What s going on with smog weather, is smog weather the same thing?

This kind of weather can be said to be a natural meteorological cause since ancient times, and there are also pollution emission reasons. Visibility is affected by a large number of very fine dust or smoke particles floating in the air. But don't be too afraid.

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To put it simply, it is formed by air pollution caused by a series of pollutants emitted by human beings engaged in production, processing, life, and construction.

Humans don't pay attention to the atmosphere, and the atmosphere doesn't pay attention to humans.

This phenomenon has both meteorological and pollution emission causes. Visibility is affected by a large number of very fine dust or smoke particles floating in the air.

Fog and haze are not the same thing, in the case of sufficient water vapor, breeze and stable atmosphere, when the relative humidity reaches 100%, the water vapor in the air will condense into fine water droplets suspended in the sky, so that the visibility of the ground level of Soto is reduced, this weather phenomenon is called fog.

Fog is caused by a large number of tiny water droplets or ice crystals suspended in the air near the ground, making the horizontal visibility less than 1 km; Haze is when a large number of extremely fine particles float evenly in the air, allowing for horizontal visibility. Generally speaking, the difference between fog and haze mainly lies in the size of the water content: a water content of more than 90% is called fog, and a water content of less than 80% is called haze.

Between 80% and 90%, it is a mixture of fog and haze, but the main ingredient is haze.

<> Guo Rongfen, chief service officer of Yunnan Provincial Meteorological Service Center. "Fog is a lot of water vapor, and haze is often mixed with fog to become what we often call haze, that is, very small ultrafine particles in the air, that is, to the human respiratory tract. According to meteorological experts, haze, fog, and haze are a combination of words.

Smog is common in cities.

Guo Rongfen, chief service officer of the Yunnan Provincial Meteorological Service Center, said"Smog is like a drug. It has both advantages and disadvantages.

In terms of disasters, it is a disastrous weather, and it is a frequent visitor in autumn and winter. Fog is a natural phenomenon in which a large number of tiny water droplets or ice crystals are suspended in the air close to the ground, reducing visibility to less than 1 km.

Haze is also known as haze, and in the China Meteorological Administration's "Surface Meteorological Observation Specification", haze weather is defined as: "A large number of extremely fine dry dust particles float uniformly in the air, causing the air with horizontal visibility less than 10 kilometers to become cloudy, making bright things in the distance yellow and red and dark things blue. "When the average relative humidity is less than 80% of the atmospheric turbidity, the visibility deterioration caused by blurred vision is caused by haze, when the relative humidity is greater than 90% of the atmospheric turbidity, the deterioration of visibility caused by blurred vision is caused by fog, and when the relative humidity is 80 90% of the atmospheric turbidity, the deterioration of visibility caused by blurred vision is caused by the mixture of fog and haze; But the main ingredient is haze.

The thickness of the haze is relatively large, up to about 1 3 km.

When the water vapor suspended in the atmosphere condenses and the visibility is less than 1,000 meters, meteorology calls it fog. Saturation occurs when the water vapor contained in the air reaches its maximum. If there is more water vapor than the saturated amount, the excess will condense and combine with the tiny dust particles in the air to form small water droplets or ice crystals, which will be suspended in the air layer near the ground and become fog.

The lower the temperature, the less water vapor can hold in the air, and the more likely it is to form haze.

In hazy weather, you can choose to arrange a MIA fresh air system at home. It is to use the function of ventilation to continuously discharge the dirty gas in the stove imitation room to the outside, and at the same time send the fresh air purified by the machine to the room to ensure the freshness and cleanliness of the indoor air.

Haze weather is a state of air pollution, haze is a general expression of the excessive content of various suspended particulate matter in the atmosphere, especially the aerodynamic equivalent diameter of particles less than or equal to microns) is considered to be the "culprit" of haze weather. With the deterioration of air quality, the phenomenon of haze weather has increased, and the harm has increased. In many parts of China, haze weather phenomena are combined with fog as early warning and forecasting of severe weather.

Collectively referred to as "haze weather".

Precautionary measures: 1. Open windows less in hazy weather. Be sure to wear a mask when you go out, drink more water, drink more traditional Chinese medicine tea such as chrysanthemum tea, prevent diseases, eat more fruits, and deeply clean your hair after returning home.

2. Go out less.

3. Drink plenty of tea.

4. Supplement vitamin D in moderation.

5. Eat a light diet and drink plenty of water.

The formation of haze is caused by both meteorological factors and other reasons such as pollution emissions. Unfavorable meteorological conditions are a direct inducement to the formation of haze.

Cause. North China is affected by the convergence of cold and warm air, and it is very prone to heavy weather.

As a result, air pollutants accumulate and air quality deteriorates, resulting in haze. Large pollutant emissions are the root cause of haze formation, according to environmental protection.

According to bureau statistics, half of the PM2 in the country .5 are from vehicle exhaust and construction emissions.

In fact, China's environmental protection laws are one of the most in the world, but there are long-term laws and regulations that are incomplete and the process is not complete.

The perfect situation has led to the further deterioration of China's air environment.

There are three main reasons for the formation of haze:

1. The physical base source for the generation of particulate field 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 street, after an hour of dry bucket ignition, it will cause a lot of dust to be spun by the wheels, and even if these particulate matter dissolve back to the ground, it will be thrown over the empty city again due to the continuous driving of cars.

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 haze structure is quite abundant.

