About: http://webisa.webdatacommons.org/327091660

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 EPA and the upper Midwest states are currently evaluating whether factors such as acid rain may contribute to this problem.
http://www.w3.org/ns/prov#wasQuotedFrom	nap.edu