Document 6R0p0KXGX08JYB0GeDeMYp3R9

1 and the mesothelial cells? 2 A Yes, sir. 3 Q Now, Doctor, you referred earlier to 4 asbestos and its causation of mesothelioma and 5 exposure. 6 What type of exposures are you talking 7 about? 8 A These are exposures, inhalation of asbestos 9 fibers. 10 Q And what does occupational -- is there a 11 difference between occupational exposure and 12 environmental exposure? 13 A Yes, sir. We are all exposed to some 14 asbestos fibers. These are naturally occurring 15 minerals. 16 They have been used in industrial 17 applications, and asbestos fibers are in the ambient 18 air almost everywhere in the world at variable 19 concentrations. 20 Sometimes just very, very low and it would 21 take large volumes of air to find even a single Page 479 j