About: http://webisa.webdatacommons.org/326899401

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	The most dangerous emissions have virtually disappeared and water quality, especially in the Great Lakes, has greatly improved.
http://www.w3.org/ns/prov#wasQuotedFrom	evolutionwriters.com