PEROXY-RADICALS IN THE ROSE EXPERIMENT - MEASUREMENT AND THEORY

The concentrations of the HO2-RO2 species measured during July 11, 1990. in the ROSE (Rural Oxidants in the Southern Environment) study m Alabama are compared to those expected in theory from calculations based upon detailed hourly measurements of a variety of trace gases including the hydrocarbons, NO. NO2, carbonyl -pounds. CO, PAN (peroxyacetylnitrate) and calculated j(O3) values. The measurements are also compared with the [HO2] + [RO2] as estimated from deviations from the NO2+ hv (+02) reversible NO + 03 photostationary state. Within the error of the measurements all of the data appear to be in reasonable accord.