汽车带来的环境污染英语作文(最新20篇)

人们对绿色生活观念日益加深，使人们明白环境保护的重要性，每日人类所造成的环境破坏也使人明白可怕后果的初步形式，环境的日益恶劣人类不是毫无举措应该努力挽救，每个人都应该献出自己的一份力量。从现在开始行动，为我们美好的明天而付出把！

环境污染的原因主要是人为的因素所造成。平时人们在生产、生活中排放的大量“三废”和某些工业、生活设施的突发意外事故，以及医院未经处理的废弃物等均可造成环境污染，严重时可引起危害。战时由于大量使用各种武器对居民的杀伤和对居民区的破坏，()更能造成环境污染和破坏。生活中有许多方面会造成污染，但是我们应该防护，不应该任其恶意发展，从身边开始倡导环境保护，让地球永远伴你随行，你有很多种方法来保护环境，比如你每日不开自己的车上班，坐公共汽车上班或骑自行车和电动车，从而见少二氧化碳的排放这样一来可以保护空气环境也可以不让臭氧层遭到破坏，你也为环境保护做出贡献。在你的日常生活中你坚决不适用一次性餐具和塑料袋减少白色污染，塑料是无法在土里消除这样会造成污染。如果你是开化工厂你所造成的污水应该经过处理在排放否则会造成水污染，你也将为此而无声无息中在你不知觉中会坏你的地球，你也离死亡更进一步，如果你不愿看到这一面你最好做好处理工作。在周末的假期你应该阻止你的家庭成员一起去野外植树，这样做可以改善空气的部分气体，让空气各个含量在稳定比例，让空气循环利用。在日常生活中不要使用化学燃料，它所产生的气体会影响环境，用污染的燃料这样是对我们有好处的。有许多方法可以保护环境就看你是否有去做了，在生活中提倡绿色生活观念，共同携手保护环境，让污染远离地球吧，让我们的后代可以依赖于地球而活不要断开于地球的相互生命的纽带，让它永存让人泪书写在地球的光辉历史！

地球是我们不可失去的生存之地但在不愿失去它的前提是做好环境保护，这是基本要求，没有做好那吗人类的灭亡是迟早的事情，美好只存在我们的环保意识之间，如果你想有美好的明天就应该怎么做你应该明白，为了你的明天我们共同倡导全世界人们携手保护地球，相互监督。加油为我们的地球而做出贡献吧！

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。

我热爱地球，热爱我们赖以生存的家园。爱她的青山绿水，爱她的碧草蓝天……

I love the earth, love for our homeland. Love her beautiful country scene, love her green to the sky......

在四野飘香的花丛中，我和蝶儿一起嬉戏、欢笑;在郁郁葱葱的森林里，我与小鸟一起追逐、歌唱;清晨，我迈着轻盈的步履去原野上踏青，雾霭缭绕着、白纱般的柔柔地漂浮在空中。吮吸着花草的芳香， 欣享着阳光的沐浴，我被陶醉在这如痴如醉的梦幻里;夜晚，我坐在稻谷飘香的农家小院里，仰望着璀璨的星空，聆听着蝉鸣嘹响，蛙声如潮，仿佛置身于一个童话般的王国。

In the fields the fragrance of flowers, butterflies, and I play together in laughter; a wild profusion of vegetation in the forest, I chase, with birds singing; early in the morning, I walked with light steps to the fields on the outing, mist shrouded with white veil, gently floating in the air. At the scent of flowers and plants, we enjoy the sun bath, I was intoxicated in the dream of the night, delude one to folly; I sat in the fragrance of rice farmers in a small courtyard, looking up at the bright sky, listening to the sound of cicadas Liao ring, frog sound waves, like being in a fairy tale kingdom.

多么好的环境啊!怎能容许被破坏呢?

Very good environment! That would allow the destroyed?

人类的高科技，大排放，无止地开采……恐龙因环境而灭绝，而人类却要把自己毁灭掉吗?

The high-tech, high emissions, the endless exploitation...... The dinosaur extinction due to the environment, human have to destroy ourselves?

保护环境与维护生态平衡的历史重任要落到我们跨世纪一代的肩上。让我们都来关爱自然，热爱地球吧，手挽手、肩并肩、心连心地铸起一道绿色环保的大堤，捍卫资源、捍卫环境、捍卫地球、捍卫我们美好的家园吧!

The historical responsibility Protect environment and maintaining ecological balance to fall on our cross century generation shoulder. Let us all come to love nature, love the earth, hand in hand, shoulder to shoulder, heart to heart to set up a green dam, defend, defend, defend the earth resources and environment, protect our beautiful homeland!

