About: http://webisa.webdatacommons.org/396440253

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 largest single-year reduction in SO2 since the start of the Acid Rain Program occurred between 2008 and 2009. ??? Reductions in fine particle levels yielded benefits including about 20,000-50,000 lives saved annually.
http://www.w3.org/ns/prov#wasQuotedFrom	epa.gov