The deposition.

Factors influencing dry deposition are the level of atmospheric turbulence, chemical composition of the species and the nature of the surface. The atmospheric turbulence plays an extreme important role in particular nearest the ground as it determines the rate at which a species is delivered down to the surface. The chemical composition and reactivity is for gases governing the reaction between gas and intercepting surface. Finally the nature and structure of the surface is involved by determining the rate of susceptibility from the atmosphere.