Smog composition 1 smog is our common weather. When there is smog, we often wear masks, which brings inconvenience to our travel and is harmful to our health. How to prevent it? How is the smog formed? What is the smog I see? Let's have a look!
Once the smog was very heavy, everyone must know that the row on the central road of the residential building built by China Resources was very high. Under such a heavy smog, even obvious buildings can't be seen. It is conceivable that the influence of smog is great.
Moreover, when we drive, smog will affect our vision, often leading to collisions, and sometimes we can't see the traffic lights clearly. Haze can also cause planes to stop flying ... and so on.
Haze is actually composed of dust particles in the sky, which is almost a small sandstorm. Weather like this is very common. Hazards of smog
The reason is that we have too many chemical plants now. People do not pay attention to environmental protection, cut down forests indiscriminately, and discharge sewage and automobile exhaust into rivers and so on. Why are there so many chemical plants? We have to do this because the demand of human beings is too high.
We should plant more trees, reduce industrial emissions, drive less, think more about environmental protection, eliminate some non-environmental goods, and reduce the needs of life, so that smog will not appear again.
Today, I saw the news broadcast on TV that there was "smog" weather in many cities such as Beijing, and pedestrians wore masks to go out ... So I asked my father curiously, "Is smog an infectious disease?" Dad said, "You can check online yourself, which is more detailed." So, when I turned on the computer, Baidu "smog" realized that this is also a kind of harm.
"Smog" was originally caused by low air pressure in the air, no circulation, many suspended particles, a large amount of tail gas flying on the ground and cars, and smoke produced by factory production or home heating. Particulate matter in "smog" will have a serious impact on human respiratory tract, such as cough, expectoration, asthma and bronchitis. Even worse, it will lead to death. How terrible! I hurried down to see what I could do. According to the online introduction, try not to go out in the morning, wear a mask when going out, and eat more foods that clear the lungs, such as boat-fruited Sterculia tea and stewed red pears with Fritillaria.
Such a big "pest" was originally caused by unlimited exploitation and destruction of the environment by human beings. How I wish the environment we live in is blue sky and clear water, with picturesque seasons! Please give the earth back to green!
Haze composition 3 Recently, severe smog has been around the whole city of Hangzhou. Every morning when I get up and open the window, the room will be filled with smog, which makes my throat itch and I feel unspeakable sadness. Hangzhou uses smog to "lock" the city, and the visibility in most areas is less than 200 meters. Affected by smog, the urban area is caught in serious air pollution, and all seven monitoring points in the city are in a state of "serious pollution". In Hangzhou, although the sun is shining, the buildings seem to be covered with gauze. Every day when I go out, I feel the air is dry and the sky is gray, like flying dust. Because of the high ground humidity and low wind speed in Hangzhou, it is not conducive to the smog dissipation, so the smog days last for a long time. The travel advice given by the environmental protection department is to "cancel unnecessary outdoor activities". This makes us feel bad.
This smog, because human beings don't protect the environment and randomly discharge industrial wastewater, makes the original clear streams and rivers turbid, and there are no cute little fish wandering happily in the water; How serious it is to slash the number of trees in the forest and turn a large area of forest into a desert, which is difficult to resist sandstorms! The streets are sparsely populated, with fewer people and fewer cars. Everyone who goes out is "fully armed", wearing masks, scarves, hats and gloves. The continuous smog weather has caused many people to suffer from respiratory diseases, mostly the elderly and children. The hospital is crowded with people, and the pediatric door is crowded with hundreds of children. This scene is comparable to "Spring Festival travel rush fever". According to statistics, nearly half of the patients in recent days are patients with respiratory diseases, and their clinical manifestations are mostly fever, cough and runny nose, as well as upper respiratory diseases, bronchitis, bronchopneumonia and asthmatic pneumonia. Compared with the same period last year, the number of patients with respiratory diseases has increased by 30% this year. According to the analysis of relevant departments, the haze weather is mainly due to the recent unfavorable temperature and weather conditions, the difficulty of pollutant diffusion, and the large amount of coal burning in winter, which leads to the deterioration of air quality. Long-term ecological damage is also the main cause of bad weather. Therefore, we must protect the environment and stop pollution. Our earth has become riddled with holes now, let's not destroy it again!
This foggy day has brought great inconvenience and harm to people's lives. In order to prevent the harm caused by smog, we should pay attention to the following points:
1, wear a mask when going out;
2, the diet is light and drink plenty of water;
3. Open the window less in foggy days;
4, the right amount of vitamin D.
Only in this way can we fight against the relentless smoke!
Speaking of smog, I believe many people hate it when they talk about it and sigh. No, it was a sunny day a few days ago, and Monday morning gave us a big "surprise".
In the morning, as soon as I stepped out of the door, I was shocked by what I saw: the sky seemed to be covered with a layer of gray cloth, and pedestrians on the road, roadside plants and cars were also dyed gray. Everything is covered with dust. Walking on the street, the visibility is less than 100 meters. The original clear scene became extremely blurred under the influence of smog. Even the bright colors of the traffic lights look a little trance.
At school, the situation has not changed, and the low temperature is useless. The red flag fluttered in mid-air, and the gentle movement was slightly delayed because of the influence of the surrounding dust. Physical education class in the morning has also been cancelled, because many small particles will be inhaled, and the oxygen content in the air will be reduced, which is extremely unsuitable for exercise. I don't know whether to be happy or sad.
The smog is really annoying!
This morning, I got up from the warm bed and looked out of the window. Wow! A vast white fog, I seem to be in a fairyland. At this moment, I heard my mother say to my father, "The smog is so heavy today that I can't even see the house opposite." Only then did I know that the white fog outside the window was called "haze".
