About: http://webisa.webdatacommons.org/269917645

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	Before their manufacture was banned in 1979, PCBs were used widely in electrical equipment, including transformers.
http://www.w3.org/ns/prov#wasQuotedFrom	washington.edu