From: Dan Blunk <000006969d6900fa-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
Subject: Re: [DCHAS-L] SO2 exposure
Date: Tue, 12 Mar 2019 08:30:38 -0700
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: 098F3B8F-53CF-4F52-9239-AA4B1CD07273**At_Symbol_Here**ucsc.edu
In-Reply-To <201B991F-9E4F-47A6-A8D2-F0AF2BB60EE3**At_Symbol_Here**depauw.edu>


Hi David,

SO2 can form sulfurous acid in contact with body moisture and has been known to cause subsequent irritation and rash post exposure, similar to chloracne following a Cl2 exposure.
Dan

Dan Blunk
Formerly
Env Progs
UCSC

> On Mar 12, 2019, at 8:03 AM, David Roberts wrote:
>
> Hi all,
>
> I was hoping somebody could help us out on an SO2 exposure issue. A few weeks back we had a faculty member defrosting a freezer in the lab. This was an old freezer (circa 30‰??s/40‰??s), and he was defrosting it to donate it to the theater department.
>
> Long story short (too late), he ended up rupturing the coolant line, and all of the coolant released from the compressor. Turns out the coolant was SO2. He left the room soon, but he did get in some big breaths. He didn‰??t seem to form water in his lungs at the time (he did go to the doctor immediately). He still has a taste of sulfur, and he‰??s developed a rash that he feels is due to the exposure. Three weeks later he is still showing some symptoms, and so we are just trying to evaluate what he should do and how to handle this.
>
> Any thoughts would be helpful. Thanks
>
> Dave
>
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