In general, smog is usually caused by a combination of multiple pollution sources, mainly composed of sulphur dioxide, nitrogen oxides and respirable particulate matter, which combine with the fog and make the sky instantly gloomy and gray. Its sources include automobile exhaust, industrial emissions, construction dust, garbage incineration, volcanic eruptions, etc.

Morning and evening are the peak period of heating boilers, and a large number of pollutants such as smoke and dust suspended solids and automobile exhaust are not easy to diffuse under the conditions of low air pressure and low wind, and combine with the water vapor in the low-level air, which is relatively easy to form smoke (fog), and this smoke (fog) often lasts for a long time. But in this kind of weather, we must pay attention to wearing masks when going out and be prepared, but in order to solve this problem, we still have to start from our daily life, such as: try to use less fossil fuels, secondary energy and other pollutants, we must pay attention to the use of new energy - solar energy, and pay attention to some small things around us to improve the environment

I hope that while you see it, you can also pay attention to climate improvement**, climate improvement - we need you to work together! Join the Huangming team!

The results of air pollution can be referred to the foggy capital of London in that year.

A few main causes of haze weather:

Automobile exhaust gas, industrial exhaust gas, thermal power plants and other factories exceed the standard carbon emissions, vegetation and soil desertification, and some other carbon emissions, etc., in fact, it is a result of uncontrolled industrial civilization, but other countries have begun to have a relatively strict environmental protection system after the development of industrial civilization for a period of time, and there is still a long way to go in China.

In general, fog and haze will not appear at the same time, first explain what fog and haze mean. Fog: When the water vapor in the air meets the cold air near the ground, the water vapor condenses into tiny water droplets suspended in the air.

Fog is small water droplets, and compared to haze, fog is purer. Haze usually refers to haze, that is, tiny particles in the air, between 1 and micron in diameter, the main substance of haze and fog is different, fog is liquid water, haze is solid dust. Haze weather refers to:

When the relative humidity of the atmosphere is between 80-90%, the atmospheric turbidity vision is blurred, and the low visibility of the atmosphere in this case is caused by the mixture of haze and fog, which is called haze weather, but this kind of weather is very rare, because to meet the atmospheric humidity between 80-90%, it is usually after rain, and the rain will filter out the atmospheric dust, and the atmosphere after rain is generally less dusty and not easy to form haze. Is there any haze weather? Yes, haze weather mainly occurs in cities, and cities with serious air pollution are prone to form haze weather after rain and snow, because the weather has the conditions for the formation of fog and haze at the same time.

Fog refers to the weather phenomenon in the atmosphere due to the condensation of suspended water vapor and the visibility is less than 1 km, and the formation of haze is mainly the result of the combined action of a large number of particles suspended in the air and meteorological conditions, and there are three reasons for the formation of haze weather: 1. The phenomenon of static wind in the horizontal direction increases. 2. There is a temperature inversion in the vertical direction.

3. Increase in suspended particulate matter in the air.

With the growth of urban populations and industrial development, the number of motor vehicles has skyrocketed, and pollutant emissions and suspended solids have increased significantly, which directly leads to reduced visibility. In fact, there will also be dust "haze" in home decoration, indoor dust is pervasive, which is not only harmful to the health of workers and users, but also adds to the cleaning burden, and when the dust is serious, it also brings many hidden dangers to the decoration project.

In addition to meteorological conditions, the increase in the concentration of particulate matter (including coarse particulate matter PM10 and fine particulate matter) caused by industrial production, motor vehicle exhaust emissions, and coal burning for heating in winter is an important factor in the generation of haze. Today, many cities are at a critical point in their pollutant emission levels and are very sensitive to meteorological conditions, where air quality can reach the standard when diffusion conditions are good, and air quality and visibility can decline rapidly when encountering adverse weather conditions.

First, the amount of pollutant emissions is large. Coal burning, motor vehicles, industry, dust, these pollution sources emit a lot, and the root cause of this serious pollution.

In large cities, the emission of various pollutants brought by urban operation is very large, and when the pollution diffusion conditions are unfavorable, it is difficult for the pollutants emitted from pollution sources to diffuse, and the air pollution will be aggravated. In particular, since December 2012, the whole of North China has been in extremely low temperatures, and the year-on-year temperature is lower than in previous years, and the impact of low temperatures has led to a corresponding increase in coal-fired heating emissions. The root cause is the large emission of pollutants.

Second, the conditions for proliferation are unfavourable. The recent extremely unfavorable pollution diffusion conditions are the direct cause of this pollution process. The ground is closed and the low pressure is controlled, the ground wind speed decreases, the humidity increases, and the inlet wind inversion and the diffusion of fog and extreme weather gradually form, resulting in continuous accumulation and causing this pollution process.

Thirdly, the contribution of regional pollution and local pollution is superimposed, and the regional pollution and the pollution transmission of the associated area are also important factors in the formation of this heavy pollution.

Recently, the pollution level in the surrounding areas is significantly higher than that in our urban areas, especially in a large area, the transportation and discharge of pollutants in a large area are superimposed, which further increases the concentration level of pollutants and objectively aggravates the pollution level.

The air pollution in the environment is too serious!

The water vapor in the air is formed by the liquefaction of cold and exothermic heat and is centered on the dust in the air.

It is mainly caused by urban exhaust gases, and if there is an inversion layer, it is more difficult for the exhaust gases to diffuse.