Where does the winter smog in Shandong come from?

Mainly from heavy industrial enterprises such as steelmaking and petrochemical.

1, Shandong has a temperate monsoon climate, and there are few southeast winds in winter, mostly northwest winds blowing from the land. When the weather is fine, there is less northwest wind, which is not conducive to the diffusion of particulate matter.

Shandong is located in the downwind of Hebei, and the smog in Hebei is very serious. Some particles diffused in Hebei will reach Shandong.

There are many heavy industries in Shandong, such as steelmaking and petrochemical enterprises, which are the main components of smog.