Asbestos Air Monitoring

4-Stage Clearance Monitoring for Certificate of Reoccupation

Clearance Monitoring must be conducted by a UKAS accredited analytical company following licensable removal work. The Clearance Monitoring involves four distinct stages:

• • Stage 1:Preliminary check of site condition and job completeness;
• • Stage 2:A thorough visual inspection inside the enclosure / work area;
• • Stage 3:Air Monitoring;
• • Stage 4:Final assessment post-enclosure / work area dismantling

Only after successful Clearance Monitoring can an area be classed as safe to re-enter.

Personal Monitoring

Personal Monitoring is used to ensure that the person wearing the sampling pump is adequately protected from whatever levels of airborne asbestos fibres are present and to ensure that the control measures in use are suitable and sufficient.

Background Monitoring

To establish ambient fibre levels prior to any activity which may lead to airborne asbestos fibres.  Sample points should cover likely sources of asbestos fibre and likely areas of frequent human occupation.

Reassurance Monitoring

Reassurance Monitoring is carried out to give reassurance that the area is safe for occupation following a number of different scenarios. For example:

• If non-licensable asbestos has been removed, Reassurance Monitoring is undertaken to ensure no asbestos fibres remain in the former work area.
• Following a breach in an asbestos enclosure and the subsequent clean up, Reassurance Monitoring is required to demonstrate that the area is safe to re-enter.
• Following the discovery of damaged asbestos in an area and subsequent remedial actions, Reassurance Monitoring is undertaken to demonstrate that the remedial actions have been effective.

Leak Monitoring

To monitor fibre levels adjacent to enclosures to ensure that the control measures in place are effectively preventing the release of airborne asbestos fibres, and that the integrity of the enclosure is being maintained.