Mr. William Cyrs is a Health Scientist with Cardno ChemRisk. His principal areas of training and expertise include industrial hygiene, exposure assessment, exposure reconstruction, and aerosol technology with an emphasis on nanoparticles. He regularly develops comprehensive occupational histories for litigation support, and has analyzed data or assessed risk regarding asbestos, benzene, beryllium, carbon monoxide, diacetyl, and hydrogen sulfide exposure. He has also evaluated historical corporate conduct and regulatory compliance regarding asbestos, diacetyl, and noise exposure in the occupational environment. He completed his M.S. in Occupational and Environmental Health with a concentration in Industrial Hygiene from The University of Iowa College of Public Health. His prior research experience includes developing materials characterization methods, generating nanoparticles for an energy application, and developing airborne nanoparticle sampling methods. Additionally, he has worked as an asbestos air sampling professional for an environmental consulting firm.