Why is the smog getting worse?

Question 1: Why is the smog in China getting worse and worse? The culprit should be the car, which emits exhaust gas day and night, and the tires of the car keep knocking on the road to raise dust. Look at the roads and the streets are full of cars. Do you really need so many cars? Social development and improvement of people's lives = more cars and more rooms? The economic development that makes people live in smog is environmental degradation, so how to improve it? Call for the development of public transport, restrict private cars, and collect car sewage charges like tobacco, and the air in Guangzhou will be fine soon. What kind of barbecue, stir-fry and industrial emissions existed decades ago and contributed little to the formation of smog.

Question 2: Why is the smog in China getting worse? There are many main sources of PM2.5, one is automobile exhaust. The second is road dust and construction dust. The third is the secondary pollution produced by the factory. Fourth, the pollutants emitted by low-altitude coal burning during heating in winter. Fifth, the flue gas generated by the burning of biomass (straw and firewood) and garbage incineration is also an important source of PM2.5

Question 3: Why is the smog getting worse? That's because the lewdness of this world is getting heavier and heavier, which is recorded in Buddhism. You see more and more online pornography, more and more exposed girls, and the relationship between men and women is becoming more and more direct. Therefore, this phenomenon is also interpreted by Taoism as "the unity of heaven and man", and people's minds are confused by obscenity; The weather in the sky is also telepathic.

Question 4: Why is the smog so serious now? 1) Coal: I think coal is the chief culprit of smog in China today. So where to use coal? The first is power generation. With the improvement of people's living standard and production demand in China, the consumption of electric energy is increasing. So where does our electricity come from? According to my personal information summary (it may be inaccurate, please ask the power experts to correct me), more than 60% of China's power energy structure depends on thermal power, that is, coal burning; Hydropower accounts for only about 25%, nuclear power accounts for 5%, and the sum of other clean energy sources such as wind power is less than 10%. In other words, most of the electricity we use is obtained by burning coal. Secondly, steel-making, cement plants, urban heating and other high-energy industries also rely on coal. I think there are still few people in our country who use oil or natural gas as the main energy materials to generate electricity and heat. After the Germans realized the high pollution of coal burning, there is almost no place to use coal today, and all of them use natural gas as the main energy source.

2) Urban construction: I just saw Academician Jiang Yi calling on China to strictly control the total construction area. This is very important. Another very important factor is our urban planning model. Fiona Fang is a city with hundreds of square kilometers, where tens of millions of people live. It's hard not to be foggy in such a city. As we all know, any human activity is a process of consuming oxygen and eliminating carbon dioxide. Excluding the smog of particulate matter, in such an urban structure, even the generated carbon dioxide does not know where to spread, let alone smog particles. You may have been to many small towns or villages in Europe. In Germany, there is a city, Fiona Fang, which is a big city with dozens of square kilometers. If you drive, it is often a city. You can walk three or five kilometers at most. Ten kilometers will drive to a village full of farmland, and another ten kilometers will be a small town or city. Moreover, except for a few big cities (such as Munich, Frankfurt, Hamburg, etc. ), in most other cities/kloc-there are few high-rise buildings above 0/0 floor. This structure provides a breathing "lung" for our city, and there are no traffic problems such as congestion. I think that the per capita area of Germany should not be larger than that of China, and the per capita car ownership should not be smaller than that of China, but there is no smog and terrible Beijing congestion. So I think that in our urban planning concept, serious route mistakes have taken place in the past decade or so. Although it is a little late to correct it now, I hope to learn some lessons from the next urbanization.

3) Followed by automobile exhaust. At this point, it may really be that the quality of oil products in our country needs to be greatly improved. 4) *** officials and experts often say that the dust on the construction site (these dust can't be 2.5 microns in size, much larger than this) and mutton kebabs, which I personally think is nonsense and has little contribution.

Question 5: Why is the smog getting worse and worse, but there is still no treatment? It cannot be said that there is no governance.

