About: http://webisa.webdatacommons.org/119690023

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	For some emissions, like lead and other toxic metals, this threshold is sufficient.
http://www.w3.org/ns/prov#wasQuotedFrom	pbs.org