Asbestos is a fibrous mineral that is mined and used in construction and other industries. When asbestos fibers become airborne and are breathed into the lungs, they can cause asbestosis, mesothelioma, lung cancer, and other problems. Most asbestosis happens to those directly exposed to asbestos over time and their families. Factors in asbestosis include the amount of asbestos someone is exposed to, how long they were exposed, and more. Asbestosis symptoms include a tight chest, a crackling sound in the lungs, persistent cough, chest pain, and more. Follow the links below to find WebMD's comprehensive coverage about how asbestosis is contracted, what it looks like, how to treat it, and much more.