《关于污染的英语作文》7100字_空气污染的英语作文

作文一:《关于污染的英语作文》7100字

If we don't save water, the last drop of water will be our tear.

环境污染是当今世界上最大的问题。请根据提示,用自己的话说说怎样保护我们的水资源。

(1) 生命离不开水资源 (2) 饮用水在减少 (3) 水污染严重(4) 应该保护和再利用水

We can't 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.

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

Water is very important to us. We can't 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.

It's our duty to save water, we must do something to save water. For example, we shouldn't pour waste water into the rivers and we should pick up litter around us.

If we don't save water, the last drop of water will be our tear.

Fish can't live without water. Plants can't live without water. People can't 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 shouldn't drop litter into the river and so on.

It's our duty to try our best to protect and save water. And don't forget that if we don't save water, the last drop of water will be our tear.;

If we don't 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 can't live without water. But now water has bee 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 shouldn't 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.

Take action quickly, there will be hope!

Water is very important. Without water, there can be no life on earth. People and animals need water. We need it to drink, to clean ourselves and to cook. What we need is fresh water, but most of the water on earth is sea water. The drinking water is being less and less because water was polluted by people. What should we do? I think we should save water. For example, when we brush our teeth, we should turf off the tap. We shouldn't pollute the fresh water. If we don't save water, the last drop of water will be our tear. If we continue to pollute water, we will live in a thirsty world.

Pollution is being more and more serious all over the world. The factory eject the dirty water, as a result , the water has being polluted and many fish species are dying out. We can't live without water. The earth is our only home and we should make it fortable for ourselves. We should save water in our daily life. For instance, turn off the shower while you are washing your hair. We should recycle water. Don't let our tear bee the last drop of water!

The most serious problem in the world is pollution. Water is the source of life. We can't live without water. But now some of the drinking water has bee polluted and is diminishing. Something must be done to stop the pollution. It's our duty to save water. We should stop factories from pouring waste water into the river. We should plant trees in order to keep soil. If we don't save water, the last drop of water will be our tear.

The most important question in the world is pollution, but we know water, like air is very important to living things because all animals and plants need water. We, like fish can't live without water. We need it to drink, cook, and clean ourselves. We need clean fresh water, but we are polluting the lakes and rivers. Our drinking water is being less and less. If we continue to do things like this, we shall destroy ourselves.

I think we should follow the rules. Don't throw food away. We try to make a good habit. I know it's our duty to save water. So we should save water and protect eh environment.

Now water pollution is the most serious problem. We can't live without water. Water is life. So I think we should do something go save and protect water.

One: turn off the shower while you are washing your hair.

Two: we can use the water that has washed vegetables to water plants

Three: When you see someone is wasting water, e over and stop him.

Four: Don't pour the rubbish into the river.

Though these are small things to protect water, I still thin they're important.Airpollutionisoneofthemajorproblemsofthemodernworld.Agreatdealofenergyisneededtorunthefactoriesofmodernindustrialnations.

Automobile,trains,planesandbussesneedenergy,too.Nearlyallofthisenergyisproducedbyburningfuels.Theburningproduceswastes

,someofwhichremainintheair,causingairpollution.

Scientistsarefindingwaystostopairpollutionespeciallyinbigindustrialareasanddensely-populatedcities.Theyarestudyingnewwaysofgeneratingelectricitythatmaybelessdamagingtotheenvironment.Inthemeantime,

manypowerplantsarebeingmodernizedtogiveofflesspollutedmaterial.

Also,engineerstrytodesignandlocatenewpowerplantstodominimumdamagetotheenvironment.

However,itmaybethatwestillhavealongwaytogobeforewehavea"clean"world.

Nearlyallofthecountriesaretryinghardtopreventandcontrolairpollution.

Thereindeedseemstobenoendtotasksthatenvironmentalistswillberequiredtodo.Peoplewillcontinuallyfindnewwaystocontrolpollution.

Pollutionisbeingmoreandmoreseriousallovertheworld.Asisshowninthecartoon,t

wocarsaregivingoffwastegasandthreepeoplearetryingtoavoidbreathinginthepoisonousgasbymaskingtheirfacewiththeirhands.

Thepoisonousgassentoffbyfactories,domesticappliancesandautomobileshasmadetheairunhealthyforpeopletobreathe.

Thereisnodenyingthatautomobilesareindicationsofcivilization,progressanddevelopment;nevertheless,

automobilescausetheseriousproblemofairpollution.Scientistshavewarnedthatunlesseffectivemeasuresaretaken,

theproblemofpollutionwilleventuallygetoutofhand.Actually,peopleareshowingarealconcernovertheproblem.

