What are the floating dust and sunny dust in the weather forecast?

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. In dusty weather, people's eyes, nose, throat, skin and other direct contact parts will be damaged to a certain extent, mainly manifested as runny nose, tears, cough, expectoration and other irritating symptoms and allergic reactions, which can seriously lead to skin inflammation and conjunctivitis. In dusty weather, it is necessary to minimize going out and close doors and windows at home in time, especially for patients with chronic bronchitis and the elderly and children with relatively weak resistance. Dust weather is an open source of pollution in which ground dust enters the atmosphere due to driving forces such as wind and human driving.