Measurement of odour with focus on sampling techniques.

The treatment of waste and many manufacturing processes cause odour emissions. In order to prevent odours, the residents and businesses in the neighbourhood of such plants complain about odour, and it becomes necessary to reduce the emissions. To achieve that, the emissions have to be investigated and evaluated in a representative and reproducible manner. The DIN EN 13725 (2003) [DIN EN 13725. 2003. Luftbeschaffenheit--Bestimmung der Geruchsstoffkonzentration mit dynamischer Olfaktometrie--Air quality--Determination of odour concentration by dynamic olfactometry, Deutsche Fassung EN 13725:2003. Beuth Verlag, Berlin (DE)] provides a European standard for the measurement of odour. Nevertheless, the subject of sampling is not standardised; even though it has a substantial influence on the results of the measurements. In this paper, the odour measurement itself, as well as the different kinds of sampling methods (depending on the specific type of source), will be presented and discussed.