Exposure to sewer gas can be more than just an unpleasant experience, it may also pose serious health risks. Understanding the components of sewer gas and its potential impact on your health is crucial for homeowners and property managers. In this blog, we’ll explore what sewer gas is, the health issues it can cause, and how you can effectively mitigate these risks with help from CMS Restoration.
What Is Sewer Gas?

Sewer gas is a complex mixture of toxic and non-toxic gases produced during the decomposition of organic household or industrial waste. Common components of sewer gas include hydrogen sulfide, ammonia, methane, carbon dioxide, sulfur dioxide, and nitrogen oxides. These gases can produce a distinctive, unpleasant odor, often described as the smell of rotten eggs.
Definition: Decomposition
Health Risks Associated with Sewer Gas
Exposure to sewer gas can lead to a range of health issues, varying in severity depending on the concentration and duration of exposure. Here are some potential health problems caused by sewer gas:
- Headaches and Dizziness: Low to moderate exposure to gases like hydrogen sulfide can cause headaches, dizziness, and fatigue.
- Respiratory Problems: Individuals with asthma or other respiratory conditions may experience worsening symptoms due to the irritant properties of sewer gases.
- Eye Irritation: Ammonia in sewer gas can cause irritation to the eyes, resulting in redness and watery eyes.
- Nausea and Vomiting: Exposure to strong concentrations of sewer gas can lead to nausea, vomiting, and even loss of appetite.
- Mental Health Impact: Prolonged exposure to low levels of hydrogen sulfide has been linked to irritation, depression, and poor concentration.
Preventing Sewer Gas Exposure
Preventing sewer gas exposure is key to maintaining a healthy living environment. Here are some steps you can take:
- Regular Maintenance: Ensure that all plumbing fixtures in your home or building have adequately maintained water seals. Dry traps, particularly in unused sinks or baths, can allow sewer gas to enter a building. Regular use or refilling with water can prevent this.
- Proper Venting: Check that all plumbing vents are clear and functioning correctly. Blocked vents can cause pressure problems in your plumbing system, pushing sewer gas back into the building.
- Seal Cracks and Gaps: Inspect and seal any cracks or gaps in your foundation and around pipes to prevent sewer gas from seeping into your home.
When to Call a Professional
If you notice the persistent smell of rotten eggs in your home, it may indicate a sewer gas leak. CMS Restoration offers expert services to detect and repair leaks, ensuring your home remains safe and free from harmful gases. Ignoring the signs of sewer gas can lead to severe health issues and decreased quality of life.