About: http://webisa.webdatacommons.org/171797380

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 produced in the milling process contains heavy metals, including lead and arsenic.
http://www.w3.org/ns/prov#wasQuotedFrom	dcbureau.org