About: http://webisa.webdatacommons.org/445732055

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 vapour is widespread in the atmosphere especially at the poles, and concentrations are believed to have more than tripled in the past two centuries.
http://www.w3.org/ns/prov#wasQuotedFrom	newscientist.com