When Asbestos Air Monitoring is Required?
Asbestos air monitoring means sampling of airborne asbestos fibre to assist in the risk assessment and evaluation of control measures associated with the removal regarding human exposure to asbestos fibres by inhalation. The asbestos air monitoring and sample analysis must be undertaken in accordance with with the Guidance Note on the Membrane Filter Method for Estimating Airborne Asbestos Fibres [NOHSC:3003 (2005)]. The laboratory undertaking the analysis must be NATA accredited.
Asbestos fibre air monitoring is required to be undertaken by a Licensed Asbestos Assessor (eg. competent person or occupational hygienist) for the following situations depending on the purpose of the assessment:
- Background asbestos air monitoring – at any time where it is likely that asbestos fibres are released into the air for an occupied area
- Background asbestos air monitoring – to complement the risk assessment of an asbestos inspection or asbestos survey and determine urgency for removal or treatment option where unstable or deteriorated asbestos containing material is identified
- Background, control and clearance asbestos air monitoring – for the removal of any quantity of friable asbestos and removal of non-friable asbestos if determined as needed by a risk assessment and if the asbestos removal is near a public location
- Exposure air monitoring – undertaken for asbestos workers to estimate and evaluate worker’s exposure.