Date: Thu, 3 Dec 2009 22:53:55 +0000
Reply-To: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: roger.o.mcclellan**At_Symbol_Here**ATT.NET
Subject: Re: Paraformaldehyde - carcinogen or not?
Comments: cc: ACTSNYC**At_Symbol_Here**CS.COM
In-Reply-To: <cd5.6063abdb.3849848b**At_Symbol_Here**>
To all:
   Just to refresh the memory of some folks, recall formalde hyde is present in the 1 carbon metabolic cycle so our bodies con tain lots of formaldehyde. I understand that  formaldehyde has be en measured in exhaled breath at 1-2 ppb. The dose does make the poison!!
          Roger McClellan
Advisor, Toxicology and Human H ealth Risk Analysis
13701 Quaking Aspen Place NE
Albuquerque, NM 87 111
Tel: 505-296-7083
Fax: 505-296-9573
E-mail: roger.o.mcclell an**At_Symbol_Here**
-------------- Original message from ACTSNYC**At_Symbol_Here**CS.COM: ------- -------

Of course it is a carcinoge n.  The EU is shortening their testing list by figuring out that if a chemical breaks down to release or is metabolized to release a carcinogen, the chemical itself is a carcinogen.  That is how their very elegant D ye Directive effectively bans hundreds of untested dyes from use on materia ls that will be next to the skin.  The Directive has a list of 22 carc inogens, and all you have to do is look at your dye, see where the azo bond s are likely to break and what's left over, and you will know even without testing whether or not you can use the stuff.

The EU, which actually registers all chemicals proposed for use in products in commerce is up to 140,000 and counting.  But only about 900 chemicals have had any sor t of cancer testing.  There isn't enough time or rats in the universe to test 140,000 chemicals, so there has to be some short cutting.  And this is one of the ways.

If a chemical breaks down to release a car cinogen, it's a carcinogen. 

Monona Rossol

In a message dated 12/3/2009 12:40:46 PM Eastern Standard Time, dmdecker**At_Symbol_Here**UCDAVIS.EDU wr ites:

This comes up every so often, with strong feelings on both sides, because paraformaldehyde evolves formaldehyde gas (slowly) in solution, under some circumstances.


What say you?


Debbie Decker

EH&am p;S UCDavis


FAX (530)752-4527


Co-Conspirator to Make the World A

Better Place - - Visit and join the conspiracy


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