About: http://webisa.webdatacommons.org/435474600

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	If a contaminant, such as lead, exceeds its maximum allowable concentration then the material is classified as hazardous.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com