William M. Vaughan

William M. Vaughan, Ph.D. was an air pollution physicist who was President of the Institute for Environmental Solutions, Inc., in St. Louis, Missouri, a nonprofit organization that deals with solving environmental problems. Dr. Vaughn submitted an article, which he authored, entitled "Impact of 'Designated Smoking Area' Policy on Nicotine Vapor and Particle Concentrations in a Modern Office Building."

EPA Environmental Tobacco Smoke Risk Assessment Science Advisory Board member Katherine Hammond appears as a co-author. The article reports the results of a study conducted to measure enviornmental tobacco smoke (ETS, secondhand smoke) levels in a large St. Louis office building following the institution of a smoking policy restricting "smoking to designated areas of the 32nd floor snack bar and the eastern part of the cafeteria only." The authors report that "general employee exposure to nicotine vapor (as surrogate for all environmental tobacco smoke) was reduced by over 95 percent on most floors" following the institution of the restrictions, but was four times higher than than that on the 31st floor (which "share[d] an air handler" with the 32nd floor) and, in the "worst case", 1800 times higher than that in the cafeteria.

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