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AIR RESEARCH IN THE NATIONAL EXPOSURE RESEARCH LABORATORY
Citation:
VETTE, A. F. AIR RESEARCH IN THE NATIONAL EXPOSURE RESEARCH LABORATORY. Presented at Air Toxics Risk Assessment Workshop, Atlanta, GA, December 08, 2005.
Impact/Purpose:
Six objectives have been defined for this study.
(1) To determine the associations between concentrations measured at central site monitors and outdoor residential, indoor residential and personal exposures for selected air toxics, PM constituents, and PM from specific sources.
(2) To describe the physical and chemical factors that affect the relationship between central site monitors and outdoor residential and indoor residential concentrations, including those that affect ambient source impacts.
(3) To identify the human activity factors that influence personal exposures to selected PM constituents and air toxics.
(4) To improve and evaluate models used to characterize and estimate residential concentrations of and human exposures to selected air toxics, PM constituents, and PM from specific sources.
(5) To investigate and apply source apportionment models to evaluate the relationships for PM from specific sources and to determine the contribution of specific ambient sources to residential concentrations and personal exposures to PM constituents and air toxics.
(6) To determine the associations between ambient concentrations of criteria gases (O3, NO2, and SO2) and personal exposures for these gases as well as personal exposures to air toxics, PM constituents, and PM from specific sources.
Description:
This presentation provides a summary of the FY06 air research program in HEASD in the context of the overall program in NERL and ORD. Included in the presentation is an overview and initial results from the Detroit Exposure and Aerosol Research Study. This presentation is to inform risk assesors (OAQPS, EPA Regions, State and Locals) of the research in HEASD focused on air toxics.