Model and real pollutant dispersion: concentration studies by conventional analytics and by laser spectrometry

Abstract

The differential absorption LIDAR together with spot analyzers (infrared absorption and chemiluminescence method) was used for concentration measurements in an urban street canyon in Prague. Measurements in the real atmosphere were compared with measurements of concentration distribution inside a model. Experiments in a wind-tunnel-simulated atmosphere were carried out using laser photoacoustic spectrometry and the laser visualization method. A comparison of concentrations on the windward and leeward sides of the model and real street canyon was performed.