Asbestos Exposure Mesothelioma Asbestos is a grouping of minerals that are bonded together to create thin, fibrous substances. When these materials are disturbed tiny fibers can be breathed in. They adhere to the lining of the lungs (pleura), and sometimes get into the abdomen or heart lining (peritoneum or tunica https://reyes-pallesen.hubstack.net/learn-to-communicate-asbestos-law-to-your-boss/