Asbestos is a naturally occurring mineral that had been used for many years in building materials due to its resistance to heat, fire, and chemicals. However, exposure to asbestos fibers can cause serious health problems, such as lung cancer, mesothelioma, and asbestosis.

Many properties built before 2000 in the UK, including those in Portesham, may contain asbestos. ACMs are generally safe if they are undisturbed or in good condition. It is when they are damaged that the fibers can be released and pose a health risk.