About: http://webisa.webdatacommons.org/322857157

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 gases present are mostly oxygen and carbon dioxide, and do not pose a threat to public health.
http://www.w3.org/ns/prov#wasQuotedFrom	cpwa.org