About: http://webisa.webdatacommons.org/360479637

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	According to the U.S. Environmental Protection Agency (EPA), however, the air quality in Texas as a whole and Houston in particular has dramatically improved over the past 30 years, as noted in a 2005 report by the agency.
http://www.w3.org/ns/prov#wasQuotedFrom	heartland.org