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MODELING CARBON MONOXIDE (CO) EXPOSURES WITHIN MICROENVIRONMENTS GIVEN PERSONAL EXPOSURE MONITORING DATA
Citation:
Irwin, J. AND W.B. Petersen. MODELING CARBON MONOXIDE (CO) EXPOSURES WITHIN MICROENVIRONMENTS GIVEN PERSONAL EXPOSURE MONITORING DATA. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/D-91/100 (NTIS PB91191130), 1991.
Description:
Data collected at ambient fixed sites may not adequately reflect personal CO exposures, as they most often miss exposures resulting from CO emissions from sources in the immediate physical surroundings of individuals, such as within automobiles. he SHAPE model was proposed to account for this missing component of exposure and provides the basis for the model to be discussed. he viewpoint of the model construct is to follow a person over a 24 or 48 hour time interval. In this study, activity pattern data obtained in the Denver, CO and Washington, D.C. re used to define the sequence of microenvironments and durations within each microenvironment. he focus of this study is development of the concentration values experienced by individuals over 1 hour and 8 hour time periods.
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MODELING CARBON MONOXIDE (CO) EXPOSURES WITHIN MICROENVIRONMENTS GIVEN PERSONAL EXPOSURE MONITORING DATA