What is the difference between floating dust and haze?

Floating dust is a component of smog. Simple floating dust can settle in static winds, but together with other haze components, it is not so easy to settle and form a stable structure.

Floating dust seems to be a sandstorm or something. Good defense... You can't prevent the haze.

Smog is an elite force in the ups and downs.

Floating dust is more powerful than haze. Floating dust weather is the least intense sandstorm, and it is also a weather phenomenon that occurs due to the interaction between strong winds and dry dust and sandy ground. Haze is a combination of fog and haze.

In many parts of China, fog is merged into haze as a disastrous weather phenomenon for pre-dust warning forecasting, collectively known as "haze weather". Floating dust is a component of smog, so smog is more severe.

There are three elements to smog formation:

1. The physical base source for the generation of granular dust. China has the largest Loess Plateau in the world, and its soil texture is the most prone to the formation of particulate dust particles.

2. Dust caused by poor movement. For example, if mud flows onto the road after rain or splashing water on the soil in the middle of the road and on the corner of the road, it will cause a lot of dust to be whirled by the wheels after an hour of drying, and even if the particulate matter falls back to the ground, it will be thrown over the city again because the car continues to drive by.

3. The dust-based source and the motion difference process are concentrated in a certain spatial range, and the particles eventually accumulate with the nodules of water molecules to form haze. At present, among the more than 350 cities in the Loess Plateau region of China, the stock of the three elements of haze structure is quite abundant.

Dusty weather and haze are both common meteorological phenomena, but their nature and causes are different. The specific differences are as follows:

1.The causes are different: Dusty and foggy weather is formed due to the suspension of large amounts of particulate matter such as dust, aerosols, and smoke in the air, usually in dry, windy weather.

Smog, on the other hand, is caused by the accumulation of particulate matter and harmful gases (such as sulfur dioxide and nitrogen oxides) in the atmosphere under certain meteorological conditions, usually in humid and windy weather.

2.Different forms: the form of dust and fog weather is mostly gray-yellow, because the particulate matter suspended in the air is larger; The color of smog is mostly grayish-white or light yellow because the particulate matter in it is smaller.

3.The impact on human health is different: although dust and fog weather will have a certain impact on human health, it is not easy to enter the deep respiratory tract of the human body due to its large particulate matter, so the harm to the human body is relatively small.

The fine particulate matter and harmful gases in the haze can enter the deep respiratory tract of the human body, which is harmful to human health and can easily cause respiratory diseases and cardiovascular diseases.

4.Different protective measures: In dusty and foggy weather, people can reduce the impact on health by wearing masks, reducing outdoor activities, etc.; In haze weather, due to its greater harm to health, it is necessary to take more stringent protective measures, such as wearing professional protective mouths to chain trap covers, reducing outdoor activities, and increasing indoor ventilation.

In general, there are certain differences between dust and fog weather and haze in terms of causes, forms, impacts on human health and protective measures, etc., and scientific protection and response need to be carried out according to different meteorological conditions and situations.