The haze in the air does not subside for a long time

The air is not circulated, and the temperature is too high.

The hazards of smog to the human body are as follows:

1. Smog damages the lungs.

Hazy weather, air quality declines, and the air contains a large number of harmful substances, which are most likely to affect the health of the respiratory system. Our human respiratory system is the most in contact with the external environment, and harmful particles in the air will directly enter the human respiratory system and then the lungs. The ultraviolet rays are weakened due to smog weather, and the germs in the air are easy to intensify, which can be inhaled into the respiratory tract with air particles, causing infection.

2. Smog hurts the heart.

According to medical research, harmful pollution particles in hazy weather can cause symptoms of myocardial infarction, causing myocardial ischemia or injury. It is recommended that people with heart diseases must pay attention to protect themselves and avoid going out in hazy weather.

3. Haze hurts blood vessels.

In hazy weather, there are more pollutants in the air and the air pressure decreases, which can easily cause cardiovascular diseases**. When the fog is very strong, the water vapor content in the air is high, and the sweat in the body is not easy to discharge if you overheat in outdoor activities, and you will have chest tightness, dizziness, irritability, and blood pressure are easy to rise.

4. Endanger the health of the respiratory system.

Haze is particulate matter that she cannot see with the naked eye but can enter the body through breathing. If smog particles are deposited in the human body for a long time, it will have a great impact on our respiratory health, and it is easy to induce the onset of certain diseases, such as asthma. Smog is also negative on lung function and can lead to a decline in lung function.

5. Increase the chance of cancer.

The activity of some infectious bacteria and viruses will be enhanced in haze days, which will increase the incidence of some infectious diseases and greatly increase the probability of cancer.

As the temperature rises, the haze becomes more difficult to dissipate.

Because fog in the actual sense is actually formed by countless tiny water droplets floating in the air, and haze is composed of many tiny aerosols and solid fine particles.

In the former, the fog is quickly evaporated and dissipated by the sun, while the latter cannot.

When the temperature rises, the haze is less likely to dissipate. Because the fog is mainly composed of water vapor, when the temperature rises, the water vapor will evaporate quickly and the fog will disappear. The main components of haze are dust and small particles, which do not easily dissipate even when the temperature rises, unless a wind blows them away. Hope..

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Haze includes fog and haze, which is a climatic phenomenon, and the harm of haze to the human body is mainly manifested in the following aspects:

1. The impact on the respiratory tract, there are a large number of fine particles floating in the haze, which can not be completely degraded, and the fine particles will inevitably be inhaled in the haze environment for a long time, which will be deposited in the respiratory tract, causing damage to the respiratory system, which can induce bronchial asthma, bronchitis, chronic bronchitis, etc.

2. Induce infectious diseases, bacteria are more likely to multiply in hazy weather, thereby increasing the chance of human infection, which can not only cause respiratory tract infection, but also intestinal infection, urinary tract infection, etc.

3. Increase the probability of cancer, it has been reported in relevant literature that long-term exposure to haze increases the probability of a variety of cancers, including bronchopulmonary cancer.

4. The effect on the nervous system is easy to cause dizziness and headache in the haze environment, and it has been reported in the literature that the tiny particles in the haze can cause brain function decline.

Today's smog is because of all kinds of heavy industry, and heavy industry is because of the construction that is taking place in the country. When there is a surplus of houses, roads are repaired, airports and railway stations are completed, people who want to buy cars have bought cars, and the social economy is no longer developing at a high speed, it can change.

If China continues to grow at a high pace, it will catch up with the United States within 40 years. Given that all high-speed countries will slow down before catching up with the United States, China's rapid development will not exceed 40 years. Therefore, even if no other environmental protection measures are taken within 40 years, smog can still be eliminated.

If environmental protection is controlled, or the economy slows down for other reasons, it may be possible to solve the smog problem in 10 or 20 years.

What is the main reason for the heavy and more haze recently? "The main reason is that the pollution emissions are large, and unfavorable meteorological conditions are also an important supporting factor", before 1990, Beijing also had similar unfavorable conditions for diffusion, but there was no heavy pollution. After years of rapid development, the pollutants emitted by coal burning and motor vehicles in Beijing-Tianjin-Hebei and surrounding areas have increased by four or five times.

With the increase in pollutant emissions, the meteorological threshold for haze has been lowered year by year. If the meteorological conditions are slightly worse, smog will occur, and if it is worse, heavy haze pollution will occur.

Smog can only be eliminated after strong winds or heavy rain.

It can be windy, sunny or rainy.

In general, smog improves after a heavy rain, as the rain drops airborne particles to the ground as condensation nuclei. And after heavy rain, the humidity in the air increases, which is also conducive to slowing down the haze. However, the most fundamental condition for controlling smog still depends on people's consciousness.

Haze is a combination of fog and haze. Smog is common in cities. In many parts of China, fog is combined with haze as a disastrous weather phenomenon for early warning and forecasting, collectively known as "haze weather".

Smog is the result of the interaction of specific climatic conditions with human activities. The economic and social activities of high-density populations will inevitably emit a large amount of fine particulate matter (pm, once the emission exceeds the atmospheric circulation capacity and carrying capacity, the concentration of fine particulate matter will continue to accumulate, and if affected by static weather, it is very easy to appear large-scale haze.

Precautionary measures. 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.

Wear a mask when you go out.

Drink plenty of tea. Vitamin D supplementation in moderation.

Eat a light diet and drink plenty of water.

Eat more vegetables. Try to go out as much as possible in hazy weather.

Pay attention to your speed when driving.

When you go out, wear a special anti-smog mask, anti-smog nose mask, filter, and breathe fresh air anytime and anywhere.

Avoid exercising on foggy days. You can change to morning exercise after the sun comes out. It can also be changed to an indoor workout.

The patient adheres to the medication. Patients with respiratory diseases and cardiovascular and cerebrovascular diseases should insist on taking medicine on time in foggy days.

Don't close the windows too tightly. You can choose to open the window for a short time at noon when the sun is more abundant and there are fewer pollutants.

Try to stay away from the road. Pollutant concentrations are highest during rush hour and when large cars enter the city at night.

Supplement calcium, vitamin D, eat more tofu, pear, etc.

The emission load of air pollutants is huge, and the amount of coal burned in most areas of the north for heating in winter has increased significantly, resulting in a sharp increase in air pollutant emissions. Air pollution is too bad. Excessive levels of suspended particles in the air.

Measures: "Prohibit barbecues in the city", "Ban firecrackers", "Advocate taking buses", "Cycling" to work.

Concerned about the deterioration of the environment caused by air pollution, we work together to break the vicious circle of traffic congestion and air control.

Let the public participate, so that more comprehensive environmental information can promote their life and consumption patterns, awaken their awareness of the theme of environmental protection, and realize the synchronization of air quality and urban development in the sense of land, industry and population. Li Zhiqing said.