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Development and utility of reactivity scales from smog chamber data.

Authors
Dimitriades-B; Sturm-GP Jr.; Wesson-TC; Sutterfield-FD
Source
Bartlesville, OK: U.S. Department of the Interior, Bureau of Mines, RI-8023, 1975 Jan; :1-19
Link
NIOSHTIC No.
10007597
Abstract
The Bureau of Mines measured the reactivities of 29 hydrocarbons known to be prominently present in automotive exhaust and ambient air in a smog chamber. Results agreed well with those obtained using two other smog chambers. Reactivity scales were developed for hydrocarbons and aldehydes using the results of this work and those of a previous study. Application of the reactivity scales to automotive exhaust samples gave fair agreement between predicted and observed rate-of-NO2-formation values; however, predicted and observed ozone yields were neither in agreement nor did they correlate well. This lack of correlation for ozone yield was attributed to the inappropriateness of (1) the individual component reactivity data, (2) the reactivity classification scheme used, and (3) the linear summation method. In seeking to understand this problem and to develop more appropriate reactivity scales, the data were examined from a reaction mechanism standpoint, and further studies were suggested. Work done under an agreement with the office of air programs, Environmental Protection Agency.
Publication Date
19750101
Document Type
IH; Report of Investigations
Fiscal Year
1975
NTIS Accession No.
PB-241248
NTIS Price
A03
Identifying No.
RI-8023
NIOSH Division
BERC
Source Name
Bartlesville, OK: U.S. Department of the Interior, Bureau of Mines, RI-8023
State
OK
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