英语作文空气污染范文(汇总20篇)

with the improvement of our living standard, more and more people can afford a car. as a result, our roads are more often than not crammed with cars. however, with more and more waste gas being discharged by the cars, the problem of air pollution becomes even more serious. so nowadays we advocate to lead a low-carbon life.

my suggestion is we should ride bikes more often instead of driving cars.by riding a bike, we can not only exercise our body but also protect our environment. why not have a try, my dear friends?

与我们的生活水平的提高,越来越多的人都买得起汽车的.因此,道路往往没有堆满了汽车.然而,随着越来越多的废气排放是汽车、空气污染问题变得更加严重.所以现在我们提倡过低碳的生活.

我的建议是我们应该更经常骑自行车而不是开车骑一辆自行车,我们不仅能锻炼身体,也能保护我们的环境.为什么不试试,我亲爱的朋友?

我的家乡——大连，是座美丽的城市。听爸爸说，以前的大连是个环境优美，空气清新的城市，空气中到处弥漫着海洋的味道，夏季的雨后，经常能看到美丽的彩虹如七彩桥一般挂在天边。我在家里看到过很多爸爸小时候的生活照片，在照片的背景中，我看到天空万里无云，马路上很少有各式各样的机动车，那时人们的交通工具主要就是靠公共汽车，环境确实比现在好多了。

现在家乡的车辆增多了，每天都有成千上万辆汽车行驶在马路上，这些汽车排放的尾气，不仅破坏了环境，同时也危害了人们的身体健康。我听广播说，汽车排放出的尾气使我们的城市变暖了，而且这些气体悬浮在城市上空很难消散，汽车尾气中还有大量的一氧化碳和二氧化碳，这些气体都是对人体有伤害的，如果被人们吸到体内，就会引起肺部的很多疾病呢。怪不得每天早上我上学的时候，天空中总是灰蒙蒙的一片，很难看到早上初升的太阳，雨后的天空中也没有彩虹，湛蓝深远的天空消失不见了，就连叽叽喳喳的小鸟也不愿意来到这样的地方，只有在儿歌中才有“太阳当空照，花儿对我笑，小鸟说……”的景象。

你知道吗，大连她在哭泣，她哭人们这样伤害她，破坏她，把她原本美丽的面貌变成了这样丑陋。我建议有车的家庭要减少车辆的使用，尽量步行或坐公交车，这样才能让我们的城市空气更清新。

让我们行动起来吧!美化环境，从我做起，从现在做起!

In the past few decades, our Earth has changed a lot, but to the bad

direction. Among these changes, the air pollutions resulting from a huge number

of automobiles and coal-burning is almost the severest. The severe air pollution

alarms humans of the heavy load we have exerted on Earth by our insatiable

production and usage of automobiles. However, with the deepening of

urbanization, more cars are needed, which will make the air pollution worse.

Therefore, the following actions should be taken. First, we should apply the

most cutting-edge technologies in order to adopt new forms of energy as

substitutes for fossil fuels. Second, try hard to develop possible

transportation means, which are enviromental friendly. So that the citizens can

reduce the dependence on cars. In short, our humans should take responsibilities

for the air pollution and have to find ways to solve this problem.

​导语：现阶段环境污染愈加严重，下面是yuwenmi小编为大家整理的优秀英语作文，欢迎阅读与借鉴，谢谢!

THE citys meteorological observatory issued a white warning sign Thursday indicating the citys weather could be influenced by a tropical sand storm in the next two days.

The meteorological observatory in Beijing said the storm could hit the city.

"Coastal areas in eastern Beijing could have winds as strong as force 8," the observatory said.

The air quality will become rather terrible with the sand storm.

The wind and sand will cause the city pulluted.

Terrible sand storm!

