Asbestos is a mined mineral that is one of the most common environmental hazards in the world.
It is present in more than 3000 manufactured products. Some materials that contain asbestos are construction materials such as shingles and cement pipes, friction materials to include brakes, gaskets, and clutch pads, asphalt coats and sealants, and other similar products. The advantages of asbestos products are the result of its resistance to heat and chemicals, high tensile strength and low cost compared to man-made materials. Asbestos fibers may enter the body through inhalation or ingestion. People who work with asbestos are most likely to be exposed by breathing in the material.