Vapor Intrusion Investigation


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Do you know that chemicals in soil or groundwater can get into you indoor air? This is called vapor intrusion and needs for vapor intrusion investigation.

Sometimes substances that contain chemicals are leaked from a storage tank or spilled on the ground at a storage yard or factory.

These chemicals can seep down into the soil and groundwater.

There are a number of chemicals which can travel through soil as vapors. These vapors can intrude into nearby buildings and contaminating the indoor air. Your premise and indoor air might be the one.


You might wondering how this intrusion can happen. Yes, chemical vapors can intrude your indoor through cracks in the foundation. You might not even realize these cracks. The amount of vapor can vary from building to building based on several factors such as your ventilation system and the number of leaks in foundations.

If you are thinking vapor intrusion is something normal, nope, you are wrong. Vapor intrusion is not a common thing and in fact, in doesn’t happen in every contaminated soil or groundwater. However investigating vapor intrusion is something that should be done by homeowners or building owners in order to consider the possibility whenever there is a known source of soil or groundwater contamination nearby your indoor area.


Vapor intrusion investigation commonly involves collecting samples of soil gas or groundwater near the contamination site. Sampling might be done closer to or on your property if considered necessary.

Proper investigation is important as you cannot detect vapor intrusion by smell. This is due to solvents from commercial and industrial sites usually create an odor at low concentrations which unfortunately still pose a health risk.

Nowadays regulating agencies continue to develop guidance and screening on vapor intrusion. Companies such as EnviroForensics can help you in assessing your compulsory responsibility and the real level of risk which might associated with subsurface impacts at or near your site.

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