About: http://webisa.webdatacommons.org/84849832

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	In all, environmentalists say, oil and gas operations emit more than 200 hazardous compounds, including nitrogen oxide, a triple threat because it forms haze, ozone and acidic precipitation.
http://www.w3.org/ns/prov#wasQuotedFrom	hcn.org