|EPA Bans PCB Manufacture; Phases Out Uses [EPA press release - April 19, 1979]
"The Environmental Protection Agency today issued final regulations banning the manufacture of polychlorinated biphenyls (PCBs) and phasing out most PCB uses. PCBs are toxic and persistent chemicals primarily used as insulating fluids in heavy-duty electrical equipment in power plants, industries, and large buildings across the country.
The EPA rules will gradually end many industrial uses of PCBs over the next five years, but will allow their continued use in existing enclosed electrical equipment under carefully controlled conditions.
PCBs, valued for chemical stability and fire resistance, were manufactured and processed primarily for use as insulating fluids and coolants in electrical equipment and machinery from 1929-1977."
[Do not keep using old (1980 and earlier) oil filled capacitors in your Emersons, Westinghouse, Hunters, etc.
from 1929 to 1980. for your own & other family members health]