The guideline contains theoretical determination methods and values, which have been derived from measurements, for the deposition velocity and the washout rate of aerosols and trace gases. These parameters, briefly termed deposition parameters in the following, are required for calculating the dry and wet deposition flux to the ground or to near-ground boundary surfaces by dispersion models, such as Gaussian plume models (VDI 3782 Part 1), Gaussian puff models (VDI 3945 Part 1) and particle models (VDI 3945 Part 3). They may also be used for estimating, on the basis of known trace substance concentrations in the air, the flux to the ground by dry and wet deposition.Theoretical approaches are presented for the deposition parameters. An analytical calculation rule is described for aerosols, and numerical values for different surface conditions are given for selected trace gases. The information is based on a literature study; in Annex D, the evaluated literature and the values quoted therein are listed.
VDI 3782 Blatt 5-2006由德国机械工程师协会 DE-VDI 发布于 2006-04。
VDI 3782 Blatt 5-2006在国际标准分类中归属于: 07.060 地质学、气象学、水文学。
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