What is the symbol of smog?

Due to weather phenomena such as haze, light fog, sandstorm, sand blowing, floating dust and smoke, the effective horizontal visibility is less than 10KM due to a large number of extremely fine dust particles or smoke particles floating in the air. Sometimes it is difficult for meteorological professionals to tell the difference. It is necessary to comprehensively analyze and judge the weather background, sky conditions, air humidity, color and smell, satellite monitoring and other factors to draw a correct conclusion. The weather phenomena of fog and haze can sometimes be converted to each other.

Extended data:

Matters needing attention in foggy days:

Wear a mask: it is best to wear a mask when going out, which can effectively prevent dust particles from entering the human body.

Try not to go out and don't wear a mask: foggy days, light wind, poor airflow, and many harmful bacteria and dust particles in the air. From the health point of view, it is best to do less outdoor activities.

Wash your hands frequently: wash your face and hands when going out. It is best to wash your face with warm water, which can remove the smog particles attached to your skin.

People's Network-Do you want to open the window for ventilation in foggy days?