Theoretical, numerical, and physical techniques for characterizing power plant plumes. Topical report

This report assesses present understanding of the chemistry and physics of plumes from fossil fuel power plants. Recent airborne measurement programs suggest that ozone may be found in power plant plumes in concentrations exceeding background levels. Although the vast majority of the studies reviewed indicate no ozone buildup in plumes. Thus, the question is raised whether the observed ozone build-up is due to interferences from urban plumes, measurement difficulties, or random fluctuations in atmospheric ozone concentrations. The Electric Power Research Institute (EPRI) is presently sponsoring field measurement programs designed to determine whether ozone is formed in plumes, and mathematical modeling studies that will point out conditions favorable to ozone production. (GRA)