DCHAS-L Discussion List Archive
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Subject: Re: radioactive salts
Date: Thu, 19 Nov 2009 11:29:12 -0500
Author: Andrew Gross
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Subject: Hoods
Date: Thu, 19 Nov 2009 16:12:51 -0500
Author: Edward Senkbeil
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Date: Thu, 19 Nov 2009 14:18:07 -0500
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: Carol Lentz <lentzcw**At_Symbol_Here**GMAIL.COM>
Subject: Re: Latex degradation, low humidity, Chinese drywall?
In-Reply-To: <002a01ca6931$fd0f41f0$f72dc5d0$**At_Symbol_Here**net>
What about the quality of the lighting? It might explain the hasty
degradation of latex, and the headaches. Low humidity (<40%) for MY nose
could be the culprit for stuffy noses. Perhaps it isn't just one thing?
Carol Lentz
Michigan State University
On Thu, Nov 19, 2009 at 11:04 AM, Laurence Doemeny wrote
:
> Have you checked to ensure that all traps in sinks and floor drains are
> not dry?
>
>
>
> *From:* DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**list.uvm.edu] *On Behalf
> Of *Debbie M. Decker
> *Sent:* Wednesday, November 18, 2009 11:35 AM
> *To:* DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
> *Subject:* [DCHAS-L] Latex degradation, low humidity, Chinese drywall?
>
>
>
> Please excuse the cross-postings:
>
>
>
> I=92m working with a group that works in a secured, containment facility.
> The supply air is one pass, the exhaust is HEPA filtered and air change
> rates are in the 10-15 ACH. Rubber bands, latex gloves, the gloves on a
> glove box, rubber stoppers, etc. degrade very quickly in this building
- a
> matter of months. This causes consternation among my building occupants
-
> =93if latex degrades so quickly, what is this building doing to me?=94
>
>
>
> I have done the following: datalogged temperature, %RH, CO and CO2 twice
,
> at different times of year, for a week. First set showed extremely low
> humidity - below 20%rh - all other measurements within customary. Se
cond
> round showed %rh in a more normal range - 35-40%rh. Magnetic fields we
re at
> or below background. No radioactivity was detected. The building doesn
=92t
> have any weird smells, evidence of mold or water intrusion. The mechanic
al
> system is working as designed, filters in place and without high pressure
> drop, coils clean, etc., according to my building engineers.
>
>
>
> People complain of headaches and stuffy noses, general malaise after
> working in the building for some period of time. Someone has suggested
> Chinese drywall might be a culprit but I don=92t know as it quite fits.
>
>
>
> Whaddya think? All ideas welcome, at this point.
>
>
>
> Thanks,
>
> Debbie
>
> --------------------
>
>
>
> Debbie M. Decker, Campus Chemical Safety Officer
> Environmental Health and Safety
> University of California, Davis
> 1 Shields Ave.
> Davis, CA 95616
> (530)754-7964/(530)752-4527 (FAX)
> dmdecker**At_Symbol_Here**ucdavis.edu
> Co-Conspirator to Make the World A
> Better Place -- Visit www.HeroicStories.comand join the conspiracy
>
>
>
>
>
What about the quality of the lighting? It might explain the hasty deg
radation of latex, and the headaches. Low humidity (<40%) for MY nose co
uld be the culprit for stuffy noses. Perhaps it isn't just one thing?
=A0
Carol Lentz
Michigan State University
=A0
On Thu, Nov 19, 2009 at 11:04 AM, Laurence Doeme
ny
<ldoemeny**At_Symbol_Here**cox.n
et> wrote:
Have you checked to e
nsure that all traps in sinks and floor drains are not dry?
=A0
=A0
Please excuse the cross-postings:
=A0
I=92m working with a group that works in a secured,
containment facility.=A0 The supply air is one pass, the exhaust is HEPA fi
ltered and air change rates are in the 10-15 ACH.=A0 Rubber bands, latex gl
oves, the gloves on a glove box, rubber stoppers, etc. degrade very quickly
in this building - a matter of months.=A0 This causes consternation amon
g my building occupants - =93if latex degrades so quickly, what is this b
uilding doing to me?=94
=A0
I have done the following: =A0datalogged temperature
, %RH, CO and CO2 twice, at different times of year, for a week.=A0 First s
et showed extremely low humidity - below 20%rh - all other measurements
within customary.=A0 Second round showed %rh in a more normal range - 35
-40%rh.=A0 Magnetic fields were at or below background.=A0 No radioactivity
was detected.=A0 The building doesn=92t have any weird smells, evidence of
mold or water intrusion.=A0 The mechanical system is working as designed,
filters in place and without high pressure drop, coils clean, etc., accordi
ng to my building engineers.
=A0
People complain of headaches and stuffy noses, gener
al malaise after working in the building for some period of time.=A0 Someon
e has suggested Chinese drywall might be a culprit but I don=92t know as it
quite fits.
=A0
Whaddya think?=A0 All ideas welcome, at this point.<
/p>
=A0
Thanks,
Debbie
--------------------
=A0
Debbie M. Decker, Ca
mpus Chemical Safety Officer
Environmental Health and Safety
Universi
ty of California, Davis
1 Shields Ave.
Davis, CA=A0 95616
(530)754
-7964/(530)752-4527 (FAX)
dmdecker**At_Symbol_Here**ucdavis.
edu
Co-Conspirator to Make the World A
Better Place -- Visit www.HeroicStories.
com and join the conspiracy
=A0
=A0
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