Citation:

WILLIAMS, R. W. EXPOSURE ASSESSMENT OF OLDER ADULTS TO PARTICULATE MATTER. Presented at Mickey Leland National Urban Air Toxics Research Center Symposium, Arlington, VA, June 14 - 15, 2005.

Impact/Purpose:

The primary study objectives are:

1.To quantify personal exposures and indoor air concentrations for PM/gases for potentially sensitive individuals (cross sectional, inter- and intrapersonal).

2.To describe (magnitude and variability) the relationships between personal exposure, and indoor, outdoor and ambient air concentrations for PM/gases for different sensitive cohorts. These cohorts represent subjects of opportunity and relationships established will not be used to extrapolate to the general population.

3.To examine the inter- and intrapersonal variability in the relationship between personal exposures, and indoor, outdoor, and ambient air concentrations for PM/gases for sensitive individuals.

4.To identify and model the factors that contribute to the inter- and intrapersonal variability in the relationships between personal exposures and indoor, outdoor, and ambient air concentrations for PM/gases.

5.To determine the contribution of ambient concentrations to indoor air/personal exposures for PM/gases.

6.To examine the effects of air shed (location, season), population demographics, and residential setting (apartment vs stand-alone homes) on the relationship between personal exposure and indoor, outdoor, and ambient air concentrations for PM/gases.

Description:

The factors that influence the amount of particulate matter that potentially susceptible elderly Americans are exposed to is an issue of concern. This presentation and abstract investigates these factors using data obtained from three longitudinal particulate matter panel studies performed by the US EPA. Findings indicate that factors such as housing and personal activities can greatly influence one's total personal exposure and more importantly one's exposure to particulate matter of ambient origin.

Record Details: