About: http://webisa.webdatacommons.org/11884909

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	Further complicating treatment is the common presence in soil of naturally occurring metals, such as iron or lead, in certain locations.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com