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Re: PCBs in ASR





My understanding is that the source of the PCBs is capacitors in the electrical
system, not plastics.  The plastics (and everything else) become contaminated
when the non-metallic parts of the auto are shredded.  EPA Region 8 has a fact
sheet on the preventitive aspects of this mess at
http://es.epa.gov/techinfo/facts/epa/epa-fs.html.

Bill Wilson
EPA Region 9





HERBDW@state.mi.us on 12/16/99 07:00:51 AM

Please respond to HERBDW@state.mi.us

To:   p2tech@great-lakes.net
cc:
Subject:  PCBs in ASR




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?

Thanks,




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/