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Re: today's question, quick!



Hi Kathy,

These may not be worse but they are definitely examples of switching
from bad to bad.

1. Methylene-chloride-free paint stripper to
n-methyl-2-pyrrolidone-containing paint stripper
(N-methyl-2-pyrrolidone is has neurological effects. I was working at
MA OTA when I got a request for info on N-methyl pyrrholidone, because
the workers painting the statehouse were getting sick using a "green"
paint stripper.)

2. The general replacement of low-flashpoint organic solvents with
chlorinated organic solvents which had higher flashpoints (and were
thus safer in terms of immediate fire risk in industrial settings).
This resulted in the widespread industrial use of many carcinogens,
such as methylene chloride. If I remember correctly this happened in
the first part of the 20th century when cancer was just not on the
radar screen, which makes you wonder what is not on our "radar screen"
now that will pop up as the biggest issue of the 21st century.

3. Most of the laboratory products I've seen that switched out
mercury-based thimerosal preservatives used methyl or propyl paraben,
now known or suspected to be to be endocrine disruptors.

I can get you references later if you need them, but don't have time
now.

Sincerely,

Lara
-- 
Lara Sutherland
Environmentally Preferable Purchasing
Health Care Without Harm
ph: 303-377-7048
LSutherland@hcwh.org



Tuesday, May 1, 2007, 3:49:26 PM, KBarwick@dtsc.ca.gov wrote:

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
From:    Kathy Barwick <KBarwick@dtsc.ca.gov>
To:      <p2tech@great-lakes.net>
CC:      
Bcc:     
Date:    Tuesday, May 1, 2007, 3:49:26 PM
Subject: today's question, quick!
Files:   <none>
--====----====----====----====----====----====----====----====----====----===--
ok, any good examples of going to an alternative chemical that turned out to be worse than the original? (if anyone's still in the office--need this NOW)

we already have n-Hexane, and they don't want MTBE.

thanks for all yalls help, once again.

Kathy Barwick
Dept. of Toxic Substances Control
Office of Pollution Prevention
(916) 323-3381 or (916) 255-6421
fax (916) 255-3595


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P2TECH is hosted by the Great Lakes Information Network:
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About : http://www.great-lakes.net/lists/p2tech/p2tech.info.
A map of P2TECH subscribers can be viewed at http://www.frappr.com/p2tech.

This list is managed by the Great Lakes Regional Pollution
Prevention Roundtable (http://www.glrppr.org), part of the
P2Rx national network of regional P2 information centers
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