About: http://webisa.webdatacommons.org/337569736

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	Mercury vapor is introduced into various gases such as air, hydrogen and carbon dioxide in various ways.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es