Author(s)

H. Roetzer & J. Riesing

Abstract

Many regional and local monitoring networks exist for controlling of air-quality. However the measured concentrations of pollutants are usually the sum of the contributions of a large number of sources of air pollution and therefore yield no information about individual plumes. The SF^-tracer method is used to investigate the dispersion of single plumes and to assess their contributions to overall air pollution without interference by other emitters. The exhaust gases are labelled by adding continuously minute quantities of the tracer gas. The tracer gas SF6 is a chemically stable, non toxic gas that can be detected to a very high sensitivity. Measurements of the tracer concentration in air samples indicate the dilution of the plume at the sampling points. A description

Keywords