Vapor intrusion poses a significant potential to expose people to harmful compounds and this is no different in new construction than in existing structures. As VI has grown in publicity over the past 20 years, the scientific understanding of VI has also grown...
Vapor intrusion is the migration of vapor-forming chemicals from any subsurface source into a office, home, or industrial building. It all started in the 1980s with concerns over radon intrusion. During the 90s, environmental professionals began to understand that...
Vapor intrusion is the migration of vapor-forming chemicals from any subsurface source into a office, home, or industrial building. It all started in the 1980s with concerns over radon intrusion. During the 90s, environmental professionals began to understand that...
Soil gas is usually analyzed with the same methods used for indoor air, which in the U.S., generally means EPA Method TO-15. TO-15 specifies Gas Chromatograph/Mass Spectrometer (GC/MS) analysis of samples from evacuated stainless-steel “Summa” canisters. But because...
This EnviroClass will focus on the use of "risk-based," "Large Volume Purge (LVP)" subslab vapor sampling methods and data to better assess site-specific, VI risk. Roger Brewer is a world leader on vapor intrusion and he has spent over 18 months in China working with...
Vapor intrusion is the migration of vapor-forming chemicals from any subsurface source into a office, home, or industrial building. It all started in the 1980s with concerns over radon intrusion. During the 90s, environmental professionals began to understand that...