PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • EPA studies show that the source of radiation at fracking sites comes as a waste produced during the process of oil and gas drilling that can penetrate water, drilling mud, sludge, slimes or scale that can form in pipes, storage tanks or other extraction equipment.
http://www.w3.org/ns/prov#wasQuotedFrom
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