Turbid component

In life, work and study, everyone has been exposed to composition. Composition is a transition from internal speech to external speech, that is, from a compressed and concise language that one can understand to a developed and standardized grammatical structure that others can understand. What is the composition you have seen? The following are my collected compositions about smog. Welcome to read the collection.

Recently, the media often reports information about smog. I heard many reports about smog weather, and then I learned some knowledge about smog by consulting relevant materials and information. The smog phenomenon has also played a negative role in people's health, so it must be effectively controlled.

Sulfur dioxide. Nitrogen oxides and inhalable particles are the three main components of smog, and the former is gaseous pollutants. The last one is that particulate matter is the chief culprit of smog weather pollution at home. When they combine with fog, the weather becomes dark and the sun can't be seen. This particle itself is a pollutant and a heavy metal, and these diameters are less than or equal to 2. Wulanwu, with a diameter of 5 microns, is the source of heavy metals and toxic particles in this city. The first is automobile exhaust. Cars that use diesel are archways and recidivists of fine particles. Small cars that use gasoline emit nitrogen oxides, but in foggy days, they are easily converted into pollutants of secondary particles, which aggravates smog.

The causes of smog are complex and simple. It is human greed that caused such a disaster. Desire is the root of all evil. We should restrain our desires, for example, cutting down trees less and not setting off fireworks. Entrepreneurs should grasp their conscience, reduce air pollution caused by chemicals, or drive small-displacement cars and live a low-carbon life. As a country, we should not only aim at GDP, but also organically combine spiritual civilization and material civilization to purify the social atmosphere. I believe that everyone should do their best for this society. It is everyone's responsibility to protect the environment and raise environmental awareness. I believe that one day the smog will be far away from us.

The first time I realized that there was smog was one day in the winter of 20xx. On the morning of school, I walked along Gongti North Road to the subway station. Suddenly I remembered a sentence, "Beijing can't see low clouds on cloudy days, it seems to be polluted." I remember that the air was suffocating that day. I just didn't know it at the time. This is smog.

I found it foggy outside, and I couldn't even see the mountains clearly. The sun lazily hid under the covers and refused to get up, so the visibility was very low. Turn on the TV, and the news is talking about it. It turns out that schools in Nanjing, Anhui and other areas have been closed because of the foggy weather these days, and Hangzhou has also stopped all outdoor activities of students. Everyone wears a mask when they go out.

I was surprised and ran to ask my mother. My mother told me: "What people usually say about smog is actually composed of fog and haze. The foggy weather looks like fog, but it's actually very different. Fog is formed by the condensation of water vapor in the ground air, while haze is caused by tiny dust particles, fine sand particles and virus particles suspended in the air evenly, and they are intertwined to form haze weather. This kind of weather is very harmful to human body. If we inhale these bacteria and viruses, we will easily get sick and die in severe cases. "

As far as I know, smog weather is caused by secondary pollution, such as automobile exhaust and factory exhaust. Therefore, in addition to reducing outdoor activities and drinking more boiled water, we should also protect the environment, care for our homes and keep the foggy weather away from us.

About smog composition 3 Hello everyone! I am the famous smog.

I played in Nanjing recently. Seeing so much automobile exhaust, so much dust from construction sites and so much waste gas from chemical plants in Nanjing ... haha! Isn't this to welcome me?

"Ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha. They can't see the green trees, colorful flowers, white walls and black tiles of buildings, or even people coming across the street ... all the scenery is under my control.

If people don't wear masks, I will enter people's lungs and block their alveoli one by one, and then they will cough, pneumonia and, in severe cases, lung cancer. I will ground the plane, and the pilot will get lost in the sky and cannot land. I will also make the car on the ground motionless, and the driver will look around and see nothing but my huge body.

