How to write a composition about air pollution

1. How to write air pollution in the composition of air pollution?

We live in a reinforced concrete forest, far away from the vibrant trees. Nowadays, vehicles, buildings or complex machinery have brought great pollution to the air. Although they have brought us convenience, have you ever thought that they will also pollute the air and be harmful to human body?

At this time, some scientists have developed many articles and machines that can purify the air. People can use these things to absorb harmful substances in the air, and then discharge fresh air to make it fresher. But we humans cannot rely on these tools. It's not that we can chop down trees with these tools. Because every tree is very important to us, without big trees to protect the soil, the soil will be washed away by the river; Without trees to beautify the environment, people will live on the smoky earth; Without trees to maintain the ecological environment, animals will gradually become scarce ... so no matter how many machines are used. You see, the air pollution is so serious now that everyone has heard of "air pollution, global warming"! If the air pollution is too serious, the earth will gradually warm up, then the glaciers in the Antarctic and the Arctic will melt and our homes will be submerged, so that the whole earth will be a sea of Wang Yang, and we will float on the sea like a myth. Therefore, it is very important for us to purify the air. We should plant more trees to make the air fresher.

Let's plant trees together, protect the beautiful nature, care for every grass and tree and increase the oasis in the desert. Let's act.

Now the pollution in our city should be more and more serious, and our once green home is gradually disappearing. That's why we should stop these pollution sources.

I think the most serious problem now is air pollution. There is a slogan "Smoking is harmful to health", but most people still smoke today. Smoking not only harms people's health, but also harms the health of the environment. These smog add a touch of black to our city.

Looking around, what can be seen everywhere in the street? It's all kinds of cars! Nowadays, most people have their own cars, but the exhaust gas from various cars pollutes the city. You can imagine how many cars pass by the road every day and how much car exhaust will gather in the air, but the air will be polluted.

Around us, air pollution is invisible to the naked eye everywhere, and they all dominate our whole city.

Of course, we have to take some measures to deal with these stubborn air pollution sources. First of all, we can do a publicity campaign about "smoking is harmful to health" and make suggestions to people to smoke less or even not. Then, we should try to reduce driving trips, preferably by bus, bike or even on foot. If dozens of cars are less on the road every day, the air pollution in our city will gradually weaken. Finally, we need to advocate more afforestation. Trees can absorb some harmful gases in the air and produce new pure substances for human to breathe. In this way, the air pollution in our city will gradually decrease.

Therefore, from today, from now on, each of us should be a pioneer in environmental protection. We should fight against air pollution together. We should defend our city and make it a healthy, pollution-free city and a real green home. The United States imports Puweixin Tmall

3. How to write the essay topic about air pollution: How to build a beautiful blue sky without fireworks?

Don't set off fireworks, give me a clear blue sky.

The new year has come again. On New Year's Eve, we will hear deafening firecrackers, but setting off fireworks will do us all kinds of harm, which is related to all aspects of our lives.

Although setting off fireworks is a pleasure, it can also cause great harm. First of all, carbon dioxide, metal particles and other substances produced by fireworks and firecrackers will cause the air pollution index to exceed the standard seriously. With such polluted air, people breathe for a long time and suffer from bronchitis, pneumonia, emphysema and other diseases. Other large firecrackers and fireworks will make a lot of noise, which will damage people's physical and mental health. Especially for some elderly people with old thrombosis, coronary heart disease and heart disease, it does great harm. Even threaten the lives of these patients.

Setting off fireworks and firecrackers will increase the air pollution index, reaching pm2.5. It is said that in the winter of 20 12, as the temperature drops, more people use honeycomb coal stoves to keep warm. At that time, the air pollution index exceeded the standard, and the National Meteorological Administration issued a yellow warning for haze weather. In China, Beijing, Shanghai and other densely populated and economically developed places. Is the place with the highest pollution index. China Meteorological Bureau conducted an air index test in a place where fireworks and firecrackers were set off intensively. Results The air pollution index in off the charts is 2500, which shows how much fireworks and firecrackers affect the air.

