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Dear P2Tech,

There are a number of references to the fact that automobile shredder residue (ASR) may be classified as polychlorinated biphenyl (PCB) bulk product waste due to the presence of PCB laden plastics in the ASR.  Can anyone on the list identify these PCB laden plastics and/or explain why they contain PCBs?  

Is plastic insulation from electric cables manufactured prior to the manufacturing ban on PCBs to blame?  Are PCBs inadvertently generated as minor impurities during the production of certain plastics?


David Herb
Technical Assistance Engineer
Pollution Prevention Section
MDEQ - Environmental Assistance Division
2nd Floor Town Center, 333 S. Capitol
P.O. Box 30457
Lansing, MI 48909-7957

Phone: 517-241-8176
Fax: 517-373-3675
Email: herbdw@state.mi.us

Environmental Assistance Center 1-800-662-9278
Visit the MDEQ-EAD Website at: http://www.deq.state.mi.us/ead/