Deposition of particles liberated in gusts of wind.

Abstract

We calculated the collection eficiency of vertical, sticky cylinders for spores released continuously and steadily, and for spores released intermittently when the wind exceeded a certain speed. We tested these calculations in the field by trapping on cylinders of different diameters Lycopodium spores released steadily from an artificial source, spores of Erysiphe graminis blown from a barley crop and Lycopodium spores blown from a flat plate or a short crop. The collection efficiency E of vertical sticky cylinders depends on wind speed and the average efficiency for an experiment was obtained by averaging E over all speeds during spore release. -from Authors