Forexample,thereisanincreasinglyloudvoicefromthepublicforfirmactionagainstpollutionfromautomobiles.

Indeed,theearthisourhomeandwehavethedutytotakecareofitforourselvesandforourdescendants.Inmyopinion,

weshouldworkoutconcretesolutionstotheproblemofpollutionfrompoisonousgasgivenoffbyautomobiles.

Forexample,theautomobilesshouldbeequippedwithadevicewhichcandisposeofwastegassoastopreventitfrompollutingair.

Onlyinthiswaycanwereallysolvetheproblemofairpollutioncausedbyautomobiles.

作文二:《关于空气污染的英语作文》3400字

篇一:空气污染 Air Pollution

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.

在过去的几十年中,我们的地球发生了很大变化,但是是往坏的方向。在这些变化中,大量汽车和煤燃烧产生的空气污染是最为严重的。严重的空气污染警告人类,我们无休止的的生产和使用汽车给我们的地球带来了沉重的负荷。然而,随着城市化的加深,汽车的需求量也越大,这会导致空气污染更严重。因此,我们应该采取以下行动。首先,我们应该运用最尖端的技术,以新型能源作为化石燃料的替代品。其次,努力寻找可能的环境友好型交通方式。这样城市居民就可以减少对汽车的依赖。简而言之,人类应该承担空气污染的责任,寻找解决这一问题的方法。

篇二:汽车与环境空气污染Car and Pollution

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, Chinese people 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。

篇三:关于空气污染的英语作文

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 bee 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 won't 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.

作文三:《关于汽车污染环境的英语作文》400字

关于汽车污染环境的英语作文

关于汽车污染环境的英语作文 our lives. Americans, for example, have to cut down on the number of their total cars.They are encouraged to use bicycles, which are thought to help keep the air clean.

But this change does not e easily. A large number of workers may find themselves without jobs if a car factory cioses down. Thus the problem of air pollution would bee less important than that of unemployment. Although cars have led us to a better life, they have also brought us new problems.

作文四:《关于空气污染的英语作文素材》500字

作文素材(Air Pollution)

空气污染 Air Pollution

雾霾Fog and Haze

建筑粉尘Construction dust

汽车尾气VehicleExhaust

全球变暖Global Warming

碳排放 Carbon Emission

工厂排放Factory Emission

温室效应 Greenhouse Effect

海平面上升 Sea Level Rise

冰盖融化 Ice Sheet Melts

提高平均气温Raise our average temperature 固体污染物Solid Pollutant

有害物质Harmful Substances

低碳生活方式low-carbon lifestyle

节约能源 Save Energy

开发和使用新能源Develop & Use Alternative Energy 使用可再生能源 Apply the Renewable Energy 太阳能Solar Energy

风能 Wind Energy

限制、控制和减少排放 Limit, Control & Reduce Emission

If you find a path without obstacles, it probably doesn't lead anywhere.

作文五:《关于写污染啊污染的作文》400字

本文关键字:

污染啊污染,这个人类可恶的公害,险些把人类清洁的家变得“暗无天日”。    污染带着浑浊的污水、堆积如山的垃圾、满天的灰尘向人类袭击,想吞噬整个地球,想以弥漫的灰尘把地球层层包裹住,想占领整个地球,再向别的星球袭击,进行占领、破坏。它们的这种奢望,我们一定要阻止,不能让它们得逞。污染的本身来源于人类的乱扔乱用,乱破坏的不良行为。只要我们改掉这些不良行为,共同保护,一起改善我们的家园,地球就会得到一层保护网,污染不管怎样也不会沾到地球的边缘。污染是多么可恶,多么惹人讨厌,想吞噬我们的家园没有那么容易,只要我们团结起来共同爱护地球,让地球永远保持干净、清洁,污染就休想靠近我们的家园。    污染啊污染,这个可恶的公害,想把人类清洁的家园变得“暗无天日”,不过,只要我们每一个人养成不乱扔纸屑,不乱破坏,保持清洁、干净的好习惯,污染你就无从下手,我们美丽的家园将更加分外妖娆。

作文六:《工厂污染的英语作文》1100字

篇二:关于(环境)工厂污染的英语作文

Today the quality of our natural environment has bee an important issue. The world population is rising so quickly

that the world has bee too crowded.

