Smog, 霧霾

A person takes pictures in the smog at the square in front of a church in Harbin, Heilongjiang province, China, Nov. 10, 2015.
November 11, 2015
http://www.voanews.com/media/photogallery/november-11-2015-day-in-photos/3053633.html

Smog - Wikipedia, the free encyclopedia

 smoke and fog

霾（又稱灰霾，或霧霾，中國大陸稱為霾，香港地區稱為煙霞）