Between you and me, I still have many natural enemies! Heavy rain, heavy snow, strong wind and cooling weather, flowers, trees, masks and purifiers are all my natural enemies. During the heavy rain and snow, I slowly landed in the soil with the rain and snow. Strong winds and cool weather tore me to pieces. Flowers, trees and air purifiers can suck me away. Mask, mom, with it, I can't enter other people's bodies.

Ha ha! This is me. Are you scared?

Open the window, the world in front of us today is not as clear and real as before, but gray, with a feeling of "darkness". All the scenery outside seems to be covered with a layer of gauze, vague, as if nothing had happened, can't see their true colors. "Presumably this foggy weather is caused by smog!" I said to myself.

Enter the word "smog" in the computer, click answer, and a sentence "smog, as the name implies, is fog and haze" is introduced. Sulfur dioxide, nitrogen oxides and inhalable particles are the main components of smog. The first two are gaseous pollutants, and the last particulate matter is the chief culprit that aggravates smog weather pollution. They combine with fog and instantly turn the sky gray. "Oh, the original culprit of' darkness' is particulate matter pm 10! I nodded thoughtfully and continued to look down.

"Smog is harmful to the human body after being inhaled into the human respiratory tract. Severe inhalation for a long time will lead to death." Oh, my God, I opened my mouth in front of the computer. I didn't expect a small smog to be so harmful that it could lead to death. This is really surprising.

Nowadays, because of the aggravation of smog weather pollution, many newspapers have published news about smog. For a time, people began to pay attention to the small smog, and everyone began to find ways to solve the smog and protect themselves. But in normal times? This smog seems to be rarely mentioned, and it seems to be very, very far away from us.

I think this is a lesson. Fortunately, this smog can still be controlled. What if we can't control it? Aren't we going to live in darkness forever? We should make preparations before the danger comes, improve our living environment, drive less, and reduce the waste gas emitted by industrial production. These are all methods. We should take preventive measures to protect ourselves from harm.

During this period of time, smog weather generally appeared in most parts of China. The usual blue sky is always gray now, and the number of sick people is gradually increasing.

Do you know what smoke is made of? If you don't know, I'll tell you what smog is made of!

Haze is composed of particles such as ash, sulfuric acid, nitric acid and organic carbon oxides in the air.

These harmful particles are caused by our usual failure to protect the environment, deforestation, garbage invasion, sewage discharge, destroying fields and burning bricks.

Minimize going out in foggy days, and wear cotton masks when going out to prevent the respiratory tract from being "polluted" in foggy days. Wash your face and bare skin in time when you come back from going out, or rinse your nose with clear water. Morning exercise in foggy days will not only lead to respiratory diseases, but also lead to cardiovascular and cerebrovascular diseases; Smog weather should minimize the number of people going to many places, and poor air circulation in some places can easily lead to cross-infection of respiratory diseases. Drink more water, have a light diet, eat more fresh fruits and vegetables, and exercise more to enhance immunity.

Haze is very harmful to human body. Once these deposits enter our bodies, they can never be excreted. You can wear a mask when you go out, which can effectively prevent dust particles from entering the body. Cotton masks are the best because some people are allergic to non-woven fabrics, while cotton masks are generally not allergic and easy to clean. When you come back from going out, you should wash your face and expose your skin immediately.

We should protect the environment, plant more trees, cut down fewer trees and save every piece of paper, every drop of water and every kilowatt hour. Don't let the hateful smog appear again!

Looking out of the window, I suddenly found that there was no blue sky and white clouds, and there was a gray scene between heaven and earth. Even the opposite building had only a hazy outline. This kind of weather is more and more frequent, and the smog silently hangs over our city.

Haze is a turbid phenomenon formed by a large number of particles such as smoke and dust suspended in fog. According to the remote sensing satellite monitoring of the Ministry of Environmental Protection: 65438+29 10, our country10.3 million square kilometers was shrouded in smog, and the air quality was seriously polluted.

