CHEMICAL AND PHYSICAL CHARACTERIZATION OF AUTOMOTIVE EXHAUST PARTICULATE MATTER IN THE ATMOSPHERE (YEAR ENDING JUNE 30, 1973)

The purpose of the program is to determine the physical and chemical characteristics of exhaust particulate matter from internal combustion engines as a function of sampling procedure, engine operating conditions (including emission control systems), fuel composition, and residence time in the atmosphere. Emphasis is placed on predicting the fate of exhaust particulate matter in the atmosphere. The scope of the project work covers the generation of automobile particulate matter with specially chosen, measured engines. A major experimental study has been necessary to develop test procedures which give as true as possible values of the particulate emissions. The gaseous measurements enabled a detailed assessment of vehicle operation to be made. Electron microscope studies of the exhaust particles suggest four possible mechanisms of particle growth; agglomeration, condensation, crystal growth, deposition and ablation of exhaust system deposits.

• Supplemental Notes:
  • See also PB-227 413. Prepared in cooperation with Coordinating Research Council, Inc., New York. Environmental Protection Series.
• Corporate Authors:

  Battelle Columbus Laboratories

  505 King Avenue
  Columbus, OH  United States  43201

  Coordinating Research Council, Incorporated

  30 Rockefeller Plaza
  New York, NY  United States  10020

  Environmental Protection Agency

  National Environmental Research Center
  Research Triangle Pk, NC  United States  27709
• Authors:
  • Foster, J F
  • Trayser, D A
  • Melton, C W
  • MITCHELL, R I
• Publication Date: 1973-6

Media Info

• Pagination: 92 p.

Subject/Index Terms

• TRT Terms: Aerosols; Air pollution; Atmospheric circulation; Automobiles; Carbon monoxide; Chemical analysis; Chemical properties; Chemicals; Concentration (Chemistry); Deposits (Geology); Electron microscopy; Exhaust gases; Footbridges; Fuels; Grain size (Geology); Hydrocarbons; Internal combustion engines; Mass; Measuring instruments; Particles; Particulates; Physical properties; Testing equipment
• Uncontrolled Terms: Laboratory equipment
• Old TRIS Terms: Deposits
• Subject Areas: Energy; Geotechnology; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00145885
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: EPA/65012-73/002, Series
• Contract Numbers: EPA-68-02-0279
• Files: TRIS
• Created Date: Jan 16 2002 12:00AM