Vapor Intrusion and Indoor Air Quality Services
Vapor intrusion (VI) is an exposure pathway resulting from the migration of volatile chemicals from the subsurface into overlying buildings. A VI source, migration route, and a human receptor must be present for the pathway to potentially be complete and pose a health risk.
Common VI contaminants Include:
- Chlorinated Volatile Organic Compounds (PCE, TCE, Vinyl Chloride)
- Benzene (Petroleum)
- Methane (Landfills)
Sampling the vapor under a building is the best way to learn if chemical vapors may be entering a building at concentrations that could pose a health risk. This is called collecting a "sub-slab vapor sample." Sub-slab sampling involves drilling a small hole in a discrete location through the floor, installing a vapor pin (i.e., an air valve) and collecting an air sample from beneath your home. If the test results show there may be a problem, indoor air samples may also be collected.
Indoor Air Quality
BLDI provides testing for asbestos containing building materials, lead, mold and radon. Our team provides support for projects related to real estate acquisitions, property development and rehabilitation projects. BLDI helps clients meet their business and regulatory needs by identifying and testing suspect materials; providing compliance assistance with government regulations; coordinating with abatement contractors; and ensuring that projects are thoroughly documented and reported.
See our Work in Action: