Sewer gas is a byproduct of the breakdown of natural human waste. Some of the components are not inherently toxic. The non-toxic gases cause injury by creating an oxygen-deficient environment.
Sewer gas toxicity primarily causes neurological injury, followed by cardiac and respiratory injury.
Sewage gas is made of many components. The most toxic being hydrogen sulfide and ammonia. Other toxic components include methane, carbon-dioxide, nitrogen dioxide, sulphur dioxide, and sometimes carbon monoxide.
The concentration of these components differs with the time, sewage composition, temperature and pH of the contents.
Methane gas
Methane gas is a byproduct of . . .
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