Asbestos is a mineral that was commonly used in construction materials before it was banned in the UK in 1999. It was often mixed with other materials to create products such as cement, insulation, ceiling tiles, and floor coverings, among others. Although it was a popular choice due to its durability and fire-resistant properties, it was discovered to pose serious health risks to individuals who were exposed to its fibres.

When asbestos-containing materials are disturbed or damaged, they can release tiny fibres into the air, which can be easily inhaled. These fibres accumulate in the lungs and can cause serious respiratory diseases such as lung cancer, mesothelioma, and asbestosis. The risks of contracting these diseases increase with the duration and intensity of the asbestos exposure.

Asbestos is still present in many buildings that were built before 2000, so it's essential to have it identified and managed correctly to prevent any health hazards.