【参考译文】

星期四，该市气象台发布了一个白色预警信号，表明该城市的天气可能在未来两天受到热带沙尘暴的影响。

北京气象台说，风暴可能袭击该市。

天文台说：“北京东部沿海地区的风力可能比8级强。”。

沙尘暴将使空气质量变得相当糟糕。

风和沙将导致城市污染。

可怕的沙尘暴!

Pollution is harmful to human beings. Polluted water causes many kinds of diseases such as diarrhea, enteritis, etc. And sometimes these diseases even take man’s life. Dirty air or air-borne garbage causes stinging eyes and running nose. Pollutants are destructive. They cause runs in nylon stockings and crack rubber tires and they eat away at stone and rust iron.

Measures have been taken to control pollution. In recent years, legislative steps have been introduced to control pollution. Rivers are being cleaned. Air is purified, and pollutants are being trapped before they are poured out of chimneys.

However, pollution problems have not been completely solved. Pesticides are widely used almost everywhere. They pollute soil, water and food. They have the power to make our streams fishless and our gardens and woodlands silent and birdless. Some factories are still using air as a dumping place for wastes. Some lakes are still dirty. Quite a few chimneys are still pouring smoke into air and noise pollution remains serious.

Today， pollution has become a serious problem to us. It means that the air， seas， rivers and land are polluted by waste or poisonous things. It does harm not only to human beings but also to animals (It does harm to animals， as well as human beings.)。

We cannot have fresh air because many factories have the poisonous smoke sent into the air. Beautiful parks are made dirty by plastic tins and bags. Fish die from the polluted water. It is said that strange diseases have appeared in some places because of pollution.

I hope scientists can find ways to solve the serious problem. We are looking forward to seeing the clear sky， clean rivers and beautiful parks again.

由于私家车将会有更多的污染。一旦汽车起动,它释放大量的脏气和热量，这会导致很大的污染和温室效应。以下内容是小编为您精心整理的英语作文汽车环境污染，欢迎参考！

英语作文汽车环境污染一

In general, there are two ways of traveling, private cars and public transportation. Chinese people should regard public transportation as their first traveling opinion.

一般来说,有两种旅游方式，私家车和公共交通工具。中国人应该把公共交通工具作为旅游的第一选择。

First, there are so many people living in this countries that make it so crowded. If each chinese people own a car, there will be far more traffic jams and accidents, which increase you impatience.

首先,这个国家住着很多人，使得它非常拥挤。如果每个中国人都拥有一辆私家车，将会有更多的交通堵塞和事故，这会让你变得更加的不耐烦。

Moreover, there will be far more pollution resulted from cars. Once a car started, it release huge amount of dirty gas and heat, which lead to great pollution and result in green house effect.

再者，由于私家车将会有更多的污染。一旦汽车起动,它释放大量的脏气和热量，这会导致很大的污染和温室效应。

All in all,Chinesepeople should take public transpotation into consideration first。

总之，中国人应该以公共交通工具为第一选择。

英语作文汽车环境污染二

Too many cars have caused a lot of serious problems in our world. Besides congestion, accidents and fast fuel consumption, cars are responsible for a good part of air pollution in big cities. One possible solution is to design and develop clean cars and clean fuels. In Shanghai, some of the public buses begin to run on natural gas, which does not give off as much carbon dioxide as petrol. Another solution is to develop modern public transportation systems and restrict the use of private cars. If the price of petrol rises constantly and the public vehicles are efficient and convenient enough, most people will not buy private cars. Thus, the total number of cars in big cities will reduce greatly. On the whole, the elimination of air pollution needs the collective efforts from the government, the public and the environmentalists.

In the 21st century, humans science economic development has reached a very high level. But I want to ask: do you have any aware of human activities on the environment will be what kind of impact?

The deforestation of the forest is not a serious problem? According to the survey the world forest area is in at an annual rate of millions of hectares of disappear. Caused a lot of water and soil loss, make many areas become desert. Scope of human activities in the declining, its not scary?

