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Intra- and Inter-Individual Variability in Location Data for Two U.S. Health-Compromised Elderly Cohorts
Citation:
Frazier, E. L., T. R. MCCURDY, R. W. WILLIAMS, W. S. LINN, AND B. J. GEORGE. Intra- and Inter-Individual Variability in Location Data for Two U.S. Health-Compromised Elderly Cohorts. Journal of Exposure Science and Environmental Epidemiology . Nature Publishing Group, London, Uk, 19(6):580-592, (2009).
Impact/Purpose:
The National Exposure Research Laboratory’s (NERL) Human Exposure and Atmospheric Sciences Division (HEASD) conducts research in support of EPA’s mission to protect human health and the environment. HEASD’s research program supports Goal 1 (Clean Air) and Goal 4 (Healthy People) of EPA’s strategic plan. More specifically, our division conducts research to characterize the movement of pollutants from the source to contact with humans. Our multidisciplinary research program produces Methods, Measurements, and Models to identify relationships between and characterize processes that link source emissions, environmental concentrations, human exposures, and target-tissue dose. The impact of these tools are improved regulatory programs and policies for EPA.
Description:
This study provides descriptive statistical data on daily time spent in three locations of exposure assessment interest for two panel studies of health-compromised elderly individuals > 65 y old having multi-days of human activity data. The panel studies include individuals living in Los Angeles CA and Baltimore MD in various housing types.
