Application report: The completely automated MARGA system for monitoring

Main document

Air quality is usually monitored using systems that collect gases and particles with a denuder and a filter. Sampling takes place over a prolonged time period of at least a day. This has the disadvantage that only the mean composition of the air during this time period can be determined; short-term changes in air quality go unnoticed. MARGA (Monitor for AeRosols & Gases in Ambient Air) is an air analysis system that, with its ingenious sampling system and two ion chromatographs, determines detailed gas and aerosol concentrations on an hourly basis completely autonomously.