What human besides destroying forests, dont damage the environment problems? It is not. Now, we should see the seriousness of water pollution. At present, 60% of the country in the world face the shortage of water, 20% of the population is difficult to get clean water, 51% of the people do not have access to sanitary water. This is caused by what? Is, that we are causing ourselves now factories and sewage in our life, not by processing is out. This is not proof of that? According to research, each 1 cubic meter of sewage discharge, 14 cubic meters of natural water pollution. Think of it, this is what a terrible number?

In the discharge of smoke in the factory, we dont know the smoke is atmospheric pollution? Scientists have found that there are at least 100 species of air pollutants produced great harm to the environment, directly affect peoples health.

Do we want to live in such an environment? Certainly dont want to; Then let us use action to prove it! We can start from me, start from now, start from the side. Love nature, the consciousness of environment protection! To do propaganda environmental protection angel! Lets take action to protect the environment

在21世纪的今天，人类的科学经济发展已经达到了很高的水平。然而我想问：你们有没有意识到人类的活动对环境会造成怎样的影响呢?

森林的乱砍滥伐不就是一个严峻的问题吗?据调查全世界森林面积正以每年上千万公顷的速度在消失。造成大量的水土流失，使许多地区成为沙漠。人类的活动范围在不断减少，这不可怕吗?

人类除了破坏森林之外，难道就没有什么破坏环境的问题了吗?不是这样的。现在我们应该看到水污染的严重性，目前世界上60%的地区面临供水不足，已有20%的人口难以得到清洁水，51%的人无法得到卫生用水。这是什么造成的呢?是我们人类自己造成的，现在的工厂及我们生活中的污水，没有通过处理就排出去。这不是最好的证明吗?据研究，每排放1立方米污水，就污染14立方米天然水。想一想，这是多么可怕的数字?

在工厂排出的浓烟里，我们不知道浓烟是污染大气的吗?科学家发现，至少有100种大气污染物对环境产生极大危害，直接影响人们的健康。

难道我们想在这种环境中生活吗?当然不想;那让我们用行动来证明吧!我们可以从我做起，从现在做起，从身边做起。树立爱自然、爱护环境的意识吧!来做宣传环保的使者!让我们一起为保护环境行动起来吧

导语：近年来我国多地雾霾天气不断增多，极大地影响了人们的健康与生活。下面是yuwenmi小编为大家整理的相关作文，欢迎阅读与借鉴，谢谢!

With the broadcast of smog,this long-standing environmental problems,become the hot discussion once again.According to some reports,the frequent appearances of smog obscure the clarity of the sky recently.Some people drove slowly on the road because they could not see clearly. They also suffered from many illnesses caused by smog.

Smog is the general expression of various higher-than-permitted suspended particulate matter (such as PM2.5) in the atmosphere,which express the state of air pollution .It contains fog and haze,both of them are disastrous weather. Fog consists of a large number of tiny water or ice crystals.Its actually a harmless natural phenomena that makes visibility worse .Haze is air pollution in which is mixed up with dust, smoke and other dry particles. The components that make up haze may have negative effect on peoples health, especially for children and the old.

So its necessary to find out the reason why leads to smog and work out the resolution.If we trace the cause for smog weather ,the main points are natural causes that include windblown dust and manmade causes which include three aspects.Firstly,china s air quality standards are rather lax and evaluation factors are limited.Secondly,some enterprises just go for economic interests instead of observing relevant law and regulations.Obsolete equipment、industrial fuel burning and manufacturing operations are high likely to emit much wasted air.Thirdly,across our society ,relevant protection awareness has not built up.Just for the sake of convience to go out,people rely more and more on travelling and working by car while car is the main cause for smog.