我们生活的地球正遭受着严重的空气污染。工厂排放的废气、燃烧的垃圾、汽车的尾气等都是污染大气的祸源。它们时刻侵袭着我们的呼吸道和肺，使呼吸系统的发病率逐年上升。

当空气轻微污染时，人体吸入的空气可以由鼻腔里的鼻毛除去部分灰尘，再由鼻腔里的黏液和各类支气管里的黏液将灰尘粘连住。气管和支气管内的纤毛有几千万根，它们每秒约摆动12次，像“清洁工”一样从下向上推扫呼吸道里的黏液，直至咽喉部，再通过咳嗽咳出体外。

当空气严重污染时，呼吸道的净化作用将降低，甚至完全丧失。在这种情况下，呼吸道和肺易受病菌的侵袭而患各种疾病。

由于种种原因，空气污染还在加剧。如果不能解决空气污染的问题，恐怕真有一天，人类只能带着口罩生活。

people have been living on the earth for thousands of years.humanactivity influences the earth. some people believe that theearth isbeing harmed by human activity. others feel that humanactivitymakes the earth a better place to live. in my opinion, theearth isbeing damaged by human activity. there are manystatementssupporting my opinion.

human activity has damaged natural environment and almostexaustednatural resources. modern industry needs more and moreresources,including minerals, fuels and water. so we confront ofthe seriousproblems such as the lack of fuels and water.ecological balance isdamaged because factories occupy many placeswhere animals andplants live. more and more buildings areconstructed and forestsbecome less and less. if we cannotrecognize these problems andsolve them soon, we would finally losethe environment suitable forour living.an other serious problem is the green-house effect.humanactivity decreases forests and increases the usage of fuels sothatthe gas of carbon dioxide is output more and more and there arenotenough plants to absorb it. the green-house effect is moreobviousand more sensible these years. due to the effect, icebergsin thesouth polar and north polar melt and the sea level becomeshigherthan before. i am worried about the cities nearby the sea andhopescientists find an effective method to eliminate thegreen-houseeffect.

although we have advanced machines and our life seemsmorecomfortable than before, we have less chances to approachnaturesand less spaces to act. the cities become bigger and if wewant tohave a picnic with our friends, we have to drive a longdistance tofind a natural place. in fact, the spaces of humanactivity arebeing damaged by the skyscrapers and factories.from the above statements, we can conclude that humanactivitybrings the earth many damages. fortunately people haverecognizedthe point and i believe that the earth will become abetter placeto live with our ceaseless efforts.

When winter comes, the topic of haze will never be ignored. When it comes, many pictures will be showed. People make fun of these pictures and they actually laugh at themselves, living with these poison air. Even in the daytime, people can’t see their faces beyond 10 meters. Many schools choose to stop the class and let the students stay at home. It is obvious that haze is a great threat to people’s health. This new type of destruction is the result of polluted environment. Businessmen chase for the profit and take the cost of polluting the environment. Now their offspring have to suffer from it. It is never too late to do something to protect our earth.

当冬季来临的时候，阴霾的话题永远不会被忽略。当雾霾到来的时候，人们会为它拍摄很多图片，之后再取笑这些照片。但是他们实际上嘲笑的是他们自己，因为他们生活在这些有毒的空气里。即使在白天，如果超过10米的话，人们都会看不见他人的脸。许多学校选择停课，让学生呆在家里。很明显，雾霾严重威胁到人们的健康。这种新型的破坏是环境污染的后果。商人们追求以污染环境为代价的利润，现在他们的后代都得遭受到恶果。现在为保护我们的地球付出努力还为时不晚。

环境保护问题是中考热门话题，出现频率高，难度较大，必须掌握。

1 、6月5日(June 5)是世界环境保护日，我们周围的环境变得越来越糟糕，污染越来越严重……。假如你是学生Jone.，你校要进行“如何保护我们的环境?”专题演讲比赛，要求：(1)、举例说明环境存在的问题1-3方面;(2)、如何保护好我们的环境，采取怎样的措施，举例1-3方面进行说明，字数80左右。

As we all know，the environmemt around us is getting worse and worse .In some places，we cant see fish swimming in the river or trees on the hills. Some people even have no clean water to drink. So I think we must do something to protect the environment. But what can we do?How to protect our environmemt ?For example，we can go to school on foot or by bike . we can use shopping baskets not plastic bags when we go shopping，and we can use both sides of the paper when we write .In a word，if everyone pays more attention to our environment ，there will be less pollution and our life will be better.“There is only one earth”，I hope everyone will protect our environment well.

