Jump to main content.  Vapor Intrusion  Vapor intrusion occurs
when gases or vapors from chemicals and petroleum products
migrate into occupied buildings. It may be harmful for
individuals to breathe indoor air that contains the vapors of
these chemicals inside such buildings.  Vapor intrusion is now a
standard consideration during investigations related to the
Resource Conservation and Recovery Act (RCRA); Underground
Storage Tanks (UST); and the Comprehensive Environmental
Response, Compensation and Liability Act (CERCLA/Superfund). 
Q: What types of homes does vapor intrusion affect? A: Vapor
intrusion can affect any type of home.  Q: What health concerns
are related to vapor intrusion? A: The health risks associated
with vapor intrusion vary based on the type of chemicals, the
levels of the chemical found, the length of exposure and the
health of the exposed individuals. At high concentrations some
temporary symptoms may include eye and respiratory irritation,
headaches and nausea. Over many years, low-l