Trace Gas Analysis of Power Plant Plumes Via Aircraft Measurement: O3, NOx, and SO2 Chemistry

The gaseouis plume from an isolated 1000-megawatt power plant was systematically examined from a single engine aircraft to determine the extent to which NO(x) and SO(2), chemistry occurs as a function of distance. The concentrations of ambient ozone, water vapor, and hydroxyl free radicals are indicated to be of major importance in defining the chemistry of power plant plumes during summertime conditions.