About: http://webisa.webdatacommons.org/158042793

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	One set of compounds not yet discussed are the heavy metals, such as lead, cadmium, and mercury.
http://www.w3.org/ns/prov#wasQuotedFrom	lalecheleague.org