About: http://webisa.webdatacommons.org/227422863

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	Over the lifetime of the Clean Air Act, for instance, for every $1 it costs to add pollution controls, Americans have received about $30 in health and other benefits.
http://www.w3.org/ns/prov#wasQuotedFrom	littlegreenfootballs.com