About: http://webisa.webdatacommons.org/173909805

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	The sludge contained such toxic substances as arsenic, chromium, cadmium and thallium.
http://www.w3.org/ns/prov#wasQuotedFrom	timesfreepress.com