I have 25 years of experience and specialize in the field of industrial and occupational hygiene with specific knowledge in the areas of benzene, formaldehyde and asbestos exposures, exposure assessment and industrial exhaust ventilation design. I have published on such topics as solvent exposures, industrial and occupational hygiene and industrial ventilation design. I have testified on formaldehyde exposures in houses, hydrochloride exposures to fire fighters, tobacco exposure assessment and solvent vapor exposures in workplaces.