Abstract: | A model to predict the atmospheric dry deposition velocities of particles has been developed that is similar to a model developed for the prediction of particle deposition velocities in vertical pipes. The model correlates the particle deposition velocity (Vd ) with Stokes settling velocity (V st), friction velocity (V*), dimensionless inertial deposition velocity (V + di ), and dimensionless Brownian diffusion deposition velocity (V + dd ). V + di |