Sewer Gas Infiltration

Sewer gas is a complex mixture of toxic and nontoxic gases that can be present at varying levels depending upon the source. It is formed during the decay of household and industrial waste. Highly toxic components of sewer gas include hydrogen sulfide and ammonia

Sewer gas also contains methane, carbon dioxide, sulfur dioxide, and nitrous oxides. In addition, chlorine bleaches, industrial solvents, and gasoline are frequently present in municipal and privately owned sewage treatment systems.

The principal risks and effects associated with exposure are:

  • Hydrogen Sulfide Poisoning : Exposure to low levels of Hydrogen sulfide causes irritation of the eyes and respiratory tract. Other symptoms include nervousness,  dizziness, nausea, headache, and drowsiness. This  gas smells like rotten eggs, even at extremely low  concentrations. Exposure to high concentrations can  interfere with the sense of smell, making this warning  signal unreliable. At extremely high levels, hydrogen  sulfide can cause immediate loss of consciousness and death.
  • Asphyxiation : High concentrations of methane in en closed areas can lead to suffocation, as large amounts  of methane will decrease the amount of oxygen in the air. The effects of oxygen deficiency include headache, nausea, dizziness and unconsciousness. At very low oxygen concentrations (<12%), unconsciousness and death may occur very quickly and without warning. Sewer gas diffuses and mixes with indoor air, and will be most concentrated where it is entering the home. It can accumulate in basements.
  • Explosion and Fire : Methane and hydrogen sulfide are flammable and highly explosive.

The Green Drain can help to prevent sewer gas infiltration and potentially fatal cross contamination and infection spread caused by unprotected drains. The Green Drain is an economical Drain Trap Seal Device that allows water to flow down the drain while preventing Pests, Odors, and Harmful Gases/Pathogens from infiltrating the living or work space.

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Sewer Gas Infiltration

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