About: http://webisa.webdatacommons.org/148654030

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	Lead, mercury and other heavy metals are present in our environment as
http://www.w3.org/ns/prov#wasQuotedFrom	learningtarget.com