Modeling Human Exposure to Air Pollution
This chapter is an introduction to the simulation of human exposure to air pollution. It includes a review of basic inhalation exposure models, in which air concentrations are matched with individual human activity patterns. Since people spend most of their time inside buildings, and the modeling of indoor pollutant concentrations is simpler than for outdoor pollutants, the emphasis is on indoor exposures. Separate sections are devoted to residential exposure to secondhand tobacco smoke and a recent representative survey of U.S. time-location patterns. Material is included on the advantages associated with the modeling of exposure as part of exposure assessment studies with respect to public health objectives. The final section discusses possible future directions in exposure modeling, including general approaches to model evaluation.