How to write a composition about air pollution

1. How to write the composition of air pollution

Air pollution

We live in a reinforced concrete forest, and we are far away from the vibrant trees. Nowadays, vehicles, buildings or complicated machinery all bring great pollution to the air. Although they all bring us convenience, have you ever thought that they will also pollute the air and do harm to the human body?

At this moment, some scientists have developed and invented many articles and machines that can purify the air. People can use these things to suck away harmful objects in the air, and then discharge fresh air to make it fresher. But we humans can't rely on these tools. It's not that we can cut down trees indiscriminately 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 in a smoky earth; Without trees to maintain the ecological environment, animals will gradually become scarce ... so no matter how many machines are used. Look, the air pollution is so severe now, and everyone has heard of "air pollution, global warming"! If the air pollution is too severe, 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 vast sea, 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 take action. 2. Play your imagination. How to write an essay on air pollution

Nowadays, the pollution in our city should be more and more serious, and our once green home is gradually disappearing. It is precisely because of this that we should stop these pollution sources.

I think the most serious problem now is air pollution. There is a slogan that says "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 fumes add a touch of black to our city.

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 released by 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, there is air pollution that is invisible to our naked eyes 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 the number of trips by car, preferably by bus, by bike or even on foot. If there are dozens fewer cars 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 breathing. In this way, the air pollution in our city will also be gradually reduced.

So, 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 our city truly become a healthy and pollution-free city and a real green home. 3. How to write the composition title about air pollution

No fireworks, * * Build a beautiful blue sky

No fireworks, but I will return to 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 and affect all aspects of our lives.

Although setting off fireworks is a happy thing, it will also cause great harm. First of all, the carbon dioxide, metal particles and other substances produced by fireworks and firecrackers will cause the air pollution index to exceed the standard seriously. Such polluted air, people breathing for a long time, back to 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 suffering from old thrombosis, coronary heart disease and heart disease, it causes great harm. Even threaten the lives of these patients.

The discharge of fireworks and firecrackers will increase the air pollution index, reaching pm2.5. It is said that in 212, in winter, as the temperature dropped, more people used 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. As a result, the air pollution index in off the charts was 25, which shows how much fireworks and firecrackers have affected the air.

Setting off fireworks and firecrackers will also cause huge economic losses and waste huge social resources. Shooting can cause casualties and fire. According to statistics, in Beijing in 25, 551 people were injured by shooting, 5 people died and 378 fires were caused. Although the safety accidents caused by setting off fireworks and firecrackers in Beijing are on the decline, we should also guard against them. Resolutely resist setting off fireworks and firecrackers.

Therefore, we should not set off fireworks and firecrackers, 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. In this way, we can have a safe and comfortable living environment and a clear blue sky. 4. how to write the composition of air pollution investigation report

everyone? Aware? The environment? Seriously damaged? Cutting down trees indiscriminately, polluting water and air, destroying ecological environment and so on. Countless facts? Environmental protection is urgent. Protect the environment? Yes? And? The responsibility of? The responsibility of "arch" citizens.

these days, I? How polluted is the air? The harm of air pollution to human health? The investigation. Me? What are the environmental characteristics and places of Zhuhai? Yes, surfing the internet? The investigation. From the investigation? Come on,? Our air is polluted by

. Black smoke from the chimney of the main factory of pollution source, tail gas from motor vehicles. ? Pollution source discharge? Yes? What about pollutants? Right. Health? What about the harm? I looked it up? Information, understand? Knowledge of air pollution. The main pollutants in

are carbon monoxide, carbon dioxide, sulfur dioxide and nitrogen oxides. Particulate matter. If the content in the air exceeds? The standard,? Harmful to health. The air pollution index is less than 5, 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 The air pollution index is greater than 5 and less than 1, which indicates air quality? The concentration of pollutants is less than the second-level standard limit in the ambient air quality standard, which is Grade II, and meets the requirements of urban residential areas, commercial traffic residential mixed areas, cultural areas, and? Air quality in districts and rural areas.

to prevent pollution, what is the pollution discharge? Air quality? Measures, the main ways are: layout, do a good job in environmental planning

? Energy structure, promotion of clean fuel and use of clean production technology. Pollutant discharge strengthens energy conservation. Energy? Rate, region? Heating and heating strengthen environmental supervision and management and the treatment of old pollution sources, and implement total discharge and discharge up to standard? Vehicle exhaust emissions, etc.

