether data are available or unavailable.
http://www.w3.org/ns/prov#wasQuotedFrom	epa.gov