Date: Mon, 7 Mar 2005 09:40:13 -0800
Reply-To: "Leland, Stephen F" <sleland**At_Symbol_Here**SKYMAIL.CSUS.EDU>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: "Leland, Stephen F" <sleland**At_Symbol_Here**SKYMAIL.CSUS.EDU>
Subject: Re: [aihaih-list] Mercury Spill Clean up
Comments: To: "Gary M. Kehoe" ,
aihaih-list**At_Symbol_Here**, ih**At_Symbol_Here**

Gary, A few years ago I assisted Larry McLouth, CIH, of Lawrence Berkeley National Lab in completing a paper entitled "Controlling mercury spills in laboratories with a thermometer exchange program" published in the September/October 2002 issue of the ACS publication "Chemical Health and Safety". This article contains information about selecting a clearance limit, which was accepted at 0.003 mg/m3 for an occupied space. Steve Leland, CIH Environmental Health & Safety CSU, Sacramento (916) 278-5447 -----Original Message----- From: Gary M. Kehoe [mailto:gkehoe**At_Symbol_Here**] Sent: Monday, March 07, 2005 7:18 AM To: aihaih-list**At_Symbol_Here**; ih**At_Symbol_Here**; DCHAS-L**At_Symbol_Here**LIST.UVM.EDU Subject: [aihaih-list] Mercury Spill Clean up I am in the process of reviewing and updating our mercury spill procedure. In taking to a hazmat responder they referenced a "surface" standard of 3000 nanograms/cubic meter as a clearance level after a spill clean up. The person I was speaking with could not adequately explain the rationale for the "standard" nor could they tell me what organization published the standard other than that it was one they used when working with a local utility. They also indicated that breathing zone levels were generally well within the TLV even when the surface contamination was higher than 3000 ng/M3. They are measuring the surface with a direct reading meter. Is anyone aware of this "standard" (or any others)? What are your thoughts on the "standard"? What do you use? Thanks, Gary M. Kehoe, CIH Senior Industrial Hygienist Midwest Generation EME LLC 312-583-6103 312-925-1813 (C) 312-788-5533 (F) [Non-text portions of this message have been removed] To Post a message, send it to: aihaih-list**At_Symbol_Here** To Unsubscribe, send a blank message to: aihaih-list-unsubscribe **At_Symbol_Here** Group rules are available at: Message Archives are at: Yahoo! Groups Links <*> To visit your group on the web, go to: <*> To unsubscribe from this group, send an email to: aihaih-list-unsubscribe**At_Symbol_Here** <*> Your use of Yahoo! Groups is subject to:

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