The canister is then sent to a laboratory for analysis. Other more costly methods involve use of air monitoring equipment for a period of days to months. The Formaldehyde propellant can cause respiratory distress or severe allergies in many people. Suspect insulation materials can be sampled and analyzed for UFFI content. Formaldehyde is also used in many construction glues, sealant, and wood and carpet finishes.
Asbestos containing material in sound condition poses a lower health risk than when damaged.
Improper removal of suspected asbestos containing material may release thousands of asbestos fibers into a structure which can pose a long term exposure risk to occupants of the building. Samples of suspect asbestos containing materials can be collected and analyzed for asbestos content by properly equipped and trained personnel. Leaks from ASTs are usually readily identifiable and are indicated by stained soils and stressed vegetation. ASTs, if not in use, should be checked for liquid content, emptied, and removed from the site. All liquids from the AST should be disposed of properly.