smogless


smog

S0498400 (smŏg, smôg)n.1. Fog that has become mixed and polluted with smoke.2. A form of air pollution produced by the photochemical reaction of sunlight with hydrocarbons and nitrogen oxides that have been released into the atmosphere, especially by automotive emissions.
[sm(oke) + (f)og.]
smog′gy adj.smog′less adj.

smogless

(ˈsmɒɡləs) adj (Physical Geography) free of smog; without smog