A HUMAN EXPOSURE ASSESSMENT STUDY USING PERSONAL MONITORING OF CARBON-MONOXIDE - DIRECT AND INDIRECT METHODS

This paper introduces two approaches to determine exposure and describes experimental data obtained during application of these approaches to a pollutant, carbon monoxide. One is the direct approach in which a representative sample of the population is selected and sampling is conducted using a personal exposure monitor (PEM). The indirect approach is the combination of collected field data from activity patterns and measured concentration levels within microenvironments. The conclusions combine statistical survey design techniques and PEM concentration data to produce an exposure profile for a representative population.