Odour in the surroundings of Copenhagen Airport

A method for determining odour from airports has been developed. It is based on sampling of emission from a typical engine run at different modes followed by olfactometric determination of odour by a panel of test persons. The determinations are transformed to odour emissions and extended to other engines by table values for hydrocarbon emissions. With activity accounts from the airport an emission inventory with a resolution of 50 m is set up. Finally the concentrations are calculated with dispersion modelling to give 99% percentiles of 1-h average values. These can approximately be transformed to 1-min values. The method is used at Copenhagen Airport in Kastrup.