800 words on smog (1)
Reading newspapers in recent days, I found that air pollution is getting worse and worse, and the air quality index in Hangzhou is declining. Why? It turns out that this is all caused by smog.
What exactly is smog? How harmful is it? How is the haze weather formed? What can we do to dare to walk in foggy days? Through the collection of information and my own understanding, I found the answer.
It turns out that smog is a combination of fog and haze. Because of the deterioration of air quality, the phenomenon of smog weather has increased and the harm has increased. In many areas of our country, the smog weather phenomenon is combined with fog as an early warning and forecast of disastrous weather. Collectively referred to as "haze weather". Haze is very harmful! Due to the weather phenomena such as smog, light fog, sandstorm, sand blowing, floating dust and smog, the visibility is poor due to the influence of a large number of extremely fine dust particles or smoke particles floating in the air. When driving, traffic accidents may occur due to poor visibility. Haze is harmful to the human body after being inhaled into the human respiratory tract, and long-term severe inhalation will lead to death. So the foggy weather is coming, so we should do less outdoor activities. If we have to go out, we must wear masks. Open the window less and take more vitamins. These are all good ways to prevent smog!
How is this harmful smog formed? A large part of it is caused by ourselves. There are five reasons for this:
First, the main factors when the atmospheric pressure is low and the air does not flow. Because the air does not flow, the tiny particles in the air gather together and float in the air.
Second, the ground is dusty and the air humidity is low. People and vehicles on the ground stir up dust.
Third, automobile exhaust is the main pollutant emission. In recent years, there are more and more cars in cities, and automobile exhaust is a factor of smog.
Fourth, the secondary pollution produced by factories.
Five, the winter heating emissions of carbon dioxide and other pollutants.
Among them, 2345 are caused by us, so should we reduce these behaviors and contribute to the control of air pollution?
Now, there are too many cars in the city, and the exhaust emissions cause air pollution. We should advocate green travel, use public transport as much as possible when going out, and be able to ride bicycles to effectively reduce the degree of air pollution.
The motherland is our home, and we should protect it. Let's travel green and reduce exhaust emissions. Let our home be more beautiful!
800-word Argument on Smog (2)
"I can't see the dog when I walk the dog, and the dog rope is in my hand. Seeing the rope, I can't see my hand, and the dog told me to leave. "
This is the most famous statement about smog that we have heard recently.
When I get up in the morning, I open the curtains and look out the window. I feel blind. I can't see the blue sky and the long white clouds. There is chaos between heaven and earth, and everything is gray. Even the colorful buildings opposite have only hazy outlines.
Between us, smog has quietly enveloped the whole city.
Be fully armed before going to school every day, lest the smog be sucked into the lungs. But, what's the use?
Cars on the road are still belching out exhaust gas, and factories in the distance are also belching out black smoke. There are no trees on both sides of the road, and people are wearing white masks.
So, how did this disgusting smog come from?
Many of our families have cars, but when we are sitting in the car and ready to travel, the exhaust from the car is quietly contributing to the smog behind us.
In the remote suburbs of the city, some chemical plants are showing their talents, and the thick black smoke emitted day and night is slowly melting into the air.
On the first day of the Lunar New Year, colorful fireworks and crackling firecrackers filled the air with smoke, which became very turbid and the air quality dropped sharply. These are the main causes of smog. They have brought us quickness, convenience and pleasure, but they have also quietly brought us unexpected consequences.
In foggy days, we breathe turbid gas. Haze in the air can lead to diseases such as pneumonia. 1952, an invisible killer in London, England, took 4,000 lives in just five days and 8,000 lives in the next two months. It can be seen how powerful the smog is.
The smog is so serious, how to prevent it?
We should wear masks, eat light food and drink plenty of water when we go out. In foggy days, we should open the window less for ventilation. Vitamin d should also be supplemented appropriately. Come back from the outside, wash your hands, face and gargle. We must reduce outdoor activities. If you must exercise, you can do indoor exercise.
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. Cure smog, start with me.
800-word debate about smog (3)
The weather in the north is always foggy recently. When I got up in the morning, the beautiful scenery around me became very blurred, and the news frequently reported the serious consequences caused by the continuous appearance of haze weather. Haze weather has seriously affected the air quality in the north and affected people's normal life. Especially in Beijing, smog weather occurs almost every day. Beijing, which we call the capital, has become a foggy city!
In recent years, smog weather not only seriously affects air quality, but also is the main source of asthma and other diseases. The air in foggy days contains some tiny particles in the form of dust, which we can't see with the naked eye. These tiny particles are enough to make people get lung disease. They can be called invisible killers. So, what caused the smog weather? In fact, the haze weather is formed by automobile exhaust, cooking fume, smoke from smoking and fireworks, which leads to the appearance of haze weather.
Don't say that smog weather is a killer, not to mention that smog weather is terrible. In fact, the real killer is us humans. It is human beings who don't know how to protect the environment. It is human beings who want to destroy their homes, which causes smog weather. These are all human beings who eat their own fruits.