2、保护环境

( 四川乐山) 从2008年6月1日起，国家将禁止商家免费提供塑料袋，掀起全国“拒塑”的环保运动。假如你是李华，准备以“What Can We Do for the Environment” 为题，写一篇保护环境的英语演讲稿。 内容包含：

(1)。在购物时用布袋子替代塑料袋;(2)。尽可能地再利用使用过的课本;(3)。离开教室应关灯;(4)。最好走路或骑自行车上学;(5)。简述理由：保护环境，减少污染，节约能源等。

参考词汇：布袋子cloth bag 塑料袋plastic bag 保护protect 能源energy

污染pollution 课本textbook

What Can We Do for the Environment

our environment is becoming worse and worse，what can we do for the environment?I think each of us can do a little bit to help with this problem.

The first thing we can do is to use cloth bags instead of plastic bags when we go shopping. It helps to protect the environment. The second thing we can do is to reuse the old textbooks as possible as we can. We should also never forget to turn off the lights when we leave the classrooms in order to save energy. Whats more，it would be better if we walk or ride a bike to school. We should try our best to reduce pollution and waste.

In fact，even the simplest everyday activities can make a real difference to the environment. I believe we can make the world a better place to live in.

3.为了保护地球有限的资源，我们应该采取什么措施呢?请根据下面的提示写一篇约80词的短文，短文开头已经给出。提示词;1.save water，the source of life，protect drinking water，stop polluting，make full use of it;2.save electricity，crucial，turn off，other electric machines;3. save forests，useful，stop cutting down;4.recycle useful rubbish，save resources

参考作文：

Although the world develops much faster and better，the resources on the earth get fewer and fewer.In order to protect them，something must be done.

Save water. Water is the source of life. No water，no life. So its very important for us to do so.Not only should we protect drinking water and stop polluting it，but also make full use of it.

Save electricity. It is crucial. We cant imagine what the life will be like without it.Everyone should do his best to save electricity. Dont forget to turn off lights or other electric machines when we finish working.

Save forests. They are useful .Please stop cutting them down and use recycled paper instead. Make our world a green one to live in.

Recycle useful rubbish. Plenty of rubbish can be recycled like cans，paper，bottles，and so on.

We can save resources in this way. I believe we can make the world a better place to live in.

Pollution is becoming more and more serious all over the world. As is shown in the cartoon, two cars are giving off waste gas and three people are trying to avoid breathing in the poisonous gas by masking their face with their hands. The poisonous gas sent off by factories, domestic appliances and automobiles has made the air unhealthy for people to breathe.

There is no denying that automobiles are indications of civilization, progress and development; nevertheless , automobiles cause the serious problem of air pollution. Scientists have warned that unless effective measures are taken, the problem of pollution will eventually get out of hand. Actually, people are showing a real concern over the problem. For example, there is an increasingly loud voice from the public for firm action against pollution from automobiles.

Indeed, the earth is our home and we have the duty to take care of it for ourselves and for our descendants. In my opinion, we should work out concrete solutions to the problem of pollution from poisonous gas given off by automobiles. For example, the automobiles should be equipped with a device which can dispose of waste gas so as to prevent it from polluting air. Only in this way can we really solve the problem of air pollution caused by automobiles.

污染变得越来越严重的世界各地。这幅漫画所示,两辆车散发废气和三个人正试图避免吸入有毒气体通过屏蔽自己的脸。工厂的有毒气体罚下,家用电器和汽车污染的空气影响了人们的呼吸。

不可否认,汽车文明的迹象,进步和发展;然而,汽车造成空气污染的严重问题。科学家们警告说,除非采取有效措施,污染的问题最终会失控。实际上,人们显示出真正的担忧的问题。例如,有一个公共的越来越大声对汽车污染公司行动。

事实上,地球是我们的家园,我们有责任照顾它为我们自己和我们的后代。在我看来,我们应该制定具体的解决问题的有毒气体污染的汽车。例如,汽车应该配备一个设备可以处理废气,以防止污染空气。只有用这种方法我们才能真正解决由汽车引起的空气污染的问题。

6月5日( June 5)是世界环境保护日， 我们周围的环境变得越来越糟糕，污染越来越严重。环境问题影响着人们的工作，学习，生活等，而我们的工作，生活，生产等又使环境污染越来越严重....。。如何保护我们的环境? 请以“ How to protect/save our environment/world? ”为题写一篇短文。

提示：存在问题：1.水污染越来越严重;2.砍伐森林严重;3. 大气污染严重;4. 白色垃圾等。

要求：如何改善/保护环境?至少：3---4个方面， 80字左右的。

★ 范文

How to protect/save our environment/world?

