About: http://webisa.webdatacommons.org/419037468

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	It also contained a cocktail of potentially toxic metals such as arsenic, chromium, and vanadium.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org