How did the foggy weather come about? Many families own cars, which makes our travel more convenient, but the exhaust emissions of cars pollute the air; Power plants, oil refineries and chemical plants "do their best" in our city, but soot and dust are discharged day and night; Gorgeous fireworks and firecrackers are dazzling, but the air is full of smoke, which becomes very turbid, and the air quality drops sharply, PM2. 5. The index of 5.PM 10/0 rises linearly, which are the main causes of smog. While they bring us convenience and pleasure, they also quietly bring us unexpected consequences.

In foggy days, we breathe turbid gas. The smog in the air can cause pneumonia, pharyngolaryngitis, bronchitis, heart failure and other diseases. 1952, the invisible killer in London, England took 4,000 lives in just five days, and took 8,000 lives in the next two months. It can be seen that the power of fog should also sound the alarm for us.

What we want is fresh air and good health. Please don't sacrifice your health for the so-called good life. Drive less, travel green, plant more trees and protect forests. To cure haze, start with me.

Composition 7 About Fog Today is another foggy day. So, do you know what the ubiquitous smog around you is?

Haze is composed of dust, sulfuric acid, nitric acid and organic hydrocarbons in the air. Haze is mainly composed of sulfur dioxide, nitrogen oxides and inhalable particles. There are many kinds of inhalable particles, PM2. Five is one of them. They are both pollutants and carriers of toxic substances such as heavy metals and polycyclic aromatic hydrocarbons.

So, how is the smog formed? The sources of smog are various and different. Such as automobile exhaust, industrial waste gas, dust, dust, and even microorganisms and volcanic ash are the sources of smog.

What harm does smog do to us? Because the diameter of particles in smog is generally 2. Below 5 microns, it can directly enter the body and cause respiratory diseases, cardiovascular and cerebrovascular diseases and other diseases. It will also slow down the growth of children and affect fertility.

Knowing the harm of smog to human body, how should we prevent it? Do less outdoor sports in foggy days, pay attention to cleanliness, don't open windows for ventilation, drink more water and eat fruits. We should wear masks to travel when we go out.

In order to protect the environment, we should drive less, plant more trees, use clean energy and protect the environment, starting from me!

The weather today is really strange. It is still cloudy in the morning. At about 6 pm, a thin layer of fog gradually appeared on the horizon, covering the distant hills.

I thought it was the night that covered the horizon. After five minutes, when I leaned over the window and looked into the distance again, I accidentally found some small granular water droplets on the window glass. After careful study, I found that every droplet contains a small black dust particle, which makes me curious. Looking further away, the tall building seems to be tied with soft white gauze, and the neon-dotted ribbons are more and more ethereal; Cars passing by the parking lot also turned on fog lights, and the light emitted was like a light beam, which was very attractive. It's getting dark, and the water drops on the window are gathering more and more. Slowly, more and more water droplets are sucked. Everything outside the window is so quiet and beautiful, I can't help but be deeply attracted ... just as I was intoxicated, a flash of lightning flashed across the sky, accompanied by lightning, and heavy rain poured down. The rain beat against the glass and the dust was washed away. The fog just now has been blown away.

Hey, isn't this the smog phenomenon mentioned in the nature book?

I dug up a thick book "100,000 Why" at home. Ha, finally found it-yes, this is smog! It is because a large number of particles, such as smoke and dust, are suspended in the air, which blurs the line of sight and reduces the visibility. No wonder there are particles on the window glass. It turns out that the dust in the air is at work!

Composition about smog 9 I planted a small tree and you gave me a piece of green; I shed crystal raindrops, and you gave me fragrance ... but today, the sky is no longer blue and the earth is no longer green, as if covered with a veil.

At least three days a week, I go to physical education class indoors. I sat quietly in my seat and looked listlessly at the scene outside the window. Ah! How come... It seems that I can't see anything clearly on the road, and it's a blur. From a distance, pedestrians are like small gray spots. Today's world is like a gray glass cover, which isolates us from the sun.