The environmental pollution is worse and worse /more and more seriously today. Water is polluted; we have no clean water to drink. Many trees are cutting down, some animals is getting less and less. Some factories are pouring dirty air in the sky, the population is increasing faster and faster, resources are getting less and less…etc. Not only does it affect our lives and health, it but also has a great affection in the future. Peoples health has been greatly affected by air, noise and water pollution. Many people died of diseases. In order to live a better life, we need protect our world。

We shouldn’t throw away rubbish everywhere. We want to recycle, reduce, reuse things .Don’t waste things. This saves money and reduces pollution. Use things for as long as possible. We don’t use plastic bags. We must plant more trees and stop the people cutting them .We hope our world becomes more and more beautiful。

一天，小燕子飞在小河上空，远处工厂的烟囱里冒出一股股灰烟，遮着了太阳和蓝天。

漂着垃圾的小河里，小鱼探出头来，它问道：“你知道为什么河水那么脏吗?”小雨嫌弃的看着自己身边的漂浮着的垃圾。

小燕子叹了口气说：“那是人类不爱护自己的家园造成的。”

“我真羡慕你，如果这个地方受污染了你还能飞到另外一个地方，而我却只能呆在这里。”小雨无可奈何的说。

小燕子悲愤的说：“人类难道不知道是大自然抚育了他们，他们难道不应该和我们一起保护大自然吗?”小燕子越说越激动!

小鱼的情绪也波动起来，忧心忡忡的说：“地球是我们共同的家园，我们大家应该一起呵护它!

小鱼又说：“我们虽然无法改变环境，但我们可以改变自己的心情!”小鱼说完尾巴一翘就游走了。

小燕子若有所思的想着刚才小鱼说的话······

[关于环境和污染作文400字

I am a child of the suns mother, my name is called the earth. I used to live happy, wake up in the morning, light rain "hua" to give me a bath; People planted many trees and flowers in my body, to get dolled up on me, then, clean running around the sun mother I, let the sun mother look at my new skirt. In the afternoon, the children from school, and I do homework together and play with me together. At night, people also make me very beautiful, they gave me the street lamp, make me golden... The mother said: "the human also is really good, not only your dress is very beautiful, also play with you, you are so blessed, so lucky!"

But now, the human is not as great as the sun mother said. They throw rubbish in my body, I got into a lot of dirty, human "car" still love discharge of tail gas, the rain is full of dirty water, the more I to wash the dirty; People still love the disorderly cut down trees flowers and plants, destruction of street lamp, make clothes and they gave me a bad bad, dirty... The sun mother urged me to say: "you still get rid of those humans!" But the good and I dont have the heart to leave them. Because it make me a bad meal every day, sleep well, so, I got sick, floods, earthquakes often... Some said 2012 could be the end of me. People in the disaster, are aware of this they destroy me, and they began to care about me, love me! I believe in the days that followed, I will become more beautiful, beautiful!

我是太阳妈妈的孩子，我的名字叫地球。我以前生活的很快乐：早上一醒来，小雨就“哗啦啦”地给我洗澡;人们在我身上种了很多花草树木，把我打扮得漂漂亮亮的，然后，干干净净的我就围着太阳妈妈转来转去，让太阳妈妈看看我的新裙子。下午，孩子们放学了，就和我一起写作业，一起和我玩。晚上，人们也把我打扮的很漂亮，他们给我身上安上路灯，把我打扮的金灿灿的……太阳妈妈说：“人类还真好，不仅把你打扮的很漂亮，还和你一起玩，你真是太有福气，太幸运了!”

可是现在，人类也不像太阳妈妈说的那么好了。他们在我身上乱扔垃圾，把我搞得浑身脏兮兮的，人类的“车”还爱排放尾气，雨下下来的全是脏水，把我越洗越脏;人们还爱乱砍伐树木花草，破坏路灯，把他们给我的衣服也搞得的烂烂的，脏脏的……太阳妈妈劝我说：“你还是摆脱那些人类吧!”可是好心的我又不忍心丢下他们。因为这件事让我每天吃不好饭，睡不好觉，所以，我就生病了，经常发洪水、地震……还有人说2012年可能是我的末日。人们在这些灾难中，意识到了这都是他们破坏我而造成的，于是他们又开始关心我，爱护我了!我相信以后的日子里，我一定会变得更加美丽、漂亮的!

a country maid was walking along with a can of milk upon her head,when she fell into the following train of reflections."the money for which i shall sell this milk will enable me to increase my stock of eggs to three hundred,these eggs,allowing for what may prove addle,and what may be destroyed by vermin,will produce at least two hundred and fifty chickens.the chickens will be fit to carry to market just at the time when poultry is always dear;so that by the new year i cannot fail of having money enough to purchase a new gown.green-let me consider-yes,green becomes my complexion best .and green it shall be, in this dress i will go to the fair,where all young fellows will strive to have me for a parter;but no-i shall refuse every one of them,and with a disdainful toss turn from them."

transported with this idea,she could not forbear acting with her head the thought that passed in her mind,when down came the can of milk!and all her imaginary happiness vanished in a moment.

