Date: Fri, 26 Mar 2010 17:36:16 -0700
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: "Stephen W. Hemperly" <Steve.Hemperly**At_Symbol_Here**HITACHIGST.COM>
Subject: Re: H2S Antidotes
In-Reply-To: <003b01cacd3e$f5ece550$4101a8c0**At_Symbol_Here**smithrocket>
All --

In response to Ken Smith's inquiry about antidotes to hydrogen sulfide
exposure, I did a quick online search with the following results:

One reference (see link below) states that there is no proven antidote to
hydrogen sulfide poisoning.

A second reference (at the link below), alluded to the apparent successful
use of sodium nitrite in a single case of H2S poisoning and suggested that
the efficacy of this treatment warranted further investigation.

I hope this response is of some value.

Best regards,


Stephen Hemperly, MS, CIH, CSP, CLSO
Office: (408) 717-7704; Fax: (408) 717-9066
Mobile: (925) 818-8052
Advisory Industrial Hygienist
Environmental Health and Safety
Hitachi Global Storage Technologies, Inc.
3403 Yerba Buena Road - Room 2110G
San Jose, CA 95135-1500

None of us is as strong as all of us.

Industrial hygienists are scientists and engineers committed to protecting
the health and safety of people in the workplace and the community.

             Jean & Ken Smith                                              
             Sent by: DCHAS-L          DCHAS-L**At_Symbol_Here**                
             Discussion List                                            cc 
                                       [DCHAS-L] H2S Antidotes             
             03/26/2010 04:49                                              
             Please respond to                                             
              Discussion List                                              

Hi All,

I just had the question posed to me  does anyone know of an antidote to
H2S exposure?.  This is oil refinery related where a sudden exposure to H2S
could happen if something goes wrong with compressors and other pipelines
and machinery.  If anyone has knowledge of an antidote, please let me know.
I believe that this might have relevance in other places also.

Ken Smith

Retired CIH

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