Smoke dispersion

n. The process in which smoke mixes with clear air around it, spreading out and becoming less dense.

 

  • Discussion

 

As smoke travels through the atmosphere, natural mixing and turbulence cause it to mix with smoke-free air.  As this happens, the smoke spreads into a greater volume of air, but the density of the particulates and gasses in the smoky air decreases.  Smoke dispersion is greater when winds are strong and the atmosphere is unstable.