About: http://webisa.webdatacommons.org/220899161

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	(NO2), alkanes including in particular methane (CH4), halogens including in particular fluorine, bacteria suspended in the ambient air and others.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com