To settle this problem,a series of meaures should be taken as follows.Primarily,we should establish a sound control system of smog. Not only can environmental protection departments strengthen air monitor,but government should enact more strict laws and regulations.Moreover,Reduce pollution sources is the fundamental solution to cut air pollutants. For example,we can reduce the amount of fuel vehicles or close down high polluting enterprises.Developing green and energy-saving energy can lower the emission of smog.Last but not least, People should do personal protection.They need to reduce the time for outdoor sports and pay attention to rest in smog days.Everyone all over the country should take measures to reduce the smog weather. We can use more public transport such as the bus and the underground so that the number of cars will be limited.Also,people should plant more trees. As far as Im concerned ,if we work together to do such measures ,smog weather will vanish completely and we will get clear and blue sky.

【参考翻译】

随着烟雾的传播，这个长期存在的环境问题再次成为人们讨论的热点，据一些报道，烟雾的频繁出现模糊了最近天空的清晰度，有些人因为看不清楚而在路上缓慢行驶。他们也遭受了许多由烟雾引起的疾病。

烟雾是大气中各种高达允许悬浮颗粒物(如PM2.5)的普遍表现，它表示大气污染的状态，含有雾和霾，两者都是灾害性天气。雾由大量的细小的水或冰晶组成，实际上是一种无害的自然现象，它使能见度变得更糟。Haze是空气污染，它与灰尘、烟雾和其他干粒子混合在一起。构成雾霾的成分可能对人们的健康产生负面影响，特别是对儿童和老年人。

因此有必要找出原因，导致烟雾和工作的决议。如果我们追溯雾霾天气的成因，主要是自然原因，包括风沙和人为原因主要有以下三个方面：首先，中国的空气质量标准是相当宽松的评价因素是有限的。其次，一些企业只是去代替观察相关的法律和法规的经济利益。设备陈旧、工业燃料燃烧和生产经营高可能发出多浪费空气。然后，在我们的社会中，相关的保护意识还没有建立起来。只是为了方便出门的缘故，人们越来越依赖旅行和工作的汽车，而汽车是主要原因烟雾。

为了解决这个问题，应采取一系列措施如下。首先，我们应该建立一个健全的烟雾控制系统。环保部门不仅要加强大气监测，而且要制定更加严格的法律法规，减少污染源是减少大气污染物的根本途径。例如，我们可以减少燃料量或关闭高污染企业，发展绿色、节能的能源可以降低烟雾排放。最后但并非最不重要的，人们应该做好个人防护。他们需要减少户外运动的时间和关注在烟雾天休息。全国各地的人应该采取措施减少烟雾天气。我们可以使用更多的公共交通工具，如公共汽车和地铁，这样汽车的数量将是有限的，人们也应该种植更多的树。就我而言，如果我们共同努力，采取这样的措施，烟雾天气将完全消失，我们将得到明确和蓝天。

Scientists are finding ways to stop air pollution especially in big industrial areas and densely-populated cities. They are studying new ways of generating electricity that may be less damaging to the environment. In the meantime, many power plants are being modernized to give off less polluted material. Also, engineers try to design and locate new power plants to do minimum damage to the environment.

However, it may be that we still have a long way to go before we have a clean world. Nearly all of the countries are trying hard to prevent and control air pollution. There indeed seems to be no end to tasks that environmentalists will be required to do. People will continually find new ways to control pollution

harmony with the environment is that we live in on earth, who is a natural son, and not only to natural persons as the conqueror, as we all know, there is only one earth and the mountains on earth. .harmony with the environment is that we live in on earth, who is a natural son, and not only to natural persons as the conqueror, as we all know, there is only one earth and the mountains on earth, the animals. plant human cells, if it damaged, destroyed nature organizations, to the eradication of mankind. therefore, the environment must be linked with social ethics, character education and practice acts as an important element of it. everyone must fulfil its responsibilities and obligations to protect the environment

人与环境是和谐相处的,我们生存在地球上,人是自然之子,而不能仅把人看作自然的征服者,大家都知道,人类只有一个地球,地球上的山山水水、动物.植物是人类的细胞,如果我们把它损坏了,破坏了大自然的组织,等于消灭人类.因此,环境要与社会公德联系起来,与实践行为作为人格教育的一项重要内容来抓.每个人都要履行保护环境的责任和义务.

