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Why is the haze serious in winter? How to deal with haze in winter

haze is very harmful to the body, so now China is vigorously rectifying haze. I believe that many people will have this experience. Every year, winter is the most serious time of haze in a city. There is a pungent smell in the air for a long time, which is hard to disperse. Then why is the haze so serious in winter? What is the reason for the serious haze in winter?

Why is there haze in winter? Poor air mobility

The reason why haze is easy to occur in winter is that the air mobility in the near ground layer is weak in autumn and winter, and pollutants are easy to accumulate, which is not conducive to diffusion. Generally speaking, there are four ways of pollutant diffusion: atmospheric turbulence (irregular movement of air micro cluster), convective diffusion, advection diffusion and strong weather activity (precipitation, gale, etc.). However, due to the fall and winter seasons, the above-mentioned four diffusion ways have been reduced. In addition, the inversion layer often occurs in autumn and winter seasons, which further makes the atmosphere in a static and stable state, so that pollutants cannot be diffused.

Why is it easy to have haze in winter - frequent cold air activities

Autumn and winter are the seasons with frequent cold air activities, which are not conducive to the occurrence of fog and haze. In recent years, the decrease of cold air process in autumn and winter is also an important reason for the frequent occurrence of fog and haze in China. Since 1961, the cold air process has been decreasing in winter and autumn.

Why is it easy to have haze in winter - less precipitation

Rainfall and snowfall can clear and wash the fog and haze in the atmosphere. More precipitation in summer is not conducive to the occurrence of fog and haze, while less precipitation days in autumn and winter are conducive to the occurrence of fog and haze. Statistics show that the number of precipitation days in autumn and winter has decreased since 1961.

Why is it easy to have haze in winter - low air humidity

When haze occurs, the weather conditions are characterized by stable and dry air mass, and there are many days when such weather conditions are met in autumn and winter. It is found that the humidity in autumn and winter is small, and in the past 50 years, the autumn shows a significant downward trend, and the autumn and winter show more and more dry signs, which is conducive to the increase of haze days and the decrease of fog days.

How to deal with haze in winter

1. You must wear a mask when you go out

When you travel in haze, you must wear a mask, and it is also an art to choose the right one. In haze weather, particles will enter the body along our respiratory tract, thus affecting our health. Therefore, dust masks are necessary for this kind of weather.

2. Do a good job in personal hygiene

In haze weather, always wash your hands and face. The body parts exposed to the air seem to be normal, but they are full of bacteria and particles that cannot be seen by the naked eye. If it cannot be cleaned in time, it will enter the human body along with the skin, mouth, etc. 3. The weather with extremely low visibility should be minimized. Going out not only increases the burden of the road, but also increases the frequency of traffic accidents. At the same time, because of more direct air breathing, it also has direct harm to human body. Therefore, try not to go out in haze.

4. Keep windows as low as possible

Most people like to open windows for ventilation in winter, but try not to open windows in haze. We can plant some vigorous green plants such as green pineapple indoors, open air purifier, air humidifier, etc., and adjust indoor environment. But it is necessary to prevent the harmful gas from entering.

5. Drink more water

We are used to joking that drinking more water is omnipotent. Cold, fever, runny nose can be solved by drinking more water. As a matter of fact, water is omnipotent. What it brings us is the extension line of life. Drink more water, take away the filth in the body, take away the superfluous liquid, renew the body fluid, and keep life fresh and energetic forever. Therefore, drink more water, there is a certain scientific basis, can not be laughed off.