Asbestos Awareness Flashcards

Under the Control of Asbestos Regulations 2012, who has the 'duty to manage' asbestos in non-domestic premises?

Answer: The dutyholder — typically the owner, occupier, or anyone with responsibility for maintenance or repair of the premises

Regulation 4 of the Control of Asbestos Regulations 2012 places the 'duty to manage' asbestos on the dutyholder, defined as the person who has an obligation by contract or tenancy to maintain or repair the premises, or if no such person exists, the person in control of the premises. This duty includes identifying asbestos-containing materials, assessing their condition, and managing the risk.

What are the three main types of asbestos that may be found in UK buildings?

Answer: Chrysotile (white), amosite (brown), and crocidolite (blue)

The three main types of asbestos are chrysotile (white asbestos — the most commonly used), amosite (brown asbestos — widely used in insulation boards and lagging), and crocidolite (blue asbestos — the most dangerous, used in spray coatings and pipe insulation). All three types are now banned in the UK and all cause fatal diseases. The Control of Asbestos Regulations 2012 apply equally to all types.

What is the typical latency period between asbestos exposure and the development of mesothelioma?

Answer: 15-60 years, with an average of around 30-40 years

Mesothelioma, a cancer of the lining of the lungs or abdomen caused almost exclusively by asbestos exposure, has a latency period typically ranging from 15 to 60 years, with most cases developing 30-40 years after first exposure. This long latency means that many people diagnosed today were exposed decades ago. There is currently no cure, and it is always fatal.

What is the difference between a management survey and a refurbishment/demolition survey for asbestos?

Answer: A management survey locates asbestos-containing materials likely to be disturbed during normal occupancy, while a refurbishment/demolition survey is more intrusive and identifies all asbestos before building work begins

Under the Control of Asbestos Regulations 2012 and HSG264, a management survey is the standard survey for managing asbestos during normal occupation — it locates ACMs that could be disturbed by routine maintenance. A refurbishment/demolition survey is fully intrusive, accessing all areas including behind walls and above ceilings, and is required before any refurbishment or demolition work to identify all ACMs.

What action must a construction worker take if they accidentally discover suspected asbestos-containing material during work?

Answer: Stop work immediately, evacuate the area, prevent others from entering, report to the supervisor, and do not attempt to clean up or disturb the material further

Under the Control of Asbestos Regulations 2012, if suspected ACM is discovered unexpectedly, all work must stop immediately. The area must be evacuated and sealed off, access prevented, and the supervisor informed. The material must not be disturbed, cleaned up, or handled by unqualified persons. A licensed asbestos contractor must be called to assess and, if necessary, remove the material.

Which of the three asbestos types is considered the most hazardous to health?

Answer: Crocidolite (blue)

Crocidolite (blue asbestos) is considered the most hazardous because its fibres are the thinnest and most easily inhaled deep into the lungs, and they are highly resistant to the body's natural defence mechanisms. However, the Control of Asbestos Regulations 2012 treat all three types as equally dangerous in legal terms, and all can cause mesothelioma, lung cancer, and asbestosis.