今天,我们的自然环境质量已经成为一个重要问题。世界人口增长如此之快,世界已变得过于拥挤。

We are using up our natural resources and at the same time polluting our environment with dangerous chemicals. If we

continue to do this, life on earth cannot survive.

我们正在利用我们的自然资源,同时污染的危险化学品的环境。如果我们继续做这个地球上,生活无法生存。

Concerned people have made some progress in environmental protection. Governments of many countries have established

laws to protect the air, forests and sea resources and to stop environmental pollution.

有关人士取得了一些在环境保护方面的进展。许多国家的政府已建立了法律保护,空气,森林和海洋资源,并停止对环境的污染。

Still more measures should be taken to solve environmental problems. People should be further educated to recognize

the importance of the problems, to use modern methods of birth control, to conserve our natural resources and recycle our

products. We are sure that we can have a better and cleaner place in the future.

但更应采取措施来解决环境问题。人们应该进一步的教育,认识到问题的重要性,使用现代节育方法,以保护我们的天然资源和循环利用我们

的产品。我们相信,我们可以有一个更加美好,更清洁的地方。

作文七:《空气污染的英语作文》3400字

篇一:空气污染的英语作文

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.

篇二:Air Pollution

Pollution is being 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.

篇三:空气污染的英语作文

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 pletely 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.

作文八:《关于环境污染的作文》1100字

关于环境污染的作文(一)

今天我调查了我们周围的环境污染问题。

环境污染是指人类直接向环境排放超过其自净能力的物质或能量,对人类造成了不利的现象。

我把调查到的污染分成四类:

⑴水污染,一些工厂排出来的废水流到了河里,造成了河流的污染。

⑵大气污染,如:有的发电厂用煤发电,燃放出的气体,对我们的环境有很在的污染。

⑶噪音污染,有的工厂在生产操作过程中,产生了一些对周围居民的工作、学习、生活的噪音。

⑷白色污染,白色污染对我们周围的生活环境有很大影响。在各种公共场所到处都能看见废弃的塑料袋子。

以后,我要从我做起,不使用一次性塑料袋,爱护环境,学好科学知识,让垃圾变废为宝,让环境越来越好。

关于环境污染的作文(二)

主要的环境污染源是:一、工厂排出的废烟、废气、废水、废渣和噪音。

二、人们在生活中排出的废烟、废气、噪音、脏水、垃圾。

三、交通用具所以的燃气车辆、轮船、飞机等。

四、大量使用化肥、杀虫剂、除草剂等化学物质。

五、矿山里的废水、废渣。

人们一直以为地球上的水、空气是无穷无尽的,所以不担心把千万吨的废气送到天空去,又把数以亿吨的垃圾倒进江河湖海。大家都认为世界这么大,这一点废物算什么?我们错了,其实地球虽然大(半径6300多公里),但是生物只能生存在中间约3公里的范围内,人们竟肆意地从四面八方来污染这有限的生活环境。

所以我们要保护大自然,所以我们要少用一次性筷子,纸杯,塑料袋……

我们要给他们一个小小的提示“希望大家爱护大自然,因为保护大自然就是保护自己”。

关于环境污染的作文(三)

保护环境是我们人人都要尽的责任。在我们居住的小区中,白墙上都会醒目的提示:保护家园环境,人人都有责任这句简单的时刻警示着我们。

有一次我去姥姥家小区的假山上玩,听到两个老奶奶坐在石椅上说:“听说这几个大土坑是要放大柱子的。”说着手边指向了那个装满垃圾的大土坑。我的目光也跟了过去,大吃一惊。只见那个大图坑简直是脏极了,有吃剩的雪糕、残留着辣油的塑料袋……看上去实在是太恶心了,简直可以起名字叫“臭垃圾坑”了,我赶紧离开那儿。(m.lz13.)

想想以前,假山上草丛郁郁葱葱,花香扑鼻而来。夏天我们在草丛里捉蛐蛐,听着那蟋蟀的歌声也是一种美好,而现在呢?估计连蛐蛐都都不愿意在这里安家了。假山上我们的欢笑也消失了。如果我是那个大土坑,人们把垃圾扔过来时,我多烦心呀!所以我们一定要爱护我们的家园环境。

我觉得保护环境就是看到一张纸把它捡起来,看到垃圾袋把它扔到垃圾箱内。其实还有很多我们力所能及的小事,让我们共同保护这美好、和谐的大家园吧!

