About: http://webisa.webdatacommons.org/176229763

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	For still other air pollutants, including volatile organic compounds and carbon dioxide, the current guidelines do not provide any standards at all. ??? The rest of this article is only available to active members of Questia
http://www.w3.org/ns/prov#wasQuotedFrom	questia.com