About the Author SHIRLEY A. NESS currently consults and resides in Chicago. Previously she was a senior industrial hygienist at Amoco Corporation, Amoco Oil Company, in Chicago. She was responsible for providing industrial hygiene services to a major oil refinery, reviewed the health and safety performance of hazardous waste remediation contractors, and participated in environmental monitoring programs. Formerly she was Director of Environmental Health and Technical Information Services at Carnow, Conibear & Associates, Ltds. in Chicago. She has also worked as the corporate industrial hygienist for the Boise Cascade Corporation in Boise, Idaho, and in workers’ compensation insurance. Ms. Ness received her B.A. in biophysics from the University of California, Berkeley, and received her M.S. in environmental toxicology from the University of San Francisco. She is a Certified Industrial Hygienist under the American Board of Industrial Hygiene.