*  环境污染的作文

*  怎样保护环境的作文

*  如何保护环境的作文

作文九:《关于环境污染的作文》1700字

关于环境污染的作文一:环境污染

随着科技的迅猛发展,工业水平不断提高,世界面临着巨大的考验。

世界人口的增长愈加迅速,人口吃饭便也随之成了一个大难题。解决人口吃饭问题的根本方法就是扩充耕地面积,而这就要砍伐森林,生命平衡便得不到根本的保障,沙尘暴会随时光临我们的美好家园。

人口的增长导致了淡水资源的紧缺,而这却还得不到人类的重视,节约用水不只是口号,那些浪费水的人们啊,你们好好地想一想吧,你们认为自己浪费一滴半点的水无所谓,全世界多少人?每人要是都浪费一毫升水,那也许是人类的一次大的灾难啊!

工业水平的提高,工业废水和大气也愈来愈多,废水无处存,就排入江河湖泊,大气没经过净化处理,就排入大气之中。我们脆弱的地球,无情的人们,你们又怎样忍心破坏妈妈的血液呢?

白色污染成为我们的心头大患。人们正在全力阻止这严重的局面,用布袋购物,可是又能改变些什么呢?“早知如此,何必当初”?人们啊,赶快醒来吧,保护环境,减少白色污染,人人有责!

土地沙漠化也逐渐登上了舞台。人们无休止的开垦反而产生了副作用。土地不再适应种植,人们又来开垦,这时,被废弃的土地也就成了半沙漠化的土地,沙漠何愁不能发展呢?

世界上的所有的人们,举起环保的旗帜,来保护世界环境吧,让淡水永存,让人类永存!

关于环境污染的作文二:环境污染

这里有几片茂密的森林,森林之间有一条清澈的小河,就就像一条蓝色的绸带。

可是 ,渐渐地周围的森林被砍伐的所剩无几了,小河中原来清澈的河水也不见了踪影,却变成了臭气熏天的臭水沟。这都因为人类无情的破坏!小燕子对小鱼说:“人类太可恶了,不仅把地球母亲弄得千疮百孔,还把我们赖以生存的家园给破坏了!“小鱼说道:是呀,因为人类 ,现在的水质变得越来越差了,我简直活不下去了。还因为人类工厂的废气排放,让我再也看不到湛蓝的天空了!”

当我看到了这个情景,我攥紧拳头,心里又伤心又愤怒,我想:那些人们有良心吗?请你们珍惜地球吧!

关于环境污染的作文三:环境污染

我在看了《十万个为什么》中太阳会有耀斑之后,做了一个这样的梦……

在飞船上的2040年,我已经成为了飞船有名的科学家了。要解决现在飞船上最严峻的问题——环境污染。

在2030年时,养育世间万物的太阳居然爆炸了,吞噬了地球。我们造好了飞船上的最后一个零件,飞出了地球。日复一日,年复一年,我们不断修复飞船,但因为当时走得匆忙,只带了一些菜子和猪肉。除了造飞船时种下的草,就只剩一棵树了。

十年过去了,草基本都死了,整个飞船进入了严重污染期:垃圾没地方分解,吸收;废水也不能被自然净化;氧气也越来越少……

在这时,我提取了草,树,菜,猪的基因,合成了一种叫“草树菜猪”的东西。这种东西可种植,长出来后是树一样高的草。煮熟后,是一种有菜的颜色和营养,有猪的香味和口感的食物。未煮熟的时候十分坚硬,可以造房子。也可以像草一样给人们提供氧气。

那么大一个飞船一棵“草树菜猪”怎么够呢?我用克隆机克隆了成千上万的“草树菜猪”,种植到飞船的每一个角落。

经过不懈努力,终于,污染危机解除了。

虽然这只是一个梦,但是我们如果还不加节制的污染,浪费,这会不会变成真的呢?

我们从现在开始保护我们的地球妈妈吧!

关于环境污染的作文四:环境污染

人类把许许多多的风景都污染了。比如:海水里、森林里、草坪里等等。

我想知道空气中粒子状污染物是怎么形成的:空气中的粒子状污染物数量大成分复杂,它本身可以是有毒物质或是其他污染的运栽体。其主要来源于煤及其他燃料的不完全燃烧而排出的煤烟。工业生产过程中产生的灰尘、建筑和交通扬尘、风的扬尘等,以及气态污染物物理化学反应形成的盐类颗粒物。在空气污染检测中,粒子状污染物的检测项目主要为总悬浮颗粒物、自然降尘和飘尘。

我想对人类说:希望你们要爱抚花草树木,不要再污染环境了!

