Emission inventories of airports are not well known generally because a lot of different emission sources exist. A database is required to characterise real-world emission source strengths as well as air quality and meteorological data at airports that will serve as an input and as validation data for modelling work. To develop a database of air quality and meteorological data a measurement campaign was carried out at the Athens International Airport (AIA). The campaign from 13 until 25 September 2007 was realised with the aid of existing monitoring equipment at the AIA as well as at the participant partners that was transferred to the AIA, allowing the sharing of knowledge and infrastructure. The concept of this measurement campaign will be presented. The first results of interpretation of measured data will be discussed such as aircraft emission indices during take-off, influence of aircraft emissions upon airport air quality, possibility of estimation of the airport emission source strengths and influence of airport emissions upon air quality in the surroundings. The future tasks of data use will be discussed with further investigation of aircraft plume processes, modelling of the representative daily course of air quality parameters and meso-scale air pollution studies. For the covering abstract see ITRD E141518.