HSE research A comparison of the risks from different materials containing asbestos and found that:
• The fibre concentrations were still less than the control limit when removed from a wider range of surfaces and personal airborne fibre concentrations were increased by less than a quarter when air extraction was switched off;
• It is unlikely that fibre releases would exceed 0.01 f/cm3 in the immediate area just outside removal enclosures whilst TCs are being removed;
• When appropriate controls were not used (not in compliance with the Regulations) and TCs were dry scraped with no air extraction, short terms peaks of up to 0.2 f/cm3 could be produced. However, it was unlikely that the proposed control limit would be exceeded.
A comparison of the risks from different materials containing asbestos
To provide further background information for the Commission to reach agreement on the risks from work with textured decorative coatings containing abestos (TCs); and to agree that a limit for sporadic and low intensity exposure should be included in the Regulations rather than the ACoP (in accordance with legal advice).
