Man-Made Fiber May Compound Mesothelioma Risk from Asbestos
Workers exposed to both asbestos and another insulation material called refractory ceramic fiber (RCF) are more than 4 times as likely to develop malignant pleural mesothelioma as are workers who were only exposed to asbestos. That is the conclusion of a new study from a team of French scientists at the University of Bordeaux. Asbestos, a fibrous mineral used in insulation and building materials, has been known for decades to increase the risk of mesothelioma. RCF is a manmade aluminum-silicate-based material that is also used for insulation, particularly in high-heat industrial applications. Although some animal studies on RCF have suggested that the material might also cause cancer, a 2012 study in Inhalation Toxicology found no increase in lung cancer or…