DIN EN 16841-2:2017-03

This European Standard describes the plume method for determining the extent of detectable and recognisable odour from a specific source using direct observation in the field by human panel members under specific meteorological conditions. With the plume method the presence or absence (YES/NO) of recognisable odours from a specific odour emission source, under a specified emission situation and meteorological conditions (specific wind direction, wind speed and boundary layer turbulence) is determined. The unit of measurement is the presence or absence of recognisable odours at a particular downwind location. The extent of the plume is assessed as the transition of absence to presence of recognisable odour. The primary application of this standard ist to provide a common basis for the determination of the plume extent in the member states of the European Union. The results are typically used to determine a plausible extent of potential exposure to recognisable odours, or to estimate the total emission rate using reverse dispersion modelling. The field of application of this European Standard includes: - the determination of the extent of the recognisable odour plume downwind from a source, under specific meteorological conditions (e. g. wind direction, wind speed, turbulence...) This European Standard does not include: - the measurement of the frequency of occurrence of odour hours as a representative value for the average meteorology of a location - the measurement of intensity of ambient odours - the measurement of hedonic tone of ambient odours - the calculation of estimated source emission rate from the plume extent using reverse dispersion modelling

13.040.20