Wind erosion related dust emissions: Comparison of emission factors determined by ambient air quality measurements with two calculation methods

A publication by Bernd Hör (Müller-BBM GmbH, Berlin) and Oliver Stenz (Müller-BBM GmbH, Hamburg) in the specialist journal ”Hazardous Substances – Air Pollution Control“, issue 81 (2020), No. 6 on the comparison of emission factors for wind erosion related dust emissions determined by ambient air quality measurements with two different calculation methods.

Contents:

The guideline VDI 3790 part 3 (Kahnwald Formula) and the „Technische Grundlage zur Beurteilung diffuser Staubemissionen“ (TGDS) provide two different calculation methods for forecasting dust emissions caused by wind erosion. However, according to the respective description both methods entail a certain degree of uncertainty. In the year 2014, on behalf of Lausitz Energie Bergbau AG (LEAG), Müller-BBM GmbH and the Institute for Soil Landscape Research, Leibniz Center for Agricultural Landscape Research e.V. (ZALF) carried out extensive investigations on wind erosion, in particular on the emission potential of exposed surfaces (especially of opencast mines). As a result, surface-specific and wind speed dependent emission factors for dust emissions from wind erosion were determined and validated.

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