About: http://webisa.webdatacommons.org/86849308

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 is emitted into the air by manufacturing or burning coal for fuel, and from natural sources, such as volcanos.
http://www.w3.org/ns/prov#wasQuotedFrom	smarterhomes.org.nz