After all, there are still some policies to control smog, but these policies are either not specific and unclear, or they are not implemented in place when they are actually implemented.

The reason is complicated. Simply put, smog is linked to the economy and people's livelihood. Haze mainly comes from tail gas and industrial pollution, especially industrial pollution. Everyone knows this, but if these polluting industries are not allowed to continue to develop, many people will lose their jobs, which will affect economic development, especially the political achievements of local officials. Therefore, many officials do not want to manage with care, and some are powerless.

Of course, this is only a simple generalization, and there are many complicated reasons behind it.

You can watch Chai Jing's documentary "Under the Sky" to find out.

Question 6: Why is the smog getting heavier and heavier? Hazy weather often occurs in autumn and winter, especially in heating period. Due to the substantial increase in coal consumption and pollutant emissions, unfavorable meteorological diffusion conditions in winter lead to frequent heavy pollution weather.

Question 7: Why is the smog serious in China? Industrial waste gas is too serious to be discharged well, so many small particles are suspended in the air, forming smog.

The general dust mask has low protective effect and poor sealing performance! Particles that can enter the depths of human lungs are very small, usually below 7 microns, which is harmful to health. It is the culprit of all kinds of pneumoconiosis, and it is also the main protection object of anti-particle masks. Nine-headed eagle nano mask is recognized as a protective weapon in China, and Terminator 2 is even better.

Question 8: Why is the smog in Beijing getting worse? As we all know, the environment has self-purification ability. When polluted, under the action of physics, chemistry and biology, the environment can gradually eliminate pollutants and achieve the purpose of natural purification. For example, after pollutants are discharged into water, they can often be restored to the state before being polluted through their own physical, chemical and biological superposition. However, if the pollution exceeds the self-purification limit of the water body, the water body will be polluted and the clean water will become dirty water. Another example is the atmosphere. Physical and chemical actions such as dilution, diffusion and oxidation of the atmosphere can make the pollutants entering the atmosphere gradually disappear. This is the self-purification ability of the atmosphere. However, if pollutants accumulate to a certain amount and reach the limit of environmental self-purification, clean air will become smog air.

Rome was not built in a day. The smog in Beijing didn't suddenly appear. Before 20 1 1, the annual smog was only distributed in individual periods and did not last long. Since then, the smog has become increasingly fierce and out of control, forming the status quo of Beijing's non-wind or haze. Nowadays, smog appears repeatedly in Beijing. On the surface, it is influenced by the external factor of unfavorable climatic conditions, but the deep-seated reason is the concentrated appearance of environmental problems accumulated in the process of rapid industrialization and urbanization in China. High energy consumption, high emissions, heavy pollution, overcapacity, unreasonable layout, excessive energy consumption, continuous strengthening of the energy structure dominated by coal, rapid increase in the number of urban motor vehicles, substantial increase in pollution emissions, construction sites everywhere, insufficient pollution control, and the total amount of major air pollution emissions far exceeds the environmental capacity. It is precisely because of the fragile environment in Beijing and its surrounding areas that it cannot support the sewage discharge of a large number of enterprises. In winter, burning coal to keep warm and setting off fireworks at the Lantern Festival have become another step. When the last straw that crushed the camel fell, nature began to punish us. The number of haze days has increased year by year, and the degree of haze has deteriorated year by year. If we don't change the mode of economic development, adjust the industrial structure, change the backward production and lifestyle, reduce smog and improve air quality as soon as possible, it will be difficult to achieve the goal.

Nature has the ability to purify itself and discharge pollutants, but this ability is limited. When the pollutant discharge does not exceed the purification capacity of nature, there will be no smog. Only when it exceeds a certain limit and nature can't digest so many pollutants will it warn human beings in the form of smog. This is also the law that quantitative change causes qualitative change. It is more scientific and appropriate to explain the causes of smog with "accumulation theory", which is conducive to coming up with feasible and targeted solutions. In life, if we only pay attention to the pollution sources in the smog formation factors, we will only introduce various restrictions such as restrictions on production and production. If we realize that smog is formed because pollutant emissions exceed the purification capacity of nature,

Question 9: Why is the smog so heavy now? exhaust emission

Exhaust emission is the most important and direct factor leading to haze weather. Exhaust emissions include the exhaust emissions of various cars, muck trucks and private cars, as well as industrial exhaust emissions such as thermal power generation, including the exhaust emissions of residents using coal and natural gas, and the exhaust emissions of farmers burning crop straws such as straw and rice straw.

