yān​wù

mist

烟雾 (煙霧) yān​wù
mist noun
a mixture of smoke, mist, or vapor in the air

A thin layer of mist hung over the lake in the early morning.

smog noun
hazy air pollution consisting of smoke or chemical fumes

The smoke emitted from the factory has severely polluted the surrounding air.

Frequency

Movie subtitles
7.78 per million appears in 3% of films
Written text
5.42 per million

Sources

Definitions
CC-CEDICT