POLYNUCLEAR AROMATIC HYDROCARBONS IN VEHICLE EXHAUST GAS

Evidence is presented to determine the relationship between fuel composition and polynuclear aromatic hydrocarbons (PNA) formation. Emission rates of PNA were determined for gasoline engines in simulated city driving; in order to confirm the results, experiments were carried out with a vertical flow reactor. The PNA emission was found to depend on the different aromatic hydrocarbons present in the fuel. The addition of tetraethyl lead (TEL) to gasoline had little effect on PNA emission. The carcinogenic hydrocarbons like 1.2 benzanthracene and benz(a)pyrene, particularly associated with the more carbonaceous part of the soot, are preferentially deposited on the combustion chamber walls, as pointed out from vertical reactor experiments.

• Corporate Authors:

  Society of Automotive Engineers

  485 Lexington Avenue
  New York, NY  United States  10017
• Authors:
  • Zanghini, N
  • Mangolini, S
  • Arteconi, M
  • Sezzi, F
• Publication Date: 1973-9

Media Info

• Pagination: 10 p.

Subject/Index Terms

• TRT Terms: Aromatic hydrocarbons; Driving simulators; Exhaust gases; Flow; Fuel elements; Gasoline engines; Hydrocarbons; Pollutants
• Old TRIS Terms: Emission rates; Vertical flow
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00081026
• Record Type: Publication
• Report/Paper Numbers: SAE #730836 Paper
• Files: TRIS
• Created Date: Mar 26 1975 12:00AM