Asbestos is a naturally occurring mineral that was once widely used in construction and other industries due to its durability and heat-resistant properties. However, it was later discovered that exposure to asbestos can cause serious health problems, including lung cancer, mesothelioma, and asbestosis.

Because of the dangers associated with asbestos, it has been banned in the UK since 1999. However, many older buildings still contain asbestos, which can be released into the air if the material is disturbed or damaged.