今天，我按老师的要求去调查周围环境保护的情况。

Today, I according to the requirements of teachers to investigate the protection of the environment.

我先来到公园，就看见那儿到处都是垃圾。我眼前有一个阿姨，她坐在石凳上，吃着瓜子，还把瓜子壳扔得满地都是。我看见了很生气，就去阻劝阿姨。可她却一副事不关己，高高在上的样子。我看见有清洁工在打扫卫生，可是周围人扔垃圾的速度远比他们打扫的要快得多。

I first came to the park, I saw there was rubbish everywhere. I have an aunt, she sat on the bench, eating melon seeds, the seeds were strewn across the floor. I saw aunt is very angry, to dissuade. She has a pair of NIMBY, superior. I saw street cleaners cleaning the health, but the surrounding people throw garbage much faster than they clean the much faster.

我又来到了公园东侧的小河边，看见水面上漂浮着塑料袋、饼干包装袋……甚至还飘着几条小鱼的尸体，散发着一股股令人作呕的气味。

I went to the park on the eastern side of the river, saw floating on the water with plastic bags, packaging bags of biscuits...... Even with a few small fishs body, exudes the smell shares turn ones stomach.

我来到了菜市场，看见地上尽是烂菜叶、烂水果，还有还有家禽的羽毛及内脏，这么脏的地面让我的脚都不敢踩下去了。哎呀!糟了!我踩在香蕉皮上摔跤了，裤子都被弄湿了!我赶紧爬起来，慌忙逃离。

I went to the vegetable market, saw the ground was full of rotten vegetables, rotten fruit, as well as poultry feathers and visceral, the dirty ground make my feet have not stepped on. Oh! Bad! I stepped on the wrestling on a banana skin, pants are wet! I quickly got up, hurried away.

周围的环境简直糟透了，若再不注意保护，我们人类定将无法生存。让我们一起行动起来吧，保护环境，从“我”做起。

The surrounding environment is bad, if we do not pay attention to the protection of the human, we will not survive. Let us act together now, Protect environment, from "I" to start.

industrial pollution is the industrial production process of the formation of gas, waste water and solid emissions on the environment pollution. industrial pollution is mainly concentrated in a few industries. paper, chemical, steel, electricity, food, mining, textile and other seven sectors accounted for the total wastewater discharge 4 / 5. paper and food industry accounts for cod emissions of cod emissions 2 / 3, non-ferrous metallurgical industry, heavy metal emissions of heavy metals emissions account for nearly 1 / 2. industrial pollution is the industrial enterprises in the production process, including human biological survival and reproduction of the natural environment against. pollution is mainly from the production of the "three wastes" (waste water, waste gas, waste) and all kinds of noise caused can be divided into water pollution, air pollution, waste pollution, noise pollution.

industrial pollution hazard. first, a large number of industrial production in the discharge of untreated water, gas, slag and other hazardous waste, it will seriously damage the ecological balance of agriculture and natural resources on the development of agricultural production caused great harm; second, industrial "three wastes" of the industry production itself is also very serious hazards, toxic pollutants can corrode pipes, damaged equipment, affecting plant life, etc.; third, environmental pollution, rampant pollution, directly endangering the health of the masses; also some contamination is not easy to find, after the damage that has very serious

人类活动所造成的“人为污染”，是影响空气品质的主因，它的来源可分成下列3类：

1. 工业污染源——火力发电厂及各种类型的工厂，在生产过程中，燃烧燃料所排放出的废气、烟尘等，若不经适当处理，会严重的污染空气。

2. 交通污染源——汽车、飞机、火车和船舶等交通工具，其排放出的废气中含有一氧化碳、氮氧化物、碳氢化合物及铅等污染物。这些交通污染源和工业污染相比，是比较小型、分散、流动的，但是因为数量庞大，所以排出的污染物的总量，也是具有相当的破坏力。

