About: http://webisa.webdatacommons.org/109297159

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	In the past, PCBs were used as coolants and lubricants in electrical equipment such as transformers and capacitors.
http://www.w3.org/ns/prov#wasQuotedFrom	wa.gov