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Related Experiment Videos

Source apportionment with site specific source profiles.

D M Glover1, P K Hopke, S J Vermette

  • 1University of Illinois, Department of Civil Engineering, Urbana, Illinois.

Journal of the Air & Waste Management Association
|March 1, 1991
PubMed
Summary
This summary is machine-generated.

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This study identified PM10 sources in Granite City, Illinois. Local industries contributed to the coarse fraction, while regional sources impacted the fine fraction, with updated emission profiles noted.

Area of Science:

  • Environmental Science
  • Atmospheric Chemistry
  • Air Quality Monitoring

Background:

  • Granite City, Illinois, has a history of exceeding air quality standards for particulate matter (PM10).
  • Understanding the sources of PM10 is crucial for effective air pollution control strategies.

Purpose of the Study:

  • To identify and quantify the sources contributing to PM10 mass in Granite City.
  • To differentiate between fine and coarse particulate matter sources.
  • To assess the influence of local versus regional sources on air quality.

Main Methods:

  • Ambient aerosol samples were collected using a dichotomous sampler.
  • Samples were analyzed using X-ray fluorescence (XRF) and instrumental neutron activation analysis (INAA).
  • Receptor modeling, including factor analysis and chemical mass balance (CMB) analysis, was employed.

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  • CMB analysis utilized both literature-based and locally derived source profiles.

    • Main Results:

    • Regional sources were identified as the primary contributors to the fine PM10 fraction.
    • Local industrial activities were found to be the main sources of the coarse PM10 fraction.
    • Emission profiles of identified sources have evolved since previous studies.
    • The use of locally generated source profiles significantly enhanced the accuracy of the CMB analysis.

    Conclusions:

    • The study successfully apportioned PM10 mass to specific sources in Granite City.
    • Findings highlight the distinct contributions of regional and local sources to different particle size fractions.
    • The importance of using site-specific source profiles for accurate receptor modeling was demonstrated.