DEVELOPMENT AND UTILITY OF REACTIVITY SCALES FROM SMOG CHAMBER DATA

The reactivities of 19 hydrocarbons, known to be prominently present in automotive exhaust and ambient air, were measured in a smog chamber and were found to agree well with results from two other smog chambers. Reactivity scales were developed for hydrocarbons and aldehydes using the results of this work and a previous study. Application of the reactivity scales to automotive exhaust samples gave fair agreement between predicted and observed rate-of-NO2 formation values but poor correlation between predicted and observed ozone-yield values. This lack of correlation was attributed to inappropriateness of (a) the individual component reactivity data, (b) the reactivity classification scheme used, and (c) the linear summation method. In seeking to understand this problem and develop more appropriate reactivity scales, the data were examined from a reaction mechanism standpoint and further studies were suggested.

• Supplemental Notes:
  • Prepared in cooperation with Environmental Protection Agency, Ann Arbor, Mich.
• Corporate Authors:

  Bureau of Mines

  Bartlesville Energy Research Center
  Bartlesville, OK  United States 

  Environmental Protection Agency

  Dallas, TX  United States  75202

  Energy Research and Development Administration

  Bartlesville Energy Research Center
  Bartlesville, OK  United States 
• Authors:
  • Dimitriades, B
  • Sturm, GPJ
  • Wesson, T C
  • Sutterfield, F D
• Publication Date: 1975-3

Media Info

• Pagination: 24 p.

Subject/Index Terms

• TRT Terms: Air pollution; Aldehydes; Automobiles; Chemical reactivity; Exhaust gases; Hydrocarbons; Kinetics; Motor reactions; Nitric oxide; Nitrogen oxides; Photochemical reactions; Pressure vessels; Smog
• Old TRIS Terms: Air chambers; Reaction kinetics
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00091687
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: BuMines-RI-8023 Invstg Rpt
• Files: TRIS
• Created Date: Aug 13 1976 12:00AM