Asbestos: Frequently asked questions

Last updated: 22 November 2024

This page contains frequently asked questions on asbestos.

 

Removal and disposal

 

Management of asbestos in workplaces

We have asbestos cement building materials at our workplace. Should we do surface testing to test for fibres in the dust?

Asbestos fibres in settled dust are indicators of workplace cleanliness rather than health risk. Settled fibres are often larger than the tiny respirable fibres associated with health risk.  There are no standards available to compare settled dust fibre levels against health risk.

Fibres are commonly detected in settled dust in asbestos cement buildings, especially in seldom disturbed areas such as the top of roof beams. Such testing should only be undertaken with a clear understanding as to what action will be taken if fibres are detected.

My asbestos roof has deteriorated and I have asbestos containing dust in my ceiling space and/or premises. What should I do?

Over time, asbestos cement roofs weather or degrade due to thermal expansion/contraction, and as a result typically release some asbestos fibres. Asbestos roofs are now very old and removal should be considered as a long term management strategy.  In the interim, other controls may be required if the roof space is used by workers, such as conducting an environmental clean. It should be noted that if the asbestos roof is still present, an environmental clean does not prevent further fibres being deposited in the roof space over time. If the roof space is not accessed, an environmental clean is not generally required.

In terms of asbestos containing dust in a work space, every case will be unique and the extent of asbestos dust contamination should be investigated by a competent person (a person with appropriate training, knowledge and experience in this matter such as an occupational hygienist) who can assist with assessing the risks and determining appropriate control strategies. The risk relates to the extent of contamination, nature of tasks done in the space, likelihood and extent of dust disturbance, and the frequency and duration of exposure.  Settled dust samples can assist in determining how much asbestos is present and in determining the short term and longer term controls. However, dust samples of this nature by themselves do not represent the risk to health or the level of exposure.

For further information and guidance on whether a licenced asbestos removalist is required, see Safe Work Australia's Minor contamination’ of asbestos-containing dust or debris Fact Sheet.

General

Further information

WorkSafe

WorkSafe Queensland