AN ANALYSIS OF PARTICULATE MATTER DISPERSION NEAR URBAN ROADWAYS. FINAL TECHNICAL REPORT

Particulate matter and its dispersion near urban roadways has become an issue of increasing concern due to the possible health risks associated with the human inhalation of small particulates. Despite the potential health risk, little is known about the concentration of particulates near urban roadways or the particulates emission rates of various vehicles. This research focuses on particulate matter smaller than 2.5 micrometers (microns), and typically denoted PM sub 2.5, due to the high potential health risks of such small particles. Data were collected along roadways on the University of Washington. The results of the data collection and subsequent statistical analysis revealed, as expected, that urban buses were far and away the major source of particulate emissions and that buses with low exhaust pipes are more of a threat to pedestrian traffic. More interestingly, our findings suggest that procedure AP-42 for calculating particulate matter near urban roadways is grossly inaccurate, producing values that are one to two orders of magnitude higher than actually observed PM sub 2.5 values.

• Record URL:
  http://www.wsdot.wa.gov/research/reports/fullreports/262.1.pdf
• 
• Corporate Authors:

  University of Washington, Seattle

  Seattle, WA  United States  98195

  Washington State Department of Transportation

  Transportation Building, 310 Maple Park Avenue SE, P.O. Box 47300
  Olympia, WA  United States  98504-7300

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Balogh, M
  • MANNERING, F L
• Publication Date: 1992-7

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 94 p.

Subject/Index Terms

• TRT Terms: Buses; Data collection; Exhaust gases; Field studies; Hazards; Health; Particulates; Pedestrians; Risk assessment; Statistical analysis; Urban highways
• Uncontrolled Terms: Field data
• Subject Areas: Data and Information Technology; Highways; Pedestrians and Bicyclists; Public Transportation; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00624998
• Record Type: Publication
• Report/Paper Numbers: WA-RD 262.1
• Contract Numbers: GC 8719, Task 35
• Files: TRIS, USDOT, STATEDOT
• Created Date: Sep 25 1993 12:00AM