2001 Progress Report: Characterization of Fine Particulate Matter

EPA Grant Number: R827355C004
Subproject: this is subproject number 004 , established and managed by the Center Director under grant R827355
(EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).

Center: Airborne PM - Northwest Research Center for Particulate Air Pollution and Health
Center Director: Koenig, Jane Q.
Title: Characterization of Fine Particulate Matter
Investigators: Covert, David S. , Jansen, Karen , Larson, Timothy V. , Schreuder, Astrid
Current Investigators: Covert, David S. , Haneuse, Sebastien , Koenig, Jane Q. , Larson, Timothy V. , Lumley, Thomas , Schreuder, Astrid
Institution: University of Washington , Washington State University
Current Institution: University of Washington
EPA Project Officer: Chung, Serena
Project Period: June 1, 1999 through May 31, 2004 (Extended to May 31, 2006)
Project Period Covered by this Report: June 1, 2001 through May 31, 2002
Project Amount: Refer to main center abstract for funding details.
RFA: Airborne Particulate Matter (PM) Centers (1999) RFA Text |  Recipients Lists
Research Category: Air Quality and Air Toxics , Particulate Matter , Air


The objectives of this research project are to: (1) define the number and mass size distribution of aerosols for the Seattle, WA, area over the size range from 20 nm to 10 µm diameter at a central site and secondary sites; and (2) determine the hygroscopic properties of the ultrafine and fine aerosol in Seattle, WA.

Progress Summary:

The central site measurement has been underway since December 2000, and is proposed to continue through January 2003. The secondary sites measurement was limited to residences of panel subjects and included indoor and outdoor measurements. These data have served as the basis for positive matrix factorization analysis of source factors contributing to observed number and mass distribution. Determination of hygroscopic properties will be modeled based on a short series of measurements of Seattle aerosol.

Future Activities:

Data analysis is ongoing, and this includes calculating hourly and daily average number and size values to be entered into Data Core spreadsheets. One goal of Year 4 of the project is to conduct an analysis of associations between daily aerosol number and size values and daily visits to emergency departments for asthma.

Journal Articles:

No journal articles submitted with this report: View all 5 publications for this subproject

Supplemental Keywords:

ambient particles, fine particles, combustion, health, exposure, biostatistics, susceptibility., RFA, Scientific Discipline, Air, Geographic Area, Ecosystem Protection/Environmental Exposure & Risk, particulate matter, Environmental Chemistry, Health Risk Assessment, State, Monitoring/Modeling, Biochemistry, indoor air, Atmospheric Sciences, ambient aerosol, environmental monitoring, fate and transport, particle size, particulates, atmospheric dispersion models, atmospheric measurements, hygroscopic properties, environmental measurement, ambient air, air pollution, Washington (WA), particulate matter mass, size distribution monitoring, indoor air quality, ecological models, transport modeling, aerosol analyzers, aerosols, air quality, dosimetry

Progress and Final Reports:

Original Abstract
  • 1999 Progress Report
  • 2000 Progress Report
  • 2002
  • 2003 Progress Report
  • 2004
  • Final Report

  • Main Center Abstract and Reports:

    R827355    Airborne PM - Northwest Research Center for Particulate Air Pollution and Health

    Subprojects under this Center: (EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
    R827355C001 Epidemiologic Study of Particulate Matter and Cardiopulmonary Mortality
    R827355C002 Health Effects
    R827355C003 Personal PM Exposure Assessment
    R827355C004 Characterization of Fine Particulate Matter
    R827355C005 Mechanisms of Toxicity of Particulate Matter Using Transgenic Mouse Strains
    R827355C006 Toxicology Project -- Controlled Exposure Facility
    R827355C007 Health Effects Research Core
    R827355C008 Exposure Core
    R827355C009 Statistics and Data Core
    R827355C010 Biomarker Core
    R827355C011 Oxidation Stress Makers