Air monitoring for airborne asbestos fibres?

Asbestos air monitoring conducted by a Licensed Asbestos Assessor is mandatory for all friable asbestos removal in Australia. Asbestos air monitoring must also be:

  • Undertaken during asbestos removals to demonstrate the effectiveness of the removal method;
  • Carried out after the removal has been completed to show that the area is decontaminated.

Asbestos air monitoring is not required for non-friable asbestos removal but is strongly advised and is always considered good practice.

Monitoring Methods

Exposure Monitoring
This process involves taking samples in the workers breathing zone so to assess the risk of exposure to airborne asbestos fibres. The data gathered from this type of monitoring is used to assess the risk to the worker.

Control Monitoring
This method is used to assess the effectiveness of control measures while asbestos removal is being undertaken. Air monitors are placed at fixed locations to test the air for airborne asbestos fibres with reports issued to client before work commences the next day.

Background Monitoring
This process involves conducting tests for airborne asbestos fibres prior to the commencement of any work which may disturb materials containing asbestos.

Clearance Monitoring
These tests are carried out after the completion of asbestos removals. An area is only deemed safe if the level of airborne fibres present measured is below 0.01 fibres/mL.