Of course, the current situation is irreversible, and we can still stop the smog weather. We can change the car to ride a bike; You can eat stew instead of cooking; You can quit smoking or put cigarette butts in the trash can after smoking; You can put less fireworks and firecrackers; You can also plant a variety of flowers and trees to purify the environment. Only by choosing a low-carbon life can smog weather be prevented. Sometimes, I really hope that what comes out of the car is not bad tail gas, but faint fragrance. What comes out of the chimney is not thick black smoke, but crystal dew. I really hope that our home will become greener and redder, and the songs of birds will be more beautiful and melodious.
I believe that only when we take action and start from ourselves can our dreams come true. Let's protect the environment, defend our homeland, make the smog weather no longer harm the world, and make our homeland better.
800-word debate about smog (4)
Dear Haze:
My eyes were white and I couldn't see anything clearly, as if I were in a foggy Penglai fairyland.
Hai Zi, I know it's you.
Your white smoking appearance has long left a deep impression on me. But I don't like you. I hate you very much.
Although you come from a scholarly family, your parents are famous. Mother Fog, who lives in the forest, is as beautiful as a fairy. The father who lives in the city has both a rough and heroic side and a gentle and careful side. But not only did you not inherit the beauty and gentleness of your parents, but you were also naughty.
Beijing has become your home. Early in the morning, just before dawn, the warm sunshine is preparing to wake up the sleeping earth. In an instant, the earth turned white again, as if covered with a white brocade. What's going on here?
I know, it's you, you cover the rising sun, warm sunshine and the vitality of the earth …
The whole Beijing hangs over you. You can't tell the boundaries between heaven and earth, and you can't see the roads, Woods and figures clearly. You're still proud, aren't you? Do you know the consequences?
There is an invisible ""in your body, which is made of dust in the air. People who suck your huge body will do harm to their own bodies, especially children and the elderly. Smoking too much will cause cancer and upper respiratory tract infection. Also, you cover the streets and lanes, which is very prone to traffic accidents.
Fortunately, Beijingers are nice and know how to avoid you: 1. Try not to go out and open the window. 2. Be sure to wear a mask when going out. Don't drive to avoid traffic accidents. And other safety awareness.
How many people can't live a normal life because of your pranks? So everyone hates you, even you. You make their families sick, you make them unable to breathe fresh air, and you make them live in disastrous weather phenomena forever …
I hope you can turn over a new leaf and become as beautiful as mother fog and as gentle as father fog. Go where you should go, find a world that belongs to you, and stop disturbing our lives.
Goodbye! We will always remember you.
800-word debate about smog (5)
"Smog red warning, Nanjing primary and secondary schools are closed today"
"what! Wow! Great! " Hearing this sentence, the whole class was boiling. But some people still don't believe their ears. They ran to the classmates who saw the exciting news with a newspaper, stared at the words in the newspaper for a long time, and finally cheered again.
But I'm not happy at all when I hear the news.
Haze, worthy of the name, is the floorboard of fog and haze. But fog and haze are not the same substance, and there is a big difference.
Haze is haze, that is, some dust and debris in the air are mixed together. From a distance, Huangshan looks like a sea of clouds, which makes people mistakenly think that they are in the clouds. However, smog is different from clouds after all, and its harm is not small. As you can imagine, if the road is muddy, traffic accidents are inevitable. People inhaling those harmful substances is also harmful to their physical and mental health. There are many levels of smog, including mild smog, mild smog, moderate smog and severe smog. After watching the news, I found that the city of Shanghai was shrouded in fog, but it was only moderately hazy. This shows that if it was a severe smog at that time, what shocking things would happen in that gray dark scene.
As for fog, it often appears in our Nanjing area. It is formed by the liquefaction of water vapor in the air when it is cold and suspended in the air layer near the ground, just like the clouds on the ground, it is white. According to the different characteristics of fog, fog can be divided into many types, including radiation fog, advection fog, evaporation fog, smoke and so on. Of course, its harm is not small. Unknown substances floating in the air can cause symptoms such as colds and asthma. It's hard for me. I've been catching a cold and coughing recently.
Fog and haze are difficult to separate, which is good. This time, Nanjing caused smog! Su Shi, a great poet, will sigh when he encounters smog, not to mention those students who can only listen to the school arrangement eagerly.
Haze is a big part of our life, which combines all the characteristics of fog and haze and is more harmful to human body. We all know cancer, which is an incurable disease that makes people talk about cancer. Smog can really cause cancer-smog, which consists of a lot of dust, impurities, toxic particles and municipal waste gas, will cause some diseases if it is inhaled frequently, and cancer is of course the "number one predator" among these diseases.
Of course, the formation of smog is also inseparable from the "credit" of people in life! For example, the tail gas emitted by vehicles, a large number of harmful gases emitted by factories when producing things, and many roads are dusty, but the relevant departments never arrange people to clean them up.
If people don't pay attention to this, maybe smog will come and become a "natural law."
Here, I hope my dear students will do a good job in maintenance and cleaning in time, and wait for the good news of going home after the smog counterattack.
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