About: http://webisa.webdatacommons.org/406447835

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	Therefore, the global total for recycled mercury, including all of the elements described above, is estimated at 500-600 metric tonnes.
http://www.w3.org/ns/prov#wasQuotedFrom	issuu.com