Index >> Environmental Microbiology >> Microbes andAtmosphere >> Deposition and Adhesion

Deposition and Adhesion
Deposition is in part governed by the mass of the particle. Larger particles often have the momentum to deviate from the streamlines, impact the surrounding surfaces and be deposited, Particle bounce also increases with increasing mass. Additional forces include gravitational settling, convection (due to temperature variations), diffusion and eddy diffusion.

Adhesive forces are dominated by the molecular structure and organisation near the contact surfaces. Two types of forces are primarily responsible for the at-a-distance interactions (within very short distances) that occur between aerosol particles and surfaces.