Atmospheric dispersion modeling

As a dispersion calculation is called calculation method to calculate the dispersion of air pollutants in the lower troposphere. In Germany it is required by the Clean Air Act by law.

The most significant factors affecting the transport of contaminants make wind and stratification of the Earth's atmosphere dar. The latter, however, is to measure only at great expense and is therefore estimated in practice, day and year, as well as cloud cover and wind speed. The result is one of the six stability classes " very stable", "stable ", " neutrally stable ", " neutral - unstable ", " unstable " or "very unstable ". On this basis, the further calculation is performed under quasi- stationary conditions. The result is a functional relationship between the concentration of the pollutant and the distance to the issuer. This labile ratios result in higher loads nearby and stable conditions, a slowly increasing with the removal of stress, but also has a much more spacious distribution.

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