About: http://webisa.webdatacommons.org/351592285

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	Heavy Metals: Heavy metals come from some natural sources such as minerals in rocks, vegetation, sand, and salt.
http://www.w3.org/ns/prov#wasQuotedFrom	epa.gov