About: http://webisa.webdatacommons.org/276584225

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	While trace amounts of mercury have always been present in the environment, concentrations of this chemical have been increasing to dangerous levels due to human activities such as coal burning.
http://www.w3.org/ns/prov#wasQuotedFrom	newmoa.org