What happens if you breathe in too much sewer smell?

Inhaling high concentrations of sewer gas for a short time can cause headaches, nausea, dizziness, fatigue, eye irritation, burning throats and coughing. At high concentrations, it can cause unconsciousness and death. Prolonged exposure to low levels of sewer gas can lead to gastrointestinal symptoms such as flatulence, vomiting and diarrhea. It can also cause fatigue, sleeplessness, irritability, and confusion. In some cases, it can also lead to liver and kidney damage. If you are exposed to sewer gas, it is important to seek medical attention as soon as possible.