I read the materials and learned a lot of scientific truth. Haze refers to sulfuric acid, nitric acid and dust in the air. It is an aerosol system composed of a large number of tiny ice crystals suspended in the air near the ground.

Especially the fog in winter, it is called the biggest killer, and a lot of automobile exhaust and exhaust gas stick to these water droplets. In people's daily life, these substances will have a strong impact on the human respiratory tract, especially those middle-aged and elderly people with diabetes and hypertension, who are more likely to have a heart attack or die.

Hearing this, you must want to ask where the nasty smog comes from. First of all, this is man-made: 70% people use coal to keep warm in cold winter. This is not environmentally friendly, but it will emit smoke and dust in the air. Moreover, it is dry in winter, and people and traffic on the ground will stir up dust. Secondly, it is natural reasons.

Although the beautiful world produces smog, people also have countermeasures: go out less, open windows less, wear masks when going out, and pay attention to personal hygiene. ...

I was very shocked when I watched it under the dome. It turns out that all these smog are man-made, so we have to make up for it, because the earth belongs to human beings and only human beings can save it.

Composition on Fog 10 The fog started this morning, which suddenly made my originally happy mood very bad, making it very inconvenient for people to move. I thought to myself: What's wrong with this weather? Yesterday was foggy, today is foggy. Is this foggy weather over?

At about noon 10, I was about to go out for an interest class when my mother suddenly stopped me and said, "Wu, put on this mask and go out." The air outside is very poor and polluted. Wearing a mask can reduce dust being inhaled into the body. " So, I reluctantly put on a mask and wrapped it in a bag after walking for a while. When I walked on the road and saw many people wearing masks, I was no longer shy. I immediately took off my bag and strode calmly over. At the door of the dance classroom, I took off my mask and walked into the classroom. I was a little surprised to see many students wearing masks.

It's finally ten o'clock. It's time for class. When we saw Mr Yao wearing a mask to give us a class, we all looked at Mr Yao curiously. At this time, many students wearing masks found their heads like headless flies, no longer afraid of bad luck and no longer hiding. An hour and a half passed quickly, and we all forgot the smog weather and masks.

It's foggy! It's foggy! When do you want to finish, and when can we make our action easier? When can I make the air fresh and fresh?

Composition on smog 1 1 Because of the serious air pollution, it caused the foggy weather. The Education Bureau informed us to suspend classes, so we had to do our homework and read books at home. When I looked out of the window, I suddenly found that there was a "gray world" outside, and even the opposite building had only a hazy outline. This kind of weather is more and more frequent, and the smog silently hangs over our city. The environment around us has been seriously damaged, and Mother Earth is ill.

My mother and I went out to buy some daily necessities. My mother said that smog weather can cause respiratory diseases and asked me to wear a mask. Even wearing a mask, I still smell a strong smell of "roasted salted fish", which is very uncomfortable. When I got home, I felt my head burning like smoke. My mother measured my head with her body temperature. Oh, dear! I really have a fever. I had a long rest at home before my fever went down. This shows how powerful the smog is!

Haze is a turbid phenomenon formed by a large number of particles such as smoke and dust suspended in fog. How is the smog formed? Many families own cars, which makes our travel much more convenient, but the exhaust emissions of cars pollute the air; Power plants, oil refineries, chemical plants and other factories "show their talents" in our city, emitting smoke and dust day and night; Gorgeous fireworks are dazzling, but the air is full of smoke and becomes very turbid. These are the main reasons for smog. They have brought us quickness, convenience and pleasure, but they have also quietly brought us unexpected consequences. In order to see the blue sky and white clouds again, to have a healthy body and for our next generation, we should drive less, travel green, plant more trees and protect the forest. Cure haze, start from me! Let's work together in Qi Xin to protect the environment and care for the earth! May our mother earth be beautiful forever! Sky blue and clear water forever!

