MODELLING ODOUR DISPERSION FROM LIVESTOCK: SEPARATION DISTANCE DEPENDING ON ODOURIMPACT CRITERIA

摘要

Odour is one of the major nuisances in the environment mainly caused by livestock units and the industry (Schauberger et al., 2000c). To overcome the odour nuisance as far as possible, a separation distance between the odour source and residential areas is used to reduce the odour annoyance to an acceptable level. Apart from empirical guide lines (e.g. Piringer and Schauberger, 1999), the separation distance can also be calculated by dispersion models. Making use of the latter implies knowledge of the odour release (Martinec et al., 1998; Schauberger et al., 1999), a dispersion model, the calculation of the instantaneous concentration (Schauberger et al., 2000b), and the validation of the instantaneous odour concentration taking into account the FIDO factors (frequency, intensity, duration, and offensiveness) of odour sensation and the reasonableness.