Asbestos Exposure Mesothelioma Asbestos is made up of an assortment of minerals that are joined to form thin, fibrous substances. When these materials are agitated, tiny fibers may be inhaled. They adhere to the lung's lining (pleura), and sometimes reach the heart or abdomen lining (peritoneum or tunica vaginalis). Exposure https://www.instapaper.com/p/14475827