What are the hazards of smog to the human body?

What are the hazards of smog to the human body?

What are the hazards of haze to human body? I believe everyone knows the harm of haze to it. The air we breathe in on a foggy day has a certain influence on our health. We should do a good job of protection. Let's take a look at what harm smog does to human body.

What are the hazards of smog weather to human body? The increase in the number of cars, the large amount of exhaust gas and the pollution of chemical industry have led to the deterioration of our living environment. The appearance of smog made everyone start to worry about their health. If protective measures are not taken in time in foggy days, long-term inhalation of smog will do a lot of harm to human body.

Nowadays, social development and progress are rapid, but the environment we live in is getting worse and worse, and the frequency of smog and dusty weather is getting higher and higher, especially the smog weather appears frequently in our lives. If this environment is not improved for a long time, it will harm human health. So, what harm will smog weather do to human health? Let's learn more about it from the text.

Hazy weather can cause infection to the upper respiratory tract of human body. Because the smog contains a lot of dust particles and smoke particles, it will attach to the upper respiratory mucosa after entering the respiratory tract, making the nasal cavity drier, destroying the defense ability of the respiratory mucosa, providing opportunities for bacterial invasion, and eventually forming various upper respiratory diseases. Everyone should pay attention to the harm of smog to human health.

Living in a smog environment for a long time will also increase the incidence of bronchial asthma. Because smog contains a large number of bacteria and viruses, as well as dust, soot, dust mites and other suspended substances, inhalation will stimulate respiratory mucosa, leading to cough, sulking, poor breathing and other symptoms, which is more likely to be the culprit of bronchial diseases.

Often living in a smog environment will also increase the incidence of lung cancer, especially in children, which is related to the incomplete development of children's respiratory defense system and poor resistance. In addition, it will increase the incidence of conjunctivitis and cardiovascular and cerebrovascular diseases. Therefore, we should pay attention to the protection work in haze weather.

I believe everyone knows the harm of smog weather to human body. Haze weather will not only cause the above hazards to human body, but also lead to various bacterial diseases and rickets in children. Therefore, you should wear an anti-fog mask when you go out in foggy days, wash your nose with cold water in time when you go home, and increase the amount of drinking water at ordinary times, which can reduce the harm of smog to the human body. If you have respiratory discomfort, you should seek medical advice as soon as possible, and you should not blindly use drugs yourself.

What harm does smog do to human body? 2 What harm does smog do to human body?

In people's daily life and travel, some suspended substances will have an impact on human respiratory tract, which may cause acute upper respiratory tract infection, acute tracheobronchitis and pneumonia, asthma attack, induce or aggravate chronic bronchitis and so on. In particular, children's respiratory tract, trachea and bronchial mucosa are tender, the number of alveoli is small, the development of elastic fibers is poor, and the interstitial development is vigorous, which makes them more susceptible to respiratory viruses.

If you stay in such foggy days for a long time, it will cause tracheitis, laryngitis, pneumonia, wheezing and rhinitis. You know, conjunctivitis and allergic diseases have a certain impact on the growth, development and physique of children and adolescents. In addition, diabetic patients with poor air quality and poor resistance in foggy days are very likely to have lung and trachea infections, which will aggravate their condition.

1, harm to respiratory system

The composition of smog is very complex and small, so small that people can't see it. But it is very lethal, mainly mineral particles, sea salt, sulfate, nitrate, organic aerosol particles, fuel and automobile exhaust. It will directly enter and adhere to the human respiratory tract and alveoli.

Once it enters the human body, it will attack the human body, especially parents with chronic respiratory diseases such as bronchial asthma, chronic bronchitis, obstructive emphysema and chronic obstructive pulmonary disease, which can cause acute attack or acute exacerbation. Long-term exposure to this environment will also induce lung cancer.

2. Harm to cardiovascular system

Hazy days also have a serious impact on cardiovascular and cerebrovascular diseases, which will hinder normal blood circulation, lead to cardiovascular diseases, hypertension, coronary heart disease, cerebral hemorrhage, and may also induce angina pectoris, myocardial infarction and heart failure. In addition, the low air pressure in dense fog will also affect people's mood and make people feel irritable. With the fluctuation of mood, blood pressure will also rise, which may lead to stroke and myocardial infarction. Therefore, patients with cardiovascular and cerebrovascular diseases must take medicine on time and be careful to deal with this "environmental enemy".

3. Weakening ultraviolet rays leads to calcium deficiency.

Hazy weather will lead to layers of suspended matter in the air, which will weaken the intensity of ultraviolet rays reaching the ground. Some people are thinking, isn't this better? You can stop tanning. On the other hand, the weakening of ultraviolet rays, insufficient ultraviolet irradiation and insufficient vitamin D production in the body greatly reduce the absorption of calcium, which has the greatest impact on children. If it is serious, it may cause rickets in infants and slow down the growth and development of children. Do you still think this is a good thing?

4, causing bacterial diseases

Because of the smog, the sun can't shine on the earth, or the sunlight is very weak. We all know that the sun has a certain bactericidal effect. Once Grandpa Sun is away from our grandmother, bacteria, viruses and microorganisms on the surface of the earth will multiply rapidly, and their wanton behavior will cause some allergic diseases to the human body.

5, affect mental health

Ask yourself, will your mood follow the weather? I believe many people are no exception, because many things complement each other. If it is sunny that day, people's mood will suddenly get better. This is not speculation, but people's real thoughts and elegance! Experts point out that continuous foggy days have an impact on people's psychology and body. Psychologically speaking, foggy days will give people a feeling of depression, stimulate or aggravate the state of psychological depression, and lack vitality in doing things.

