What is the purpose of a clearance air sample?

The purpose of a clearance air sample is to confirm the effectiveness of abatement. After asbestos removal or encapsulation work has been performed, it is critical to ensure that the area is free of residual asbestos fibers before it is reoccupied. Clearance air sampling involves taking air samples from the work area to measure airborne asbestos concentrations; these samples are then analyzed to determine whether they meet the allowable limits set by regulatory agencies.

This process helps ensure that any asbestos abatement work has been successful and that the environment is safe for re-entry. If the results indicate that asbestos levels are below the regulatory thresholds, it confirms that the abatement was effective. This aspect is crucial for protecting public health and maintaining compliance with safety regulations following remediation activities.