Setting off fireworks will also cause huge economic losses and a huge waste of social resources. Shooting will cause casualties and fire. According to statistics, in 2005, 55 1 person was injured by shooting in Beijing, 5 people were killed and 378 fires were caused. Although the safety accidents caused by fireworks in Beijing are on the decline, we should also take precautions. Resolutely resist setting off fireworks and firecrackers.

Therefore, we should not set off fireworks, because the harm it brings to us cannot be underestimated. If we continue to set off fireworks and firecrackers, it will cause irreparable consequences. So, from now on, let's not set off fireworks. Only in this way can we have a safe and comfortable living environment and a blue sky.

4. How to write the composition of the air pollution investigation report? You realize that? Environment? Seriously damaged? Deforestation, pollution of water and air, destruction of ecological environment and so on. Countless facts? Environmental protection is urgent. Protect the environment what's up And then what? Responsibility? "Arch" is the responsibility of citizens.

These days, I? How serious is air pollution? The harm of air pollution to human health? Investigation. Me? What are the environmental characteristics and places of Zhuhai? Yes, online? Investigation. From the investigation? Come on? Air is affected by the following factors

Pollution. Pollution sources are mainly black smoke from factory chimneys and tail gas from motor vehicles. ? Pollution source discharge? what's up What about pollutants? That's right. Healthy? What about the harm? I checked, okay? Information, understand? Knowledge of air pollution.

The main pollutants are carbon monoxide, carbon dioxide, sulfur dioxide and nitrogen oxides. Particulate matter. If the content in the air exceeds? What about the standard? Harmful to health. The air pollution index is less than 50, which means that the concentration of air and pollutants is less than the first-class standard limit in the Ambient Air Quality Standard, which is first-class excellent and meets the requirements of protected areas and scenic spots? Air quality that needs special protection Air pollution index is greater than 50 and less than 100, which means air quality? The concentration of pollutants is less than the second-class standard limit in the Ambient Air Quality Standard, which is Grade II, and meets the requirements of urban residential areas, commercial traffic and residential mixed areas, cultural areas, and? Air quality in various districts and rural areas.

Pollution prevention, what is sewage discharge? Air quality? Measures, the main ways are: layout, environmental planning.

? Energy structure, promotion of clean fuel and use of cleaner production technology. Pollutant discharge strengthens energy saving. Energy? Rate, region? Heating and heating Strengthen environmental supervision and management and control of old pollution sources, and implement total discharge and discharge up to standard? Automobile exhaust emissions, etc.

Zhuhai is? Her home should be built better. But what about air pollution? Seriously, what should I do? I suggest:

(1) engage in three-dimensional greening. Green areas can be soilless cultivated. Plant filtration? Toxic and harmful pollutants and air purification functions are particularly significant in forests. Planting trees is to prevent pollution? Measures.

(2) Solve the fuel problem, and try to use energy with no pollution or less pollution, such as solar energy.

(3) Organize publicity activities and consultation activities. Environmental awareness.

(4) Organize classmates? Pick up rubbish in streets, markets and squares on weekends. Clean environment.

5. How to write a composition about air pollution and find problems;

Planting some flowers and plants in the garden can not only beautify our home, but also purify the air around us and make the air we breathe fresher. So some people say that a garden with a certain scale is like a natural "oxygen bar", which can provide the fresh air we need without stopping working. But in recent days, I found that my natural "oxygen bar" went on strike. I can't breathe fresh air when I go to the yard every morning. What's going on here? What makes my natural "oxygen bar" ineffective? I'm determined to find the murderer!

Findings:

In response to the above events, I consulted a lot of information and made a comprehensive observation of flowers, plants and leaves for several days. What I found most suspicious was the frequent traffic in recent days, which caused serious air pollution. In addition, due to the recent weak wind, the oil fume emitted by some nearby food stores can not be effectively dispersed, and it is excessively absorbed by flowers and leaves, resulting in the pores on the surface of leaves being blocked by dust particles and unable to "work". I consulted my science teacher, and he thought it was very possible. Let me go home and have a try. So I went back to collect some samples of flowers and plants, planted them indoors, basked in the sun regularly, and watered them encrypted. A few days later, compared with others, I found that the flowers and plants I carefully cared for grew much better than those outside. According to my experimental results, I encrypted the watering times to three times a day. After more than a week of painstaking efforts, the "natural oxygen bar" finally resumed normal work and provided us with fresh air every day.

