About: http://webisa.webdatacommons.org/165800325

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	gallons of drilling muds routinely discharge toxic metals, such as lead, mercury and cadmium.
http://www.w3.org/ns/prov#wasQuotedFrom	doi.gov