As is known to all, waste on campus has become a more and more serious problem. We can easily see many students dump a lot of food in the garbage can. Some students spend thousands of yuan buying fashionable clothes and so on.

The negative effects of waste can be shown in the following aspects. In the first place, it makes some students dependent on their parents for money, which is harmful to their development.

If they don’t learn to support themselves, they will be “useless people” when they graduate. In the second place, it is not easy for our parents to arrange for our schooling. Last but not the least important, there is no denying the fact that our country is still poor. There are many people who cannot go to university and many poor people still need our help.

As far as I am concerned, I should set a good example to reduce waste on campus. First of all, I will refrain from wasting anything, from food to stationery. What’s more, I’m determined to call on more schoolmates to fight against waste. Only through these measures can we hope to reduce waste on campus.

在十年前的中国，大气污染问题对于普通民众来说可能是个比较飘渺的话题。正如空气本身的性质一样，看不见摸不着却无处不在。而专家学者们则主要关注的是对于工业生产，燃煤发电所产生的硫氧化物的处理和汽车尾气中氮氧化物的处理。十年时间飞逝，随着中国经济的迅速发展，人们生活水平的不断提高，人们开始关注生活的质量问题。与其同时越发严重的正是中国以牺牲环境为代价发展经济所带来的环境问题，其中大气污染问题尤其明显。这几年来关于温室气体和温室效应的话题被讨论得沸沸扬扬，专家们各有其立场，但对于普通百姓来说，全球变暖问题似乎仍很遥远。对于温室气体所带来的全球变暖，海平面上升，冰川融化，动植物灭亡的问题，人们大多数是在电视新闻或报刊杂志上看到，恶劣天气的频发也并不是发生在世界每个角落。相比于温室气体所带的大气污染问题，人们开始关注更多的便是最近发生在北京，广州，武汉等多地的灰霾问题。尤其是在北京持续很久的灰霾严重影响了当地人们的日常生活和身体健康，更是引起了广大专家学者和普通民众的高度关注。而其实对于灰霾现象，国外专家学者很多年前便开始研究。

那么何为灰霾？灰霾是导致近地面大气浑浊的多种空气污染物的混合体。构成灰霾的主要污染物是硝酸盐、硫酸盐、有机碳、元素碳、等固体细颗粒物（PM2.5）和臭氧()、二氧化氮（）、二氧化硫（）、挥发性有机物（）等气态污染物。灰霾往往与天然污染源的排放和二次污染污染物的形成有关，还与一定的气象条件和地形有关。我们现在最关注的同时也最难解决的室外污染物之一是可吸入颗粒物。可吸入颗粒物被分类为两种，直径小于2.5微米的颗粒物（PM2.5）和直径小于10微米的颗粒物（PM10）。虽然两种形式的颗粒物都对人类健康有极大的危害，PM2.5被普遍认为是更危险的，因为它的体积小，大约只有人类头发宽度的1/30。人们在呼吸时，PM2.5可以进入人类肺组织深处，甚至进入血液，造成严重的健康问题。同时更小的颗粒物在大气中可以有较长的停留时间。因此，PM2.5可以传播的更远，停留在空气的时间越长，影响更大的人口。PM2.5和PM10的主要来源包括机动车，电厂和其他工业源，以及生物质的燃烧。其中一个主要的来源是柴油为动力的车辆。这些污染源相结合，可以在城市或农村地区天空一片阴霾，而且往往发生在下午时段。