Research conclusions:

To sum up, I come to the conclusion that the "natural oxygen bar" stopped working because of the increasingly serious air pollution around it, which made flowers and plants absorb excessive carbon monoxide, hydrocarbons, nitrogen oxides and suspended particles in the air, blocked the stomata used for photosynthesis in flowers and plants and leaves, and stopped working because of overload operation. Finally caught this "murderer"!

Thinking after research:

Through this investigation, I am very happy to find out the "real murderer". At the same time, I can't help worrying about the future of mankind: my garden is already like this, and what challenges will the 600 million hectares of virgin forests around the world face! They have no one to water them, and they have to endure the pain caused by human beings. When people are enjoying the fruits of nature, have they ever thought about nature-the mother of human beings is suffering from infinite pain? As we all know, there are three important factors in the environment of human life: atmosphere, land and sea. But who would want to know that these three environmental factors on which human beings depend are being destroyed bit by bit by some unscrupulous businessmen! I don't want these "natural oxygen bars" and "thermostats" to be destroyed. By then, I won't be the only one out to investigate. Let's act together to stop these murders!

6. Ask for a composition about air pollution. There are many places where air pollution is very serious now. Like Linfen, Yangquan, Datong and other places, the sky has become gray, and the blue sky is rare. Sometimes I feel my throat is blocked even when I breathe. In 2004, the State Environmental Protection Administration evaluated the domestic urban environment. Linfen, where we live, ranks first among the most polluted cities in China 10 for two consecutive years. At present, although Linfen City has achieved the improvement goal in 2005 ahead of schedule, the days of air quality level II and above are only 1 and 8 1, and local residents still can't breathe good air for half a year. So what are the causes and hazards of air pollution?

By looking up information and asking others, I know a lot of knowledge: the main causes of air pollution are automobile exhaust, burning goods, mining minerals and so on. The most serious thing is mining minerals. Most cities have some mineral resources. In the refining process, carbon monoxide, total suspended particulate matter, sulfur dioxide and other substances harmful to human health will be produced. The harm of automobile exhaust is well known, but burning cleaner natural gas will also produce carbon dioxide, which will warm the climate. Living in an air polluted environment for a long time will lead to asthma, wheezing and other diseases, which are life-threatening.

Everyone knows that we should reduce air pollution, but many people just pay lip service and don't practice at all! Do you know the harm of air pollution? Do you know what kind of future we will face if we don't reduce air pollution?

My hometown Dalian is a beautiful city. According to my father, Dalian used to be a city with beautiful environment and fresh air. The air is full of the smell of the ocean. After the rain in summer, you can often see beautiful rainbows hanging on the horizon like colorful bridges. I have seen many photos of my father's childhood at home. In the background of the photo, I saw that the sky in Wan Li is cloudless in Wan Li, and there are few motor vehicles on the road. At that time, people's means of transportation were mainly buses, and the environment was really much better than now.

There are more cars in my hometown now, and thousands of cars are driving on the road every day. The exhaust gas emitted by these cars not only damages the environment, but also harms people's health. I heard on the radio that the exhaust gas emitted by cars has warmed our city. These gases are suspended over the city and it is difficult to dissipate. There are also a lot of carbon monoxide and carbon dioxide in automobile exhaust, which are harmful to human body. If inhaled by people, it will lead to a variety of lung diseases. No wonder the sky is always gray when I go to school every morning. It's hard to see the rising sun in the morning. There was no rainbow in the sky after the rain, and the deep blue sky disappeared. Even the twittering birds don't want to come to such a place. Only in children's songs can there be a scene of "the sun shines in the sky, flowers smile at me and birds say …".

You know, Dalian, she is crying. She is crying that people hurt her, destroy her and make her beautiful face so ugly. I suggest that families with cars use less cars and try to walk or take buses to make our city air fresher.

All of us should clearly know the harm of air pollution, and then act quickly to protect our living environment so that air pollution does not harm our homes! Protect our homeland, starting from you and me, starting from now, starting from the little things around us!