About: http://webisa.webdatacommons.org/408355675

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	d which has for its object the removing of nitrogen oxides, particularly nitric oxide or nitrogen dioxide, almost completely or completely from gases such as industrial gases or air containing said nitrogen oxides.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com