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Previous by Date: Subject: Re: [DCHAS-L] Radon Removal Date: May 17, 2012 2:48:35 PM EDT Author: "Dube, Mike (JUS)" |
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Radon gas is a common problem in homes
built anywhere on the Canadian Shield; blasting granite to put in a home
foundation faces this issue as well. Our solution – install a ventilation
fan in the foundation wall, drawing air out of the closed space. This
ventilation flow reduces the problem to negligible amounts. For your lab room –
increase ventilation flows by adjusting HVAC damper settings; or install a
ventilation fan to the outside and pressurize the room with fresh air, blowing
out into the lab, where building HVAC will remove it. A simple small furnace
filter on the fresh air fan will take care of outdoor particulates. This
process is minimally invasive.
Michael J. Dube
Program Specialist
Emergency Preparedness and Response Unit
(EPRU)
Office of the Fire Marshal of Ontario (OFM)
Ministry of Community Safety and Correctional Services (MCSCS)
Office: (705)687-9696
Cell: (705) 715-4768
Pager: (705) 735-5935
Fax: (705) 687-8636
From:
DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of ILPI
Sent: May 17, 2012 1:15 PM
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Subject: Re: [DCHAS-L] Radon
Removal
Presumably, the radon is coming from the soil beneath the building in
which case the usual remediation method is sub-slab depressurization.
Basically, you drill a 4" hole through the slab into the soil
beneath, run a plastic pipe up to the roof where an exhaust fan sucks out the
radon-contaminated atmosphere beneath the slab. This stops the radon
before it can enter the building itself. Google the term "sub-slab
depressurization" and you'll get lots of drawings, diagrams and
descriptions.
Any competent radon remediation expert (guess the Yellow Pages are
still useful!) can handle this. For a home, it might run $1,000 or so,
installed.
Rob Toreki
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On May 17, 2012, at 9:31 AM, Butler, David H. wrote:
Good Morning,
We have a small room
in our laboratory where radon gas buildup is an issue that interferes with our
alpha detection equipment.
Anyone know of air
filtration devices or any other solution that might help us eliminate this
problem?
Thanks for your time
and help.
David
H. Butler
Lab
Quality/Safety Mgr., MBA, CSSBB, CMQ/OE, CHO
9/80
Group A
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