3. 生活污染源——日常生活也会产生污染空气的物质，如香烟、炒菜的油烟，以及由冰箱、冷气泄漏出的冷媒等，都会污染空气。

空气污染不管是对我们还是对植物危害都很大，为什么这么说?这是我通过一次研究发现的，至于是什么研究，就听我慢慢跟大家说。

在庭园里种些花草，不仅能美化我们的家，还能净化我们四周的空气，让我们呼吸的空气更清新。因此有人说，一个具有一定规模的庭园就像一个不停工作的天然“氧吧”，能提供我们所需的清新空气。但近几天我发现我家的天然“氧吧”“罢工”了，每天清早我到院子里，再也呼吸不到以前那种清新的空气了。这是怎么回事呢?是什么令到我家的天然“氧吧”停止工作呢?我下定决心，一定要把那个“凶手”揪出来!

针对上述事件，我查阅了大量资料，综合我对花草、树叶的连日观察，发现嫌疑最大的是近日车辆的频繁来往，造成了严重的空气污染，加上附近的一些食店排放出来的油烟因近日风势不强，得不到有效的散解，被花草、树叶过量地吸收，造成叶片表面气孔被尘粒堵塞，以至它们不能“工作”。我咨询了自然老师，老师认为这种可能性很高，让我回家去试验一下。于是我回去采了一些花草样本，把它们栽在室内，定期让它们照射阳光，浇水次数加密，几天后，和其他的比较一下，发现经我“悉心照顾”的那些花草比外面的生长得好多了。根据我的实验结果，我把每天浇水的次数加密到每天3次，经过我一个多星期“苦心经营”，“天然氧吧”终于又恢复了正常的工作，每天为我们提供着清新的空气。

综合以上所述，我得出了结论：“天然氧吧”的停止工作，是因为周围空气污染的日趋严重，使花草过量地吸收了空气中的一氧化碳、碳氢化合物、氮氧化物以及空气中的悬浮粒子，以至花草、树叶中用于进行光合作用的气孔被堵塞，机能超荷，停止工作。我终于把这个“凶手”揪了出来!

你看，这就是空气污染的危害。空气污染其实伤害的不仅仅是我们自己，也伤害了地球上的许许多多的生物，还有我们的地球母亲……让我们一起行动起来，减少空气污染，一起保护我们的生存环境吧!

Dear Editor：

I am writing this letter to draw your attention to the deteriorating situation of “white pollution” in some regions despite the implementation of restrictions on the use of plastic bags.

In order to put an effective stop to the wide spread of “white pollution”， I would like to make the following suggestions . Firstly， the price of plastic bags should be further raised; Secondly ， special government departments should be established to supervise the making and using of plastic bags to ensure they are used when really needed.

I hope my suggestions would be of help and thank you for your attention.

ne possible version:

Dear Mike，

Thank you very much for your concern. Last months several places in Beijing were blanketed with thick yellow fog. Everything around disappeared from oursight. Some highways were closed. Traffic jams were commonly seen in the streets. Many people, especially children and seniors, even found it difficult to breathe. As a result, local hospitals were crowded with people who had problems with their noses and lungs. Part of the cause was the dry weather, but the severely damaged environment contributed a lot to this nightmare. Personally I didn’t get any health problems in the haze because I stayed mostly indoors.But to make a significant change we really have to do more to protect our environment. To live a better life we have to push on with the economy, but it wound be meaningless if we have to achieve it at the cost of our breathing air.

Regards!

Yours，Li Hua

Air pollution is one of the major problems of the modern world.

A great deal of energy is needed to run the factories of modern industrial nations. Automobile, trains, planes and busses need energy, too.

Nearly all of this energy is produced by burning fuels. The burning produces wastes, some of which remain in the air, causing air pollution.

