Asbestos is a naturally occurring mineral that was widely used in construction materials in the past. It's known for its heat and fire-resistant properties, making it a popular choice for insulation, roofing, flooring, and other applications.

However, asbestos is highly toxic and poses a significant health risk if it's disturbed or damaged. When asbestos fibers become airborne, they can be inhaled and cause serious diseases such as lung cancer, mesothelioma, and asbestosis.

Due to the health hazards associated with asbestos exposure, the use of asbestos in construction materials was banned in the UK in 1999. However, many buildings constructed before this date may still contain asbestos, and it's essential to identify and manage any potential risks.