About the smog composition 12 In recent days, fog has filled the whole campus, and it seems that rain can be smelled in the humid air. Especially when you travel in the morning, half of the roads are foggy, and you can't see people or the surrounding greenery. During the day, the lights are also on. In order to prevent the fog from spreading, all the campuses in the city have entered the smog area these days.

Although people have made great efforts to protect the environment, it can't be completed overnight. In the past, a large number of trees were cut down and roads and bridges were built, which increased the silt in the river bed. Once it rains, the riverbank will be out of control, and the river will overflow into the fields, causing no small flood disaster. Moreover, under the influence of chemical enterprises, the air quality is greatly reduced, more and more houses are built, greening is gradually replaced by high-rise buildings, chimneys, waste gas and garbage follow one after another, so there is smog.

The smog is made by human beings, so it can be said that he is innocent. Because he stayed in the atmosphere well, at most, he turned into a drop of water and fell to the ground, which could also moisten the earth. I don't want a lot of exhaust gas to rush into the clouds and make him mutate, so I have the later smog theory. Haze, known as the invisible killer of air, is extremely wronged. It is obviously a mistake made by human beings. Why should he bear it? Now human beings have an understanding of protecting the environment and are alert to protecting their homes, but what should we do with more and more buildings and less planting area and greening? I hope that mankind will reflect and take practical actions to protect Mother Earth.

After reading it, did you see the harm of smog?

Composition on smog 13 I got up in a good mood early this morning, but looking out of the window, my warm heart suddenly cooled down, because today I met the weather I hate most-smog.

Many articles describe fog as soft, but why is it not as soft as the fog in the article? In fact, this is a very good problem to solve, and the answer is related to everyone's usual living organs: automobile exhaust, toxic gases emitted by chemical plants and dust will all cause smog. It's the same afternoon. It almost scared me to death this morning. Here's the thing. "

Early this morning, I got up in a good mood and looked out of the window. I hope to see the opposite buildings and early risers. But what I saw was completely different from what I hoped. What I actually saw was a white scene. Our family lives on the sixth floor, which is not very high, but from the balcony, we can't even see the tall trees. Dad told me that today's weather is very polluted, so I need to wear a mask, or I will get bronchitis and other diseases. So I put on a mask. Because I'm going to the Children's Palace to learn dance, my father has to drive, which is what I fear most: as soon as I get on the bus, I look out from the front windshield, and the visibility is less than 200 meters, which is so scary! I'm sure my father must be nervous when driving a truck. In fact, I am also very nervous, because I have never seen such terrible weather since I was a child. I was too nervous to catch my breath all the way to school. I will never see such weather again, so I must start from myself and from my side. I know that I can't protect our motherland alone, and my strength is insignificant, but if we protect the environment together, it will play a huge role!

About the smog composition 14 A terrible fog came quietly without knowing it. Looking out, I can only see a vast expanse of whiteness, and the streets are filled with dense fog. The school should also be closed. Because of this damn weather, a beautiful day has become monotonous. There is only white and gray around. When driving, people can't see the road ahead clearly, as if they have entered a charming hole where they can't see their fingers. Most car owners drive by feeling with two-way lights on, but many cars have accidents. People no longer go out, and people who go out wear masks. Because this kind of ghost weather not only affects the sight, but also is harmful to the human body. It is said that it will reduce the defense function of human respiratory system, and make breathing blocked, chest tightness, dry cough, itchy throat and so on. Its harm is even more serious than "second-hand smoke", which may cause death in severe cases.

However, we might as well think about it, what makes our health so dangerous? It is the billowing black smoke emitted by factories, the tail gas emitted by more and more cars on the road every day, the smoke produced by setting off fireworks and firecrackers, or the smoke produced by burning straw ... The reason why the environment has become like this is because of the bitter fruit of people themselves. If people can stop polluting the environment, our homes will not be harmed and our personal safety will not be threatened.

At this moment, I sincerely hope that people can wake up from this incident and stop doing things that hurt themselves. Let's contribute to a clean home.