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Subject: [DCHAS-L] AD: CHAS WORKSHOPS IN SF

Date: Jul 15, 2014 16:18 UTC

Author: NEAL LANGERMAN <neal**At_Symbol_Here**chemical-safety.com>

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Subject: Re: [DCHAS-L] chemicals and bikes

Date: Jul 16, 2014 02:27 UTC

Author: DAVID <dakatz45**At_Symbol_Here**MSN.COM>

From: Ferm, Barret <fermbarreta**At_Symbol_Here**sau.edu>

Subject: [DCHAS-L] Dangerous news re: H2S

Date: Jul 15, 2014 17:20 UTC

Reply-To: DCHAS-L

In-Reply-To:  

Demystify: 

This came across my virtual desk, and had to share. Hopefully this "news" won't lure DIY health enthusiasts to experiment with H2S. Particularly alarming is the statement in the blurb that says H2S is harmful in "large doses," but that neglects the fact that the NIOSH 10-minute ceiling is 10 ppm!

http://m.theweek.com/speedreads/index/264585/speedreads-study-smelling-farts-may-be-good-for-your-health

Barry Ferm

.Ba Fm.

Barret A. Ferm, Ph.D.
Chemical Hygiene Officer
Chemistry Laboratory Coordinator

What you see on the outside, and what you are on the inside, are poles of the same magnet. -Alan Watts


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