What is the Source of Strange Sewer-Like Fumes Causing Reactions?

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The discussion centers on the challenges of sealing against sewer gases, particularly hydrogen sulfide (H2S), and the effectiveness of various materials. Participants highlight that metal seals in jars do not provide airtight properties due to gas diffusion through materials, emphasizing the importance of intermediate sealing layers. Concerns are raised about the potential for gas migration through materials like nitrile and closed-cell foam, with suggestions for using polyethylene films to reduce diffusion. The conversation also touches on the need for proper ventilation in homes to mitigate sewer gas infiltration and the effectiveness of various sealing methods. Overall, the focus is on finding reliable solutions to block harmful gases from entering living spaces.
  • #31
And then return it?
 
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  • #32
No, this one would be a keeper. I tried to attack the video but this site only attaches photos.
 
  • #33
Do you know if the multi-gas detectors that firemen use, can detect carbon disulfide?
 
  • #34
Why do you ask?
 
  • #35
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  • #36
Um, could you please use your words?
 
  • #37
Per our previous conversation, I am investigating these strange sewer like fumes to which I react. Is there a possibility that I am reacting to a combination of H2S and CH4?
 
  • #38
moriah said:
I am investigating these strange sewer like fumes to which I react. Is there a possibility that I am reacting to a combination of H2S and CH4?
I would discount carbon disulfide, CS2, as the smell you report. Carbon disulfide does not smell bad. There are many other more common sulfur based contaminants that stench, and so will mask the sweeter smell of CS2.

CS2 will not be produced by reactions in sewer gas. The synthesis of CS2 require an industrial process at much higher temperatures.

CS2 is a neurotoxin. In high concentrations it is known to cause psychosis in industrial workers. I am confident that CS2 is not at sufficient levels to cause you to imagine the problem.

The odor you are sensing is probably a thiol or thiol derivative. We are very sensitive to the smell of those compounds.
https://en.wikipedia.org/wiki/Thiol#Odor
 

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