关于环境污染的作文五:环境污染

人们一直以为地球上的陆地、空气是无穷无尽的,所以从不担心把千万吨废气送到天空去,又把数以亿吨计的垃圾倒进江河湖海。大家都认为世界这么大,这一点废物算什么?我们错了,其实地球虽大(半径6300多公里),但生物只能在海拔8千米到海底11千米的范围内生活,而占了95%的生物都只能生存在中间约3公里的范围内,人竟肆意地从三方面来弄污这有限的生活环境。

我觉得我们应该保护地球,因为没地球就没有我们人类,所以我们必须保护地球。保护地球是我们的责任!

作文十:《关于大气污染的作文》2900字

关于大气污染的作文一:大气污染

所谓“大气污染”是指有害物质进入大气,对人类和生物造成危害的现象。如果对它不加以控制和防治,将严重的破坏生态系统和人类生存条件。

大气污染有的是由于森林火灾、火山爆发等自然因素造成的;有的则是由汽车尾气、工业废气、烟尘、爆炸等人为因素造成的,其中人为因素对大气的污染是主要的,尤其是现代交通运输和工业生产对城市大气造成的污染更为严重。因此人们对大气污染问题越来越关切。

造成大气污染的物质有:一氧化炭co、二氧化硫so2、一氧化氮no、臭氧o3以及烟尘、盐粒、花粉、细菌、苞子等。

距地面几十米的近地面层大气,是人类和生物的生存空间。这一层空气质量的好坏直接影响着人类的生产和生活。近年来,由于交通运输业的发展,排放出的大量汽车尾气与空气中的一些物质成分发生化学反应,生成对人体十分有害的一氧化氮、臭氧 、乙醛等新物质。

悬浮在大气中的各种气溶胶粒子,按其大小可分为降尘和飘尘。其中降尘的粒子较大,直径大于10微米,它的自然沉降率较快。它与人类支气管炎的死亡率和农业减产有很大关系;飘尘粒子较小,直径一般在0.1—1.0微米。其自然沉降率很小,故悬浮在大气中的生命史较长。随着粒子的减小有毒元素的浓度将增加。通常小于0.3微米的飘尘能直接吸入肺泡,如长期积累,会损害呼吸机能,引起哮喘、 肺气肿、 矽肺和肺癌等不治之症。由于飘尘的污染期长和毒性强,因此它的危害性大。当大气中气溶胶粒子增加到一定程度以后,就会出现烟雾弥漫,能见度降低,太阳辐射减弱等现象。

近地面层大气污染程度与气象条件密切相关,存在着明显的季节变化和日变化。一般冬季的早晨和傍晚在无风的天气条件下空气污染最为严重。夏季由于空气层结不稳定,污染物易向高空扩散,因此一般污染不会太严重。

关于大气污染的作文二:空气污染

今天早上,我一觉醒来,发现天空是湛蓝的,是那种温柔的澜,纯洁的蓝。蓝的让人陶醉,让人心旷神怡。

今天的天这样蓝,是因为经过了暴风雨的清洁,否则它还会是灰蒙蒙的。为什么会这样呢?爸爸妈妈小时侯,天还是蓝蓝的。这一切的幕后凶手就是——环境污染。

工厂在工作时产生的废气都是没有经过处理就直接排向蓝天,企业燃用汽油产生的废气也弥散在空中。同时随着经济的发展和人口增多,能源消耗量增加,产生的废气也是原来的许多倍。汽车、摩托车等机动车数量迅速增加,尾气排放量加大。这些废气中含有大量二氧化碳和烟尘。由此造成严重的环境污染。而环境污染又会造成大气层污染,大气层污染导致天空变灰。

空气污染的害处不单单只是天空变灰,有时还会有生命危险。

1984年12月3日凌晨,震惊世界的印度博帕尔公害事件发生。午夜,坐落在博帕尔市郊的一所杀虫剂厂——一座储存四十五吨化学有害物质的杀虫剂厂的保安闸出现毒气泄漏事故。

不一会儿就有毒烟雾袭向这个城市。形成了一个方圆25英里的毒雾笼罩区。先是近邻的两个小镇上,有数百人在睡梦中死亡;接着是火车站里的一些乞丐死亡。毒雾大幅度的扩散时,居民们惊慌失措,有的以为是“原子弹爆炸”,有的以为是“地震发生”,有的以为是“世界末日的来临”。一周后,有2500人死于这场污染事故,另有1000多人危在旦夕,3000多人病入膏肓。有15万人因受污染危害而进入医院就诊,事故发生4天后,受害的病人还以每分钟一人的速度增加。这次事故还使20多万人双目失明。

可见,空气污染的危害有多么大!为了缓解空气污染,请大家从身边的小事做起,不要在野外烧火,尽量不要用尾气排放量太高的汽车……相信有了大家的支持,空气污染造成的危害一定会消失!!!

