Tobacco Documents Online

system of the building . and a mi.nimum--of-•overall--air movement-- is required. From the point of view of basia industrial. hygiene principles, this approach is sound. Poor design or direct exhaust into the return system, however, can result in more problems than it solves, such as over pressurized ceiling voids, imbalancing of the main air handl:Lng system, and short-circuiting of the exhaust outlet into outdoor air intakes. A fundamental problem is the touted "advantage" of minimum air movement throughout the building once exhaust systems for specific air pollutants are :installed. This flies in the face of arguments for adequate overall ventilation in buildings. A less obvious but winning a::gument for proper ventilation rates is a comparison of bui..lding running costs- versus absenteeism costs. Absenteeism will far outrun the costs of maintaining a building's HVAC s.ystem responsibly with regard to adequate ventilation, good filtration and high standards of hygiene. Conclusions The experience of HBI in assessing indoor air quality as a whole demonstrates the value of adequate ventilation, at least to accepted building standards, along with proper HVAC maintenance. Attention-to these points is crucial to, and effective in, reducing ETS exposure, along with exposure to a whole series of other irritating indoor pollutants.

BIBLIOGRAPHY + Eatough, D.J., C.L. Benner, J.M. Bayona, F.M. Caka, G. Richards, J.D. Lamb, E.A. Lewis and L.D. Hansen (1989a). The chemical composition of environmental tobacco smoke. I. Gas phase acids and bases. Environ. Sci. Technol. 23: 679-687. Eatough, D.J., C.L. Benner, H. Tang, V. :Landon, G. Richards, F.M. Caka, J. Crawford, E.A. Lewis., L.D. Hansen and N.L. Eatough (1989b). The chemical composition of environmental tobacco smoke. III. Identification of conservative tracers of environmenta1 tobacco smoke. Environ. Inter. 18: 19-28. Eatough, D.J., L.D. Hansen and E.A. Lewis (1990) The Chemical characterization of environmental tobacco smoke. In: Environment Tobacco Smoke: Proceedings of the International Symposium at McGill University, Lexington Books, 3-39. Eatough, D.J., Methods for Assessing Exposure to Environmental Tobacco Smoke. In: Trans. Combustion Processes and the Quality of the Indoor Environment. Int. Spec. Conf., A&WMA TR-15, Pittsburgh, PA (1989). Kirk, P.W.W., Hunter, M., Back S.O. et al; Environmental toba,cco smoke in indoor air. In: Indoor & Ambient Air Quality, Selper, London, 1989. Kurtz, D.B., Savoca, M.R. A facility for the sensory Evaluation of Environmental Tobacco Smoke. In: Indoor and Ambient Air Quality, Selper London, 1988. Robertson, G. (1990) Indoor pollution sources. Sources, effects and mitigation strategies. In: Environment Tobacco Smoke: Proceedings of the International Symposium at McGill University, Lexington Books, 333-356. Sterling, T.D., Mueller, B. (1988). Concentration of Nicotine, RSP, CO and CO2 in non-smoking areas of offices ventilated by air recirculated from smoking designated areas. J. American Industrial Hygiene Assoc. 49: (9)423-426.