Asbestos Exposure Mesothelioma Asbestos is a class of minerals that bind together to create fibrous, thin materials. When these materials are disturbed, tiny fibers float in the air and could be inhaled. They stick to the lung's lining (pleura) and may reach the abdomen or heart lining (peritoneum or tunica https://articlescad.com/sage-advice-about-asbestos-illness-mesothelioma-from-a-five-year-old-413040.html