How Is Dry Deposition Made

Dry deposition is the removal of pollutants by sedimentation under gravity, diffusion processes (i.e., Brownian motion), or by turbulent transfer resulting in impaction and interception (Beckett et al., 1998).

What is an example of dry deposition?

Dry Deposition. Gravitational sedimentation of particles during periods without precipitation. These particles include: aerosols, sea salts, particulate material, and adsorbed/reacted gases captured by vegetation. … The dominant forms of gaseous nitrogen were NO2 gas, nitric acid (HNO3) vapor, and trace amounts of NH3.

How is wet deposition formed?

Wet deposition is the process whereby atmospheric gases mix with suspended water in the atmosphere and are then washed out through rain, snow or fog. … High concentrations of atmospheric pollutants can result in atmospheric deposition of these compounds exceeding the critical level.