对于容易形成灰霾的城市,除了城市当地工业污染,汽车尾气的影响以外,特定的地形导致污染物的难以扩散也是灰霾形成的主要原因，像美国的洛杉矶,还有前面提到的受灰霾影响的北京和武汉都受到了地形的影响。洛杉矶市三面被群山包围，当地空气干燥，白天阳光充足。到了晚上，地表面冷却很快。地面附近的空气变冷，而上层空气都比较热，形成逆温。北京市位于华北平原的西北边缘，背靠太行山余脉和燕山山脉，面对辽阔的华北平原，东南距渤海约150公里, 地处暖温带半湿润地区，气候属于暖温带半湿润大陆性季风气候,四季分明，春季多风和沙尘，夏季炎热多雨，秋季晴朗干燥，冬季寒冷且大风猛烈。武汉市则居于内陆、距海洋远，周围地形如盆地，集热容易散热难，河湖多、晚上水汽多，城市热岛效应和伏旱时副高控制明显。通过比较以上3个城市的情况可以发现它们都是较大的工业城市，而且城市海拔较低，周围至少有一面是高地，都分布在低于南北纬50度的地方。这些地区夏季阳光明媚，天气温暖干燥。在城市的盆地地区，逆温现象十分普遍。夏季的阳光使地面温度升高，城市街道和建筑物迅速升温，与炎热的物体表面接触的空气温度升高。通过对流空气向上运动，但它却不能穿透逆温层，因为上面的空气温度更暖且密度更小。空气聚集，但连续的对流形成了垂直的循环，使空气完全混合在一起。从建筑物和汽车废气释放出的气体和颗粒也都聚集在逆温层下，通过对流把聚集的空气彻底混合。这样导致污染物无法快速扩散而聚集，大大增加了当地的污染物浓度。

城市内部灰霾的形成也同样受到了这种类似地形的影响，学者称它为街谷模型。随着城市化的加速，城市及城市周边的自然生态系统逐渐被人工生态系统取代，取而代之的是钢筋混凝土浇筑的高楼与马路,很容易形成城市街道峡谷。这种城市街道峡谷是指两侧有连续，高大建筑物的狭长城市街道空间。在这种地形下,上层大气在进入城市时，风速迅速降低并产生特殊的湍流，使街谷内的流场完全不同于上层大气。而气流对污染物具有显著的运输、稀释、和扩散作用，因此，对城市街谷内污染物的浓度、分布有着很大影响。北京的灰霾现象正是因为污染物积聚难以扩散而导致北京的灰霾持续了如此之久。有相关专家的研究发现,除了通过控制排放源,增大扩散和增加沉积率来降低大气中污染颗粒物的浓度以外,地面的性质也影响着颗粒物的浓度。有研究表明植被对城市空气质量能有接近5%的提高。在城市，尤其是在城市街谷地带种植植被能通过增加沉积作用而降低60%的可吸入颗粒物（PM）浓度和40%的二氧化氮（NO2）浓度。因此，通过对植被的合理利用能过创造一个有效的城市污染过滤膜，对密集城市地带空气质量的提高有着快速有效并且持续性的影响。

灰霾问题不是一个暂时性的问题，相反它是一个长久的问题，从它如何形成，加剧到我们如何解决治理并消除都需要一段很长的时间。

灰霾现象，它只是地球环境污染的一个缩影。我们更应该探究它的根源问题，什么才是它形成的根源，什么才是它加剧的根源。我们没法通过改变天然的气候和地形来解决城市灰霾问题，但我们可以通过减少排放源，通过增加植被，加强城市绿化来阻止灰霾的加剧。人类的不断进步使得人们在追求高科技的同时却忘记了自然本身的无穷力量。越来越高的大楼，越来越发达便利的交通，相反的却是城市越来越差的生活环境。在灰色的钢筋水泥世界里生活久了，人们是否会怀念那晴朗的蓝天，向往呼吸新鲜的空气和在那充满生机的绿色大自然世界里生活。

If we dont take care of our lovely campus and make it hurt, we will suffer harm and harm our health.

Today, we need to protect the environment as our obligation to protect the environment with our actual actions. We should know how to protect the environment is to protect ourselves, we should not only use resources rationally, whenever they want to protect the environment, as a student, we should create more green campus. Starts from the minor matter, starts from now, starts from the care for the campus and protect the environment, picked up a piece of paper on the ground and save every drop of water, cherish every inch, walk more, dont cross the green, the grass. I believe that in the near future, our life will be another scene!

Students, we are the masters of the 21st century, the environmental awareness is not limited, we are looking at the campus. "Do not be good and not evil," for our common campus, let us act immediately.

