About: http://webisa.webdatacommons.org/278535024

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	Although NPS has not documented violations of federal or state ambient air quality standards, these standards have been approached, especially on days when atmospheric conditions produce little air movement.
http://www.w3.org/ns/prov#wasQuotedFrom	federalregister.gov