What does floating dust weather mean?

Floating dust is a weather phenomenon that a large number of tiny dust floats in the air and turns the sky into khaki. Most of these floating dust are caused by sandstorms and sand blowing.

This weather is very harmful to people's lungs. According to the previous explanation of the meteorological department, the difference between sandstorm and floating dust or sand blowing lies in visibility, and sandstorm is considered when the visibility is less than 1 km.

According to the previous explanation of the meteorological department, the difference between sandstorm and floating dust or sand blowing lies in visibility, and sandstorm is considered when the visibility is less than 1 km.

In meteorology, floating dust is called the weakest floating dust weather. Floating dust is formed by fine particles such as dust and sand floating in the air after sandstorm or sand blowing in remote or local areas, commonly known as "falling yellow sand". When it appears, the distant objects are khaki, the sun is pale or yellowish, the visibility is less than 10 km, and more than 1 km, and there is basically no obvious wind.

Reasons for formation:

The floating dust in the dust refers to the suspended particles in the air whose diameter is less than 10 micron and can float in the air for a long time. It is the most common pollutant in the air, and we usually call it particulate pollutant.

Most of these particulate pollutants are caused by human activities, such as black smoke, white smoke, red smoke, yellow smoke, etc., floating over some industrial cities. Due to the endless combustion of coal and fossil fuels, a large number of particles are released into the air, which seriously pollutes the atmosphere.

About 500 million tons of particulate matter are discharged into the air every year in the world. These floating dust pollutants mainly come from fuel combustion and industrial waste gas. It is estimated that for every 1 ton cement produced, 6.5 kilograms of floating dust will be discharged.

Refer to the above content: Baidu Encyclopedia-Floating Dust