If asbestos has not been removed by a professional, followed by a post-removal air test to check the air quality is habitable, there is always a chance that a high quantity of fibres could remain. So, how long does asbestos stay airborne after disturbance? Theoretically after 48-72 hours dust particles and fibres in the air should have settled. However, due to the small nature of asbestos fibres, the slightest air movement could resurrect the fibres from the surrounding surfaces and floor into the air.

If you are worried that you’ve disturbed some asbestos, or you feel that the area isn’t safe after removal, please feel free to contact us. A simple reassurance air test could give you peace of mind in knowing that the air has no/minimal fibres present in it.

How Long Does Asbestos Stay Airborne After Disturbance

Are asbestos fibres visible?

Asbestos fibres are not visible to the naked eye. If you can physically see asbestos that has broken away from its parent material, then it is classed as debris, and will be a large cluster of fibres. Asbestos fibres are incredibly small, so small in fact that they are roughly ten times smaller than the width of a human hair.

These fibres should only be released when the material has sustained damage or have received disturbance; thus, leaving an ACM alone which has good integrity will not release any fibres.

Will asbestos fibres settle?

As we’ve already mentioned previously, asbestos fibres are very small and light, and can be kept in the air very easily with minimal air movement. In time, they will settle, with the larger fibres settling first.

The main issue is that after they have settled, it doesn’t take much for them to re-join the circulating air. This is why it’s so important that asbestos is removed carefully and professionally, as well as having an air test afterwards to liberate all doubts.