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RE:"popcorn" ceiling



Minor point that might allay some concerns.
 
While I have no doubt that these folks had asbestos ceiling texture, the "popcorn" type is typically styrofoam beads (like a shredded picnic cooler) in a drywall 'mud' base.  Although, come to think of it, drywall mud used to have some asbestos in it for strength, but this would be considered non-friable unless disturbed.
 
The sprayed asbestos that was used on ceilings had an irregular fibrous surface, but no pellets.
 
To answer your question: Sprayed asbestos > aluminum wiring > popcorn texture w/ asbestos containing 'mud' > radon, in my opinion.
 
Dave Neil  neildm@id.doe.gov
-----Original Message-----
From: RuthWeiner@AOL.COM [mailto:RuthWeiner@AOL.COM]
Sent: Wednesday, January 23, 2002 8:06 AM
To: michaelford@cox-internet.com; healthrad@HOTMAIL.COM; radsafe@list.vanderbilt.edu
Subject: Re: Lung cancer mortality from radon versus mortality from other <plus> Radon...

I would like to inject a real-life "risk-based" decision into this decision.  This is a true story:

Friends of ours -- a family that includes small children -- just purchased a house.  The house has aluminum wiring, painted asbestos "popcorn" ceilings, and no particular radon mitigation.  They just spent quite a bit on asbestos removal, and can't immediately afford both replacement of the wiring and radon barriers.  They asked me (and this is a bit of oversimplification) which I thought they should do.  My answer was unhesitating, and I told them not only is the aluminum wiring a very real fire hazard, while the radon hazard is putative at best, but had they had a fire, they might have wished to have left the asbestos in place and just added some coats of paint.

Now I would like to ask the folks who base their contentions on the Iowa study: if you  only could afford to mitigate one risk, which would you mitigate: radon, asbestos in the ceiling, aluminum wiring in the walls?  This is a real question and I look forward to the answers.

Ruth

Ruth Weiner, Ph. D.
ruthweiner@aol.com