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Subject: FW: Summary: Toluene? A peroxide former?!
Date: Tue, 10 Jul 2007 16:27:46 -0400
Author: Elizabeth Gregory 		Next by Date:
Subject: Cooling Tower Hazards
Date: Wed, 11 Jul 2007 08:48:12 -0400
Author: Phil Anderson


Date: Tue, 10 Jul 2007 17:38:42 -0500
Reply-To: "Gary M. Kehoe" <GKehoe**At_Symbol_Here**MWGEN.COM>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: "Gary M. Kehoe" <GKehoe**At_Symbol_Here**MWGEN.COM>
Subject: Cooling Tower Hazards
Comments: To: ih**At_Symbol_Here**ls.eei.org
Good Afternoon,

I received a question this afternoon about potential hazards associated 
with exposure to water vapor/mists from our mechanical draft cooling 
towers at one of our electric generation plants.  The plant is located on 
a river and the cooling towers are used to cool the water before it is 
discharged back into the river.  It is a closed loop system so the river 
water never comes into contact with any water in the system side. 

Depending on weather conditions and wind direction maintenance workers 
sometimes are exposed to water mist from the adjacent cooling towers. 
Concern has been voiced about exposure to biological agents (i.e - 
legionnaires, etc.) in these situations.  Has anyone ever evaluated these 
types of exposures in this situation or know of research that has been 
done relative to this subject?  Any good leads or ideas are gratefully 
welcomed.

Thanks,

Gary M. Kehoe, CIH
Senior Industrial Hygienist
Midwest Generation EMG
312-583-6103
312-925-1813 (C)
312-788-5533 (F)

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