You are here:
OXIDANT-PRECURSOR RELATIONSHIPS UNDER POLLUTANT TRANSPORT CONDITIONS. OUTDOOR SMOG CHAMBER STUDY. VOLUME II. APPENDIXES
Citation:
Sickles, J.E., L. Ripperton, W. Eaton, AND R. Wright. OXIDANT-PRECURSOR RELATIONSHIPS UNDER POLLUTANT TRANSPORT CONDITIONS. OUTDOOR SMOG CHAMBER STUDY. VOLUME II. APPENDIXES. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/3-79/078B.
Description:
Multiple-day experiments were conducted in outdoor smog chambers to investigate the influence of simulated transport on ozone generation by various combinations of a surrogate urban hydrocarbon mixture and nitrogen oxides. The simulation of transport was accomplished by progressively diluting the contents of the chambers with purified air. First day ozone maximum concentrations were reduced under dilution conditions and were sensitive to both dilution rate and time at which dilution was initiated. Second and third-day ozone maxima were reduced at increasing dilution rates, but the reduction was less than proportional to the extent of dilution. The ozone-generative potential of an aged photochemical system generally exceeded 0.08 ppm. Additional experiments were conducted to examine the ozone-generative potential of low reactivity hydrocarbons, to provide data for testing and validation of a computer-based photochemical simulation model, and to compare the behavior of two types of outdoor smog chambers. Volume 2 contains all the smog chamber analytical data for hydrocarbons, NO, O3, CO, CH2O, and condensation nuclei, as well as dilution and meteorological data.