2

Surface vegetation destruction

We all know that surface plants play an important role in water conservation and soil erosion prevention. Influenced by climate and human factors, the trend of desertification in China is obvious, and surface desertification leads to dust flying, which is also an important factor leading to smog.

three

Meteorological change

The main component of smog is aerosol, and the suspension of aerosol in the air is affected by meteorological conditions. For example, in places with a lot of rainfall in the south, precipitation has become less and less in recent years, and airborne dust has become more and more serious, thus aggravating smog; In recent years, the winter wind in North China is weak, and the smog can't be blown away. Therefore, the Beijing-Tianjin-Tangshan area became the hardest hit by smog in China last year.

four

Construction road dust

In order to revitalize the declining economy, infrastructure construction is being carried out all over the country, especially the transformation of subways, railways and highways. Many cities present a scene of potholes, like a piece of city; Coupled with the real estate bubble, urban expansion, building dust has also become an important factor leading to serious smog.

Question 10: What should I do if the smog is so serious? Eight methods of smog weather protection:

First, avoid morning exercises in foggy days.

The amount of oxygen needed by the human body increases during morning exercise. With the deepening of breathing, harmful substances in the fog will be inhaled into the respiratory tract, thus endangering health. You can do morning exercises after the sun comes out. You can also switch to indoor sports. Judging from the time when the sun comes out, the better time for outdoor sports in winter is 9 am.

Second, try to reduce going out.

In foggy weather, try to reduce going out. If you have to go out, you'd better wear a mask. For people with allergic asthma, wearing a mask is more important. Masks can prevent some allergens such as dust mites from entering the nasal cavity and play a certain protective role.

Third, patients insist on taking medicine.

Patients with respiratory diseases and patients with cardiovascular and cerebrovascular diseases should insist on taking medicine on time in foggy days to avoid getting sick; And strengthen self-monitoring, pay attention to the body's feelings and reactions, and seek medical advice in time if you feel unwell.

Fourth, drink more tung platycodon grandiflorum tea, tung ginseng tea, tung platycodon grandiflorum granules and tung orange stem soup.

These herbal teas can prevent and treat throat itching caused by inhaling dirty air in foggy days, and have a good lung moistening effect. Especially in the afternoon, the effect is better. Because the fog is thickest in the morning and almost disappears at noon, people inhale more dust and impurities in the morning, so they can clear their lungs in time when drinking in the afternoon.

Fifth, pay attention to regulating emotions.

People who are psychologically fragile and have psychological barriers will feel extremely heavy, nervous and depressed in this weather. Such people should pay attention to emotional adjustment in foggy days. You can watch comedy TV series or listen to cross talk at home to cheer yourself up.

Don't close the window too tightly.

There will be kitchen fume pollution and furniture additive pollution at home. If there is no ventilation, dirty indoor air will also be harmful to health. You can choose to open the window for a short time at noon with sufficient sunshine and less pollutants.

Seven, try to stay away from the road.

The concentration of pollutants is the highest when large cars enter the city during peak hours and at night.

Eight, calcium, vitamin D, eat more tofu, Sydney.

Fish and tofu are people's daily favorite foods. Fish is a kind of "intensive" nutrient, and tofu is both medicine and food, which can replenish qi and deficiency, and its calcium content is also quite high. Vitamin D rich in fish has certain biological activity, which can increase the absorption rate of calcium by more than 20 times. Stewed lily in Sydney can achieve the effect of moistening lung and resisting virus, and you can eat more in foggy days.

I hope it helps you.