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The odour emission from the source will result in a certain odour concentration at the surrounding buildings. The concentration of the odour at living height is called the odour immision concentration.

The odourimmission concentration is usually detrmined using dispersion modeling based on the odour emission from the source and the charachteristics of the source (e.g. emission flow rate, location, temperature of the emitted air...)

Odour immision concentrations are expressed as percentile values (98 percentile for 1 se/m³) and are a measure for the impact of an odour source on its environment.

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