关于大气污染的作文三:大气污染

健康,包围,烟雾,但任何事情,气体,杂质,吸收,有毒,努力,昏了过去

我们都知道,空气清新,是非常重要的身体健康。不管你去哪里,不管你做什么,你总是由气体,我们称之为空海所包围。如果空气中有杂质,它们可能会吸收我们的身体,使我们生病。我们需要清洁的空气,但不幸的是,空气污染是目前全球,尤其是在城市。

许多大城市是什么,但无污染。我们的城市有很多工厂,我们需要使食品,衣物和其他东西。这些工厂每年都倒在空气中的烟雾进入亿万吨。发电厂燃烧煤和房屋,大大加重了空气污染。此外,在城市有更多的汽车企业。一旦走上街头,他们将在新鲜空气和有毒气体取代它。

我国正努力防止和控制空气污染。只要每个公民也意识到它的重要性,使参加的努力,总有一天人们会很快在只有清新的空气。然后,阳光将不再是由黑,烟灰。

关于大气污染的作文四:空气污染真头疼

现在,空气污染是一个很让人头疼的问题,我的家乡临汾就是一个空气污染很严重的城市,我为我的家乡的环境感到很揪心。

其实,空气污染的主要原因有汽车尾气、燃烧物品、开采矿产等。最为严重的就是开采矿产。大部

分城市都有一些矿产资源。在提炼过程中,会产生一氧化碳、总悬浮颗粒物、二氧化硫等对人类健康有害的物质。汽车尾气的危害是大家都知道的,但用较洁净的天然气燃烧,也会产生二氧化碳,使气候变暖。长期生活在空气被污染的环境下,会引发哮喘、喘鸣等疾病,危害生命。

我的家乡临汾,以前曾有“花果城”的美称。可现在“花果城”变成了以“脏、乱、差”闻名的城市。就是因为过多的挖煤、炼钢、发电。2002年,河西电厂向市区排放了2万多吨粉尘颗粒物、2600多吨二氧化硫。这还只是一部分。还有一个“最魁祸首”是开采煤矿、铁矿。因为开采煤矿、铁矿会产生总悬浮颗粒物、二氧化硫。

我自己也深有体会。每天早晨起来,大多看到的都是灰蒙蒙的天空以及飞扬的尘土。太阳每天出来的时间也推迟到了9点30分。我都不敢穿浅色衣服,因为假如穿浅色衣服的话,回家后衣服上可以“堆尘土人”了;放学回家后,必须要擦一遍桌子,才可以写作业,不然作业就会穿上“尘土外衣”了;吃完饭如果把剩下的菜放在桌子上,那么菜就会盖上泥被子……

临汾正在治理中,我相信临汾一定可以拾回它以前的“花果城”的称号。虽然这个过程不知道会有多久,但是我很有信心,我的家乡一定可以回到我心目中的样子,那是一个天蓝气清,没有污染的美丽的花果之乡。

关于大气污染的作文五:空气污染

由于人类活动或自然过程,向大气中排进了一些有害物质(称污染物),当排入量够多(污染物浓度达一定限度),则使原来洁净空气的品质下降,若这种情况维持时间 够长,便会对人类、动物、植物和大气中的物品产生危害和不良影响,这种大气状态 称为空气污染。组成空气污染有三个要素:污染源、污染物浓度、对人和生物有危害。

洁净大气是人类赖于生存的必要条件之一,一个人在五个星期内不吃饭或5天内不 喝水,尚能维持生命,但超过5分钟不呼吸空气,便会死亡,人体每天要吸10—12立方 米的空气。由此可见,消除空气污染或保持污染浓度低于某个限度之下,是何等重要。

大气有一定的自净能力,现代大工业发展以前,因自然过程等排进大气的污染物, 与由大气自净过程而从大气移除的量基本平衡。但是20世纪五、六十年代以后,现代 大工业迅速发展,人类排进大气的污染物量大大超过了大气的自净能力,致使目前全 球大气都遭到不同程度的污染。这引起了各国的关注,我国已把保护环境(大气环境、 水环境等)作为国家的基本国策。