Scientists are finding ways to stop air pollution especially in big industrial areas and densely-populated cities.

They are studying new ways of generating electricity that may be less damaging to the environment. In the meantime, many power plants are being modernized to give off less polluted material.

Also, engineers try to design and locate new power plants to do minimum damage to the environment.

However, it may be that we still have a long way to go before we have a "clean" world.

Nearly all of the countries are trying hard to prevent and control air pollution. There indeed seems to be no end to tasks that environmentalists will be required to do.

People will continually find new ways to control pollution.

With the remarkable improvement of peoples living standard, people tend to buy more goods. As a result, a plenty of plastic bags are threw around and caused white pollution. Not only does it do harm to the environment, but also give people the impression that the city is dirty. As we all known, plastic bags are non-biodegradable material and it will stay in the soil for a long time. What’s worse, the poison released from the plastic bags is harmful.

随着人民生活水平的显著提高，人们购买的商品越来越多。所以，到处都是塑料袋，造成白色污染。塑料袋不仅污染环境，也给人城市很脏的印象。众所周知，塑料袋是不可生物降解的材料，会长期留在土壤里面。更糟糕的是，从塑料袋中释放的有毒物质是有害的。

Being current generation of young people, we should take measures to control the use of plastic bags .We can substitute them with cloth bags or reuse them. And the government can make rules to avoid using them. If we do our best, the use of plastic bags can be reduced, thus the white pollution can be controlled.

作为当代年轻的一代，我们应该采取措施来控制塑料袋的使用。我们可以用布袋来替代塑料袋或者重复使用。政府也可以制定规定来避免使用塑料袋。如果我们努力做好，塑料袋的使用就可以减少了，从而白色污染也会得到控制。

一篇《天然气锅炉排烟是加剧京城灰霾天气的重要原因》的文章表示，天然气锅炉排烟是造成北京地区“丰富水汽”的主要来源，是加剧灰霾空气的“帮凶”，称北京发展天然气是双刃剑，既有清洁能源的一面，又有排放水汽的负面影响和氮氧化物的污染。

真相：中科院大气物理所研究员王自发表示，按照我国当前的天然气消耗量计算，每年燃烧天然气产生的气态水在3亿吨左右，假如全部转化成液态水(但实际上不可能全部转化为液态水)，平摊在全国人口集中的东部地区(估算面积约360万平方公里)，液态水的厚度连0.1毫米/年都不到，仅占大气中可降水量的几十万分之一，影响微乎其微。所以说，“煤改气”不会显著增加北京市大气中的湿度，不是北京地区“丰富水汽”主要来源。

南开大学冯银厂教授表示，无论是燃煤、燃气还是燃油，都会排放氮氧化物。“煤改气”是否会导致氮氧化物的升高，主要取决于改气之前煤炭的燃烧方式和煤炭品质、改气之后采取的燃烧技术等因素。如果采用了低氮燃烧技术，氮氧化物的排放量就会降低。我国脱硝比脱硫起步晚，近年来大气环境中的氮氧化物浓度下降并不像二氧化硫那么显著。氮氧化物浓度的增加可能会造成二次污染，但这是可控的。而且污染成因和机理非常复杂，不能因为氮氧化物浓度没有明显下降，颗粒物污染依然严重，就说是“煤改气”造成的，这是不科学的。

Recently, a Chinese student who studied abroad delivered a speech at the

graduate ceremony. Her speech soon became the hot issue, because she criticized

Chinese air pollution, which was a great threat to her health. Though her speech

had exaggerated the problem, it is true that China has faced many pollution

problems. The haze in Beijing is famous around the world, which is the

punishment for human to ruin the environment. It needs time to fix the problem,

but there is no need to deny our country. Even for the developed countries, they

have once faced such problem before. We can do something in the daily life to

protect it, such as do not throw away the rubbish.