6. The risk of cancer will increase.

As we all know, the probability of smokers suffering from lung cancer is 60% higher than that of ordinary people, which is a very shocking figure; But today's smog is even more terrible. Expert data show that smog contains more harmful particles, and smog is more likely to cause cancer than smoking. You can imagine what kind of concept this is!

7, affecting traffic safety

It is believed that when haze weather occurs, the visual visibility is very low, which will lead to many traffic accidents. At the same time, it is easy to cause traffic jams.

What are the hazards of smog to the human body? 3 Haze hazard.

First, lung injury

Hazy days have the greatest impact on the respiratory system. The respiratory system has the most frequent contact with the external environment and the contact area is large. Hundreds of atmospheric particles can directly enter and adhere to the upper and lower respiratory tract and lungs of the human body, most of which will be inhaled by the human body. Secondly, the haze weather weakens the surface ultraviolet rays, which easily increases the activity of bacteria in the air. Fine particles can "carry" bacteria and viruses deep into the respiratory system, causing infection.

Second, it hurts my heart.

Particulate pollutants on cloudy days will not only cause myocardial infarction, but also cause myocardial ischemia or injury. The United States investigated 25,000 people with heart disease or bad heart, and found that with the increase of PM2.5, the mortality rate of patients would increase 10 μ g/m3.

Third, it hurts blood vessels.

There are many pollutants in the air in foggy days, and the air pressure is low, which is easy to induce acute attacks of cardiovascular diseases. When the fog is heavy, the water vapor content is high. When people exercise outdoors, sweat is not easy to be discharged, which makes people feel chest tightness and blood pressure rise. Moreover, in foggy weather, the air pressure is relatively low, and people will feel irritable and their blood pressure will naturally rise. In addition, in foggy days, the temperature is often low. Some patients with hypertension and coronary heart disease suddenly go from warm indoor to cold outdoor, and blood vessels expand with heat and contract with cold, which will also increase blood pressure, leading to stroke and myocardial infarction.

Fourth, hurt the skin.

Skin also has respiratory function. In clean air, the skin will be very comfortable and moist, but in a dirty environment, the skin will be very uncomfortable.

In addition, it should be noted that diseases such as colds and allergies are more likely to attack or worsen in foggy days; Some pathogens in smog can cause headaches and even induce diseases such as hypertension and cerebral hemorrhage; Hazy weather will also lead to the weakening of ultraviolet rays in the surface layer, which can enhance the activity of infectious bacteria in the air and increase infectious diseases.

Prevention of smog

1, reduce the number of trains.

In foggy days, indoor air quality is better than outdoor air quality. We should reduce the frequency of going out. If you must go out, you should avoid the rush hour of traffic jam and the road with many cars and avoid inhaling more chemicals. It is also best not to drive a private car, but to take public transportation to contribute to reducing PM2.5

Step 2 wear a mask when you go out

It is essential to wear a mask in foggy days. Wearing a mask can prevent the nose and mouth from directly contacting the smog, which can effectively prevent dust particles from entering the body.

Choose the right mask. Ordinary masks have little effect on 2.5 micron airborne particles. To stop PM2.5, a medical N95 mask is needed, which can resist 95% of 0.3 micron particles and play a certain role. To buy a formal and qualified N95 mask that matches your face size, you should wait until it is dry and fold it in half to prevent the breathing moisture from breeding bacteria on the mask. It should not be worn for too long, and the elderly and patients with cardiovascular diseases should avoid wearing it to avoid dizziness caused by dyspnea.

3. Do a good job in personal hygiene

In foggy days, it is also essential to do a good job of cleaning, especially when you come in from the outside, and you need to clean your face and nose. Some pollutants will enter these two parts, causing harm. It is best to use warm water when washing your face, which is beneficial to wash off the particles on your face. When cleaning the nasal cavity, you can repeatedly clean it with a clean cotton swab dipped in water, or repeatedly absorb water with your nose to blow your nose quickly and avoid choking. In addition to face cleaning, bare parts of the body should also be cleaned.

4. Open the window less in foggy days

Try not to open the window in foggy weather. If you really need to open the window for air, don't open the window immediately after getting up in the morning. You can wait until noon, when the sun rises, and open the window, so as to avoid the harm of smog to your body.

Try to avoid the morning and evening smog peak hours, and the ventilation time should be half an hour to one hour at a time. At the same time, friends who use air conditioning for heating at home should pay attention to window ventilation to ensure adequate indoor oxygen. You can plant a variety of green plants on your balcony, terrace and indoors, such as green crown-leaf plants such as green radish, evergreen and tiger orchid, because of their large leaves and strong adsorption capacity. You can also use an air purifier or something.

5, light diet, drink plenty of water, eat more fruits and vegetables.

The diet in foggy days should choose light and digestible foods rich in vitamins, drink plenty of water and eat more fresh vegetables and fruits, which can not only supplement various vitamins and inorganic salts, but also play a role in moistening the lungs, resolving phlegm, relieving cough, strengthening the spleen and tonifying the kidney. Eat less irritating food and eat more pears, loquats, oranges, oranges and other foods. In foggy days, a light diet can better regulate the body.

Step 6 smoke less

Cigars, cigars and pipes will produce a large number of fine particles belonging to the category of PM2.5 if they are not completely burned. Tobacco smoke contains more than 7000 compounds, including 69 carcinogens and 172 harmful substances, which will seriously harm the health of smokers themselves and those who inhale "second-hand smoke", especially in this smog weather. Therefore, smokers should smoke as little as possible whether they go out or stay indoors.

The harm and prevention of smog days are clearly introduced, and we need to know more about smog common sense.