我们都知道鸟是人类的朋友，在生活中处处都离不开鸟儿。有一只只可爱的小鸟，让天空变得更加美丽，有了一只只美丽的小鸟，我们的生活增添了色彩，有了一只只叫声动听的鸟儿，使我们的生活变得更加有情趣。总之，为了我们现在美好的生活，我们一定要爱护鸟儿。

可是，同学们你们知道吗?现在因为人们乱砍乱伐，使大自然的生态平衡遭到了破坏，让很多无辜的鸟儿失去了“家园”。现在，又由于人类的经济活动和生活条件的改善，对环境造成一定影响，使某些鸟类失去了必要的取食条件和繁殖场所，因此，有些鸟类就会养活，甚至濒临灭绝。所以我们也要在保护鸟儿的前提下保护自然环境，给鸟儿一个美好的“家园”。

不仅这样，现在有很多的捕鸟者，这也是使鸟儿减少的一个重要元素。那些捕鸟者把捕到的一只只鸟儿贩卖到各个地方，那些可怜的鸟儿有的被做成了一道道可口的菜肴，有的则被加工成其它物品。

同学们，我们一定要保护鸟儿，保护好现在仅剩的鸟儿，想一想在以后的日子里，人与鸟儿和谐相处在暖和的季节里，那些可爱的小精灵，每天在太阳公公的照耀下，都会吟唱快乐而动声的歌曲，只要一看到害虫，它们就会争先恐后地冲上前去，把害虫消灭掉。鸟儿给人类带来这么多的好处，我们是不是应该善待它们呢?是不是应该和它们做朋友呢?

同学们，为了以后的美好生活，我们一定要爱护鸟类!

We cant live without water, but now the water was polluted.It is the biggest problem.It influences our daily life.So we should find a way to solve this problem.Water is important resources.In our daily life, we often leave the tap on after cleaning hands.Sometimes we often drop litter in the river.So the water was polluted by us.I think we could use a bottle of water two or three times.We have to turn off the tap after cleaning hands.

Lets try to form a good habit and save things around us.Lets do it from now on!

Water is very important to us.We cant live without water.But the drinking water is less and less.Because we waste a lot of water in our daily life.And some of us often throw rubbish into the rivers.So the rivers are polluted seriously.

Its our duty to save water, we must do something to save water.For example, we shouldnt pour waste water into the rivers and we should pick up litter around us.

If we dont save water, the last drop of water will be our tear.

Fish cant live without water.Plants cant live without water.People cant live without water, either.As you can see, the water is very important to us.But now drinking water is less and less.The water was polluted seriously.

So we would act quickly in order to save the water, But what must we do now? I think we can plant trees, clean the banks of the river, water the plants by using used water.Turn off the shower while we are washing hair.And we shouldnt drop litter into the river and so on.

Its our duty to try our best to protect and save water.And dont forget that if we dont save water, the last drop of water will be our tear.;

If we dont save water, the last drop of water will be our tear.What a frightful announcement!

Water is very important for people, animals and plants.Water is needed to many things in daily life, like taking a shower, drinking, washing clothes, making meals and so on.We cant live without water.But now water has become less and less because people waste water and pollute water.If we continue to do things like this, we shall destroy ourselves.So we should take action to improve the environment quickly.We shouldnt throw rubbish into the rivers.We should pay attention to environmental protection.We can use less water when we wash something.In a word, we should save water.

环境污染也使人类自食了苦果，让我们回顾一下历史，看看前人是怎样受到自然的惩罚的，这就是世界著名的八大公害事件：

1、比利时马斯河谷事件：1930年12月，比利时马斯河谷工业区，排放的工业有害气体和粉尘对人体造成重大影响，一周内近60人死亡，市民中得心脏病、肺病死亡率增高，家畜死亡率也大大增高。

2、美国洛杉矶烟雾事件：20世纪40年代美国洛杉矶的大量汽车废气在紫外线的照射下产生光化学烟雾，造成许多人的眼睛红肿、咽炎、呼吸道疾病恶化及思维紊乱。

3、美国多诺拉事件：1984年10月，美国宾夕法尼亚州多诺拉镇的二氧化硫及其氧化物，与大气粉尘结合，使大气严重污染，5911造成人暴病。

4、英国伦敦烟雾事件：1952年12月，英国伦敦由于冬季燃煤引起的煤烟性烟雾，导致4天时间内4000多人死亡，两个月后又有8000多人死亡。

5、日本水俣病事件：1953年至1968年，日本熊本县水俣湾，由于人们食用了含汞污水污染的海湾中的鱼虾，造成近万人中枢神经疾病，其中甲基汞中毒患者283人中有60余人死亡。

6、日本四日市废气事件：1961年，日本四日市由于石油冶炼和工业燃油产生的废气，严重污染大气，引起居民呼吸道疾病骤增，尤其是哮喘病的发病率大大提高，形成了一种突出的环境问题。

7、日本富山的痛痛病事件：1955年至1977年，生活在日本富山的人们，因为饮用了含镉的河水和食用了含镉的大米，以及其他含镉的食物引起痛痛病，就诊患者258人，其中死亡者达207人。

8、日本的爱知粮油事件：1963年3月，在日本的爱知县一带，由于对生产米糠油的管理不善，造成多氯联苯污染物混入米糠油，人们食用了这种被污染的油之后，造成13000多人中毒，数十万只鸡死亡的严重污染事件。

Once man did not have to think about the protection of his environment.There were few people on the earth, and natural resources seemed to be unlimited.