So what's the difference between fog and haze? Let me introduce you.
Fog is an aerosol system composed of a large number of tiny water droplets or ice crystals suspended in the air near the ground, and it is the product of condensation (or sublimation) of water vapor in the air near the ground. The existence of fog will reduce air transparency and worsen visibility. If the horizontal visibility of the target drops below 1000 meters, the weather phenomenon of water vapor condensation (or condensation) suspended in the air near the ground is called fog. The phenomenon that the horizontal visibility of the target is 1000- 10000 meters is called light fog or haze. When fog is formed, the atmospheric humidity should be saturated (if there are a large number of condensation nuclei, the relative humidity may not reach 100%, and saturation may occur). As far as its physical essence is concerned, fog and cloud are the products of condensation (or condensation) of water vapor in the air, so fog becomes a cloud when it rises from the ground, and it is called fog when it falls to the ground or moves to the mountains. Generally, the thickness of fog is relatively small, and the thickness of common radiation fog is between tens of meters and one hundred and two hundred meters. Fog, like clouds, has obvious boundary with clear sky area, and the droplet concentration distribution is uneven. The droplet size is large, ranging from a few microns to 100 micron, with an average diameter of about 10-20 micron. The naked eye can see the droplets floating in the air. Because the light scattered by fog composed of liquid water or ice crystals has little to do with wavelength, the fog looks milky white or bluish white.
What about smog? There are a large number of tiny dust particles, smoke particles or salt particles suspended in the lower part of the lower atmospheric stability layer and accumulated. If the weather is clear, the air is dry and stable, and the wind is weak, a large number of tiny dry dust particles invisible to the naked eye float evenly in the air, making the air turbid, and bright objects in the distance appear yellow or red, and black objects appear slightly blue. This is haze. At this time, the horizontal visibility in the air is usually below 10 km.
Why is there smog in this weather? Actually, it's all caused by some pollution. Industrial pollution, exhaust emissions, these behaviors will produce "smog." Therefore, the best way is not to exceed the standard to discharge sewage and pollute the air, so that our home will become beautiful!
Haze Haze Composition 6 I have often heard about smog recently. I thought I was suffering somewhere else. I didn't expect to wake up in the morning and find that it was foggy around. I don't know how much inconvenience it will bring to people when the haze weather strikes!
In recent weeks, I don't know what happened to the air. There is dense fog almost every week. When I went out, the street was filled with dense fog, as if I had entered a charming hole. The milky fog, like light smoke and impenetrable gauze, surrounds me all the time.
Walking on the road, you can only see the things around you clearly, even the tall buildings opposite are blurred, but suddenly I turned around and saw the car at the end of the road. Looking at this nasty ghost weather, I seem to see the black smoke from the factory chimney, the smoke all over the sky after the fireworks dispersed, and the smoke burning straw. ...
Many people may not have thought about how this smog came about, and there is a cause and effect. When the traffic on the road is increasing day by day and firecrackers are "popping", it is doomed that we must eat such bitter fruit. Looking at the Spring Festival, it is easy to see that there are fewer fireworks than in previous years. Who knew that when this business opened, there were more firecrackers than the Spring Festival and Lantern Festival? This is a beautiful night, but this night is not only a grand visual feast, but also smog weather again and again. This kind of fine particles floating in the air can't be resisted by ordinary masks, and it will only bring people harm again and again.
Haze is very harmful, which will affect roads, railways, aviation, power supply systems and crop growth. It is also easy to lead to the spread of infectious diseases and the occurrence of various diseases. Endanger people's health. Moreover, it will make it difficult for pollutants in the air to diffuse, enhance the toxicity of harmful substances, and even lead to toxic fog in serious cases. And it will do great harm to people, especially to the respiratory system. It is reported that the number of people suffering from respiratory diseases this winter has increased by% 30-%40 compared with last winter. What an amazing number this is, which deserves our deep thought. Therefore, it is urgent to prevent haze weather.
Our preventive measures should be in place, and morning exercises and outdoor sports should be stopped in foggy days. That's not enough. I think the main reason for this bad weather is the emission of automobile exhaust and industrial production exhaust. Therefore, the state should introduce policies as soon as possible to manage and control the emission of harmful gases, plant more trees and grass, and purify our environment. I think, if everyone mobilizes, the foggy weather should run away despondently.
Hazy weather has a lot to do with our environmental pollution. Only when we take action to protect the environment and our home, can we stay away from the smog, restore the original beauty of our home and make our life more and more comfortable!
There has been smog in recent days, which has kept us from going out and stretching for a long time.
Smoke is called PM2. It is a fine granular object floating in the air, and its diameter is one tenth of that of hair, so it is a harmful particulate gas. Most of them come from human pollution to the atmosphere, such as automobile exhaust, gas generated by burning garbage, smoke emitted by factory production and so on.
Haze will also affect air quality, resulting in air pollution, greenhouse gases, acid rain and other adverse climate. The most important thing is the impact on human beings. Excessive inhalation of PM2. Particulate matter may lead to life-threatening diseases such as chronic respiratory diseases and lung cancer. Running in the smoke is like chronic suicide. In recent years, the probability of suffering from respiratory diseases in the world has greatly increased, and more and more people are sick because of excessive inhalation of harmful gases.
1950 The sky is blue sky and white clouds, and now the sky is gray. Over the past 70 years, our earth has undergone earth-shaking changes and the ecological balance has been broken. If proper measures are not taken, by 20xx, nearly half of the world's land will be submerged by seawater, and hundreds of millions of people will be homeless.
Let's work together to make our home, the earth, more environmentally friendly. After all, we only have one earth!