The odor concentration is measured manually at the sources of the site. That measured value is then used as a fixed input to the OdoScan™ software, which uses the real-time weather data from the met tower to model the atmospheric dispersion and display the site’s odor plume.

OdoScan™ thus tracks the direction of the emitted odor based on fixed source concentration data (in odor units per cubic meter) but real-time weather. The standards used for the measurements are ASTM E-679-91 and European Standard EN 13725.