Influence of smog on human body

There are many natural disasters on the earth, such as volcanoes, earthquakes and mudslides. But some disasters are man-made, such as smog. The root cause of smog is human industrial gas emissions, so what impact does smog have on human body?

Hazy weather affects human body 1 1, and induces respiratory diseases. Finding the composition of smoke is very complicated. There are hundreds of particles. These particles enter the respiratory tract through human breath, which will cause respiratory diseases such as bronchitis and asthma.

2, causing cardiovascular and cerebrovascular diseases. Hazy weather, low oxygen content in the air, will make the heart beat faster and make people feel chest tightness and shortness of breath.

3, causing various bacterial diseases. Because of the foggy weather, the sun can't shine on the earth, or the sun is weak. This will cause bacteria, viruses and microorganisms on the ground to multiply rapidly, causing diseases such as allergies.

4. The risk of cancer increases. As we all know, smokers are 60% more likely to get lung cancer than ordinary people, and smog contains more harmful particles, so smog is more likely to cause cancer than smoking.

5, make people feel depressed and irritable. People's mood is easily influenced by the weather. Haze The weather is gloomy and the air is dirty. People's mood will also become depressed and irritable. Lack of courage in doing things.

6, prone to traffic accidents. Hazy weather will reduce visibility, which can only be seen seriously from a few meters away. It is very dangerous for pedestrians and vehicles on the road.

Children are sensitive and fragile, so they are vulnerable to viruses. Therefore, parents should not take their children out in foggy days. At the same time, you can buy an air freshener at home to freshen the air at home!

Influence of smog on human body 2 What harm does smog do to human body?

Haze is harmful to the human body in the following aspects: in haze weather, low air pressure will cause high humidity, and human sweat cannot be discharged, thus inducing heart disease symptoms.

In smoke, there are a lot of heavy metal particles, harmful substances and other particles. If they enter the respiratory tract and stick to the alveoli, it will cause rhinitis and nasal diseases, and may even cause lung cancer in severe cases.

If people are in smog weather for a long time, it is likely to cause tracheitis, pneumonia, laryngitis, wheezing, rhinitis and allergic diseases. This kind of weather will have some adverse effects on the growth, development and physique of children and adolescents.

Haze is a disastrous weather, including fog and haze. The formation of haze weather is due to the fact that the air contains a large number of fine particles, mixed tiny water droplets or ice crystals, which continue to float in the air and cannot be degraded. Long-term exposure of human body to smog weather will seriously affect health.

Due to the lack of sunshine caused by smog weather, pathogenic microorganisms such as bacteria on the surface will multiply rapidly, thus increasing the chances and probability of human infection and infectious diseases.

Moreover, the fine particles in the smog are inhaled into the respiratory tract, which will cause damage to the respiratory system, such as bronchitis, chronic bronchitis, interstitial pneumonia and so on. It is reported that long-term smog will also lead to the risk of cancer and affect the nervous system, causing dizziness, headache and other symptoms.

According to literature reports, every increase in PM2.5 in the air is 10ug/m? The function of human brain will decline for three years. In addition, smog weather is also the cause of traffic accidents. Therefore, smog weather is a state of air pollution.

How is the smog formed?

The similarity between fog and haze is sight distance obstacle. However, the reasons and conditions for the formation of fog and haze are quite different. Fog is a large number of tiny water droplets or ice crystals floating in the air, and the formation conditions should have a high water vapor saturation coefficient. When fog appears, the relative humidity of air often reaches 100% or approaches 100%.

With the daily change of air humidity, fog is more common or thicker in the morning and evening, and it becomes lighter or even disappears during the day. The effective horizontal visibility is less than 1KM in fog. When the effective horizontal visibility is 1- 10KM, it is called light fog.

There is actually a difference between "fog" and "haze". Sun Leng, a senior engineer in the Climate System Monitoring Office of the National Climate Center, pointed out that fog refers to the weather phenomenon when the visibility is lower than 1 km due to the condensation of suspended water vapor in the atmosphere. The formation of smog is mainly the result of a large number of suspended particles in the air and meteorological conditions.

There are three reasons: the phenomenon of increasing static wind in horizontal direction. The higher the buildings are built in the city, the obstruction and friction of airflow passing through the urban area will be obviously weakened.

The increase of static wind phenomenon is not conducive to the diffusion and dilution of suspended particles in the atmosphere, and it is easy to accumulate around urban areas and suburbs;

There is an inversion in the vertical direction. The inversion layer is like a pot cover over a city. This inversion phenomenon that the upper air temperature is higher than the lower air temperature limits the vertical movement of the lower air, making it difficult for suspended particles in the air to drift to the upper air and be blocked at the lower air and near the ground.

The increase of suspended particles in the air. With the growth of urban population and industrial development, the number of motor vehicles has soared, resulting in a large increase in pollutant emissions and suspended solids, which directly leads to a decline in visibility.

In fact, dust "smog" will also occur in home decoration, and indoor dust is pervasive, which is not only harmful to the health of staff and users, but also increases the cleaning burden. When the dust is serious, it will bring more hidden dangers to the decoration project.

The influence of smog weather on human body 3 What are the hazards of smog weather to people?

Smog weather has a very serious impact on people's hearts and brains, and some will hinder normal health, leading to cardiovascular disease, hypertension and even coronary heart disease or cerebral hemorrhage. Severe angina pectoris, myocardial infarction, heart failure and chronic bronchitis.

It can cause shock when it is particularly serious. When there is haze, the air pressure will be relatively low, people will feel particularly irritable and their blood pressure will improve.

In addition, on the other hand, the temperature is generally low when haze days appear, and some patients with hypertension and coronary heart disease will feel uncomfortable walking indoors at low temperature, which will lead to blood vessels expanding with heat and contracting with cold, which will reduce blood pressure and lead to stroke and myocardial infarction.

Therefore, patients with cardiovascular and cerebrovascular diseases must take medicine on time according to the doctor's advice. Not only in cardiovascular and cerebrovascular diseases, but also in the lungs.

Particulate matter contains many harmful substances and is also a pollutant. Therefore, the harm to the human body is multifaceted. If it works for a long time, it will affect our respiratory defense function and cause us to suffer from severe bronchitis. Secondly, the immune function will be damaged correspondingly, which is more serious for children, so it is necessary to avoid inhaling harmful gases.

The biggest reason for smog is that our traffic is getting more and more developed and our industry is getting bigger and bigger.

So I forgot how to pay attention to the environment, which led to haze. Therefore, while taking precautions, we must pay attention to our health, try to wear a mask when going out, and buy air respirator if possible, which will do less harm to our health. Finally, I hope there will be no more smog in China. After all, this is not what we all want.