Keywords: airport, air quality, photochemistry
The impact of an airport on regional air quality at Munich, Germany
In May 1992, the new airport in Munich, Germany, became fully operational. In 1991, two research programmes within the Bavarian Climate Research Programme (BayFORKLIM) in Germany/Bavaria were established to measure, calculate and model the assumed change of the air quality in the vicinity of the new airport. By analysing the synoptic and local weather situation, measured and modelled air pollution distribution modifications in the air quality can be recognised. The results show no effect on the ozone but some effect in the NOx concentrations. The sum of NOx (NO + NO2) concentrations shifts towards lower NO and higher NO2) concentrations. The morning peak of the NO maximum occurs about one hour later than before the operation. During the weekend a significant increase of NOx is seen within a range of 6 to 7 ppbv. The modelling studies indicate that emissions from motor vehicles are the predominant source of NOx, aircraft emissions are of lesser importance.