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

(1) Three-dimensional greening. Green area, can engage in soilless culture. Plants are filtered? The function of toxic and harmful pollutants and air purification is particularly remarkable in forests. Afforestation is to prevent pollution? Measures.

(2) To solve the fuel problem, try to use energy sources with no pollution or little pollution such as solar energy.

(3) organize more publicity activities and consultation activities. Environmental awareness.

(4) organize classmates? Pick up garbage in streets, markets and squares on weekends. Clean environment. 5. How to write the composition topic about air pollution

Find the problem:

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. Therefore, some people say that a garden with a certain scale is like a natural "oxygen bar" that keeps working, which can provide the fresh air we need. But in recent days, I found that my natural "oxygen bar" went on strike. Every morning when I went to the yard, I couldn't breathe the fresh air again. What's going on here? What made my natural "oxygen bar" stop working? I made up my mind to find out the murderer!

Investigation and research results:

In view of the above incidents, I consulted a large number of materials and comprehensively observed flowers and leaves for several days, and found that the most suspect was the frequent traffic of vehicles in recent days, which caused serious air pollution. In addition, the lampblack emitted by some nearby food shops could not be effectively dispersed because of the weak wind recently, and was absorbed excessively by flowers and leaves, causing the stomata on the surface of leaves to be blocked by dust particles, so that they could not ". I consulted my nature teacher, who thought this possibility was very high, and asked me to go home and try it. So I went back to collect some samples of flowers and plants, planted them indoors, regularly exposed them to sunlight, and the watering times were encrypted. After a few days, compared with others, I found that those flowers and plants that I took good care of grew much better than those outside. According to my experimental results, I encrypted the number of watering times to three times a day. After more than a week of painstaking efforts, the "natural oxygen bar" finally resumed its normal work and provided us with fresh air every day.

Research conclusion:

Based on the above, 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, so that the stomata used for photosynthesis in flowers and plants and leaves were blocked, and their functions were overloaded and stopped working. I finally caught this "murderer"!

Thinking after the research:

Through this survey, 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 6 million hectares of virgin forests around the world face! They have no one to water them, and they have to endure the pain brought by human beings. When people enjoy 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 ocean. 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 "temperature regulators" to be destroyed. By that time, I won't be the only one out to investigate. Let's act together to prevent these murders! 6. Ask for an essay about air pollution < P > Now there are many places where air pollution is very serious. Like Linfen, Yangquan, Datong and other places, the sky has become gray, and the blue sky is rare. Sometimes even breathing feels like my throat is blocked. In 24, the State Environmental Protection Administration evaluated the domestic urban environment. Linfen, where we live, ranked first among the 1 most polluted cities in China for two consecutive years. At present, although Linfen City has achieved the goal of improving governance in 25 ahead of schedule, the number of days with air quality of Grade II and above is only 181, and local residents still can't breathe good air for half of the year. So what are the causes and hazards of air pollution?

I have learned a lot by consulting materials and asking others. The main causes of air pollution are automobile exhaust, burning articles and mining minerals. 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 with cleaner natural gas will also produce carbon dioxide, which will warm the climate. Living in an environment with polluted air for a long time will cause asthma, wheezing and other diseases, which will endanger life. 7. Composition of air pollution < P > 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 do not 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 was filled with 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 life at home. In the background of the photos, I saw that the sky in Wan Li was cloudless, and there were few motor vehicles of all kinds on the road. At that time, people's means of transportation were mainly buses, and the environment was really much better than now.

Now there are more cars in my hometown, and thousands of cars are driving on the road every day. The exhaust 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, and these gases are suspended over the city and it is difficult to dissipate. There are still a lot of carbon monoxide and carbon dioxide in the exhaust gas of cars, which are harmful to human body. If they are inhaled by people, they will cause many diseases in the lungs. No wonder when I go to school every morning, the sky is always gray. It is difficult to see the rising sun in the morning. There is no rainbow in the sky after the rain, and the deep blue sky disappears. Even the chirping 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 …".

Do you know that she is crying in Dalian? She is crying that people have hurt her and destroyed her, making her beautiful face so ugly. I suggest that families with cars should reduce the use of vehicles and try to walk or take buses, so as to make our city air fresher.

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