Today things are different.The world has become too crowded.We are using up our natural resources,and polluting our environment with dangerous chemicals.If we continue to do this, human life on earth will not survive.

We realize that if too many fish are taken from the sea, there will soon be none left.Yet,with modern fishing methods, more and more fish are caught.We know that if too many trees are cut down, forests will disappear.Yet, we continue to use powerful machines to cut down more and more trees.We see that if rivers are polluted with waste products, we will die.Yet, waste products are still put into rivers.

We know that if the population continues to rise at the present rate, in a few years, there wont be enough food.What can we do to solve these problems?

If we eat more vegetables and less meat, there will be more food available.Land for crops feeds five times more people than land where animals are kept.

Our natural resources will last longer if we learn to recycie them.

The world population will not rise so quickly if people use modern methods of birth control.

Finally, if we educate people to think about the problems we shall have a better and cleaner planet in the future.

In recent years, we can clearly feel the environment around us is more and moreobvious pollution, environmental safety problems have been very serious. Because of our previous policy is heavy economic development, light environmental protection,resulting in environmental pollution, ecological damage is very serious, mainly manifested in the following aspects:

近几年来，我们可以明显的感觉到我们身边的环境污染愈显明显，环境安全问题已十分严重。因为我国以往的政策方针是重经济发展，轻环境保护，所以造成环境污染、生态破坏十分严重，主要表现为以下几个方面：

In the atmosphere of security, since the middle of the twentieth Century, industry andthe rapid development of transportation, causing air pollution is increasing. Air pollutionis harmful to human health, but also affect the growth of plants and animals,destruction of building materials, serious when can alter the earths climate. According to the survey, China each year from air pollution and economic losses amounted to about 100000000000 yuan.

在大气安全方面，20世纪中叶以来，工业和交通运输迅速发展，造成了大气污染的日益加重。大气污染既危害人体健康，又影响动植物的生长，破坏建筑材料，严重时会改变地球的气候。据调查显示，我国每年因大气污染造成的经济损失高达1000多亿元。

In the water security, water pollution in China is very serious, widespread around thedrinking water safety problems, a direct threat to human and animal survival. In recent years, although the investment fund management a lot of Huaihe and other waters, but the effect is not obvious, the overall situation is still deteriorating.

在水安全方面，我国水污染问题十分严重，各地普遍存在着饮用水安全问题，直接威胁到人畜生存。近几年虽然投入大量的资金治理淮河等水域，但效果并不明显，整体情况仍在恶化。

In a biological safety, the invasion of alien species mass, a serious threat to thebiological diversity of china. In fact, the blind introduction of foreign species, damage the environment balance, serious and even lead to disastrous consequences. At the same time, because of the destruction of the ecological environment and wildlifehunting, biological extinction rate is rapidly increasing.

在生物安全方面，大规模的外来物种入侵，严重威胁了我国的生物多样性。事实证明，盲目引进外来物种，会破坏环境平衡，严重时甚至带来灾难性的后果。同时，由于生态环境的破坏和对野生动植物的滥捕滥猎，生物消亡的速度正在迅速增加。

In the security of land, the land desertification and soil erosion is very serious. In addition, the cultivated land quality in China decreased very rapidly, at the same time,because of the serious land pollution phenomenon caused by excessive use ofpesticides, is directly related to food safety problem of residents in our country. China is a developing country, in the face of environmental pollution pressure not only fromChina itself, and applied pressure from some developed countries abroad. Therefore the development of economy and environment is a need for us to issue long face, and it also need to rely on the participation of each and every one of us.

在土地安全方面，我国土地荒漠化和水土流失的情况已十分严重。另外，我国耕地质量下降非常迅速，同时由于过度使用农药等造成的严重的耕地污染现象，直接关系到我国居民的食品安全问题。 我国是一个发展中大国，面对环境污染方面的压力不仅来自国内本身，还有来自国外一些发达国家施加的压力。因此发展经济和治理环境是一个需要我们长久面对的问题，而这也需要靠我们每个人的共同参与。

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.