It is the collective name for a group of naturally occuring fibrous minerals. The picture opposite shows a piece of raw Amosite as it would appear when it has just been mined.
Why is it dangerous?
The fibres that make up the mineral are dangerous when breathed in. The fibres can become lodged in the lungs and the body's normal defences cannot break them down. Once lodged the fibres can caused scarring to the lung tissue.
After a number of years it is possible for this scarring to develop into one or more serious conditions, some of which are fatal.
Why was it used?
Asbestos is one of, if not, the best insulation materials known to man. It is versatile and can be incorporated into virtually any construction material used. It is chemically inert and offers excellent resistance to acids and alkalis. It is also mechanically very strong.
What should I do if I find asbestos?
Asbestos is only dangerous to your health when the fibres are breathed in. This can only happen if the fibres are airborne. The fibres are contained within the matrix of the material. If the material is not disturbed then the fibres should not be released, so avoid disturbing asbestos containing materials at all costs.
Can I work with asbestos?
Definately not. Unless you have the correct training, guidance and equipment you should not carry out any work which is likely to disturb asbestos materials. If by your actions you expose anyone to asbestos you and your employer are liable to prosecution resulting in a heavy fine and possible imprisonment.