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关于解决空气污染英语作文合集20篇

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环境污染的英语

全文共 2774 字

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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。

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更多相似作文

篇1:白色污染的英语作文

全文共 984 字

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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。

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篇2:环境污染英语作文150字

全文共 882 字

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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.

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篇3:环境污染现象英语

全文共 1568 字

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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

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篇4:我们周围的污染中考英语作文_初中英语作文1000字

全文共 913 字

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Pollution around us

In recent years our life is becoming better and better. But our environment is becoming worse and worse. Its very bad for our life. Now many people have air-conditioners and cars, they produce (give off ) waste gas. More and more trees are being cut down. There are so much sand on the earth (leaving only sand ) . We often see factories pour waste into rivers or lakes. Water in the river is quite dirty. We havent enough clean water to drink in cities. Now we are in danger. Its very necessary and important to protect the environment well. I think if everyone tries his best to protect the environment, the world will become much more beautiful , and our life will be better and better .

我们周围的污染

近年来我们的生活越来越好。但是,我们的环境越来越糟。它对我们的生活很糟糕。现在很多人都有空调和汽车,他们生产的(出)废气。越来越多的树被砍伐。有那么多的沙子在地球(只留下沙)。我们经常看到工厂把废水倒入河流或湖泊。河里的水很脏。我们没有足够的干净的水的城市。现在我们有危险。这是非常必要和重要的保护好环境。我想,如果每个人都尽自己最大的努力去保护环境,世界将变得更加美丽,我们的生活会越来越好。

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篇5:环境污染英语作文150字

全文共 517 字

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now, our side of the car constant more up, the environment also increasingly worse! that the air around us there are many harmful substances. therefore, we want to sue around things start to do. for example, we can go to school by bike or walk, it can exercise. if you have time can use less elevator, many climb stairs. we can not only physical exercise, but also to protect our environment.

现在,我们身边的汽车不断的多了起来,环境也越来越糟糕!以至于我们周围的空气有很多有害物质.所以,我们要苏身边的小事做起.比如,我们可以骑自行车上学或者步行,这样还可以锻炼身体.有时间的话可以少用电梯,多爬楼梯.我们不仅能锻炼身体,也能保护我们的环境.

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篇6:有关空气污染的英语

全文共 1131 字

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Health, surrounded by, smog, anything but, gases, impurities, absorb, poisonous, try hard, blacked out.

We all know that clean air is important to good health. Wherever you go and whatever you do, you are always surrounded by a sea of gases that we call air.

If there are impurities in the air, they may be absorbed by our bodies and make us ill.

We need clean air, but unfortunately, air pollution is globally present, especially in cities.

Many large cities are anything but pollution-free. Our cities have many factories, which we need to make food, clothing and other things.

Every year these factories pour millions upon millions of tons of smog into air.

Power plants and houses that burn coal add greatly to air pollution. Besides, there are more cars in cities now.

Once out on the streets, they will take in fresh air and replace it with poisonous gases.

Our country is trying hard to prevent and control air pollution. As long as every citizen also realizes its importance and makes join efforts, the day will come soon when people will take in only clean air.

Then, the sunlight will no longer be blackened out by smoke and soot.

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篇7:环境污染的英语

全文共 717 字

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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

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篇8:汽车污染英语作文

全文共 555 字

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In general, there are two way of traveling, private cars and public transportation.

Chinese people should regard public transportation as their first traveling opinion.

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.

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.

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篇9:环境污染英语作文附翻译

全文共 1575 字

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Environmental Pollution

Write a passage with the words and phrases given:

the problem of pollution, cause, artificial substances, release, waste products, industrial production, consumption of goods, bring it under control, agriculture, chemical substancea.

Environmental Pollution

I read a piece of news recently. It says that in Japan marly businessmen ave selling fresh air to customers.and now it is becoming more and more popular. Why? --Fresh air is getting less and less in Japan, and so is it in the U. S. A.

In fact, environmental pollution is a very serious problem the whole world is facing.

it is mainly caused by the waste products released from artificial substances, industrial

production and increased consumption of goods. Bedsides, the use of chemical substances

in agriculture also causes environmental pollution. Look at the sky, you can see that dense smoke is being released from the high and big chimneys; those dirty and poisonous substances are flowing into the rivers that we use for drinking water and millions of tons of waste products are heaping around us.

How to change this condition? More and more countries are trying to work out some effective means to bring it under control, but no great success has been made.

环境污染

最近我读了一则消息说在日本,许多商人向顾客出售新鲜空气,现在这种情况越演越烈,Environmental Pollution-环境污染,四六级写作《Environmental Pollution-环境污染》。为什么呢? 因为在日本新鲜空气越来越少,在美国也是如此。

事实上,环境污染是整个世界正在面临的一个严重问题。这主要是由于人造物质,工业生产过程中所产生的废料以及消费商品的增长造成的。另外,在农业中使用化学物品也造成了环境污染。看看天空,你可以看到浓烟从高大的烟囱中释放出来,这些脏而有毒的物质流入我们赖以饮水的河流,数百万吨废物正堆积在我们周围。

怎样改变这种状况呢?越来越多的国家正在试图拟定出一些有效措施控制环境污染,但至今成效不大。

[环境污染英语作文附翻译

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篇10:有关污染英语作文高中

全文共 611 字

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In my hometown, the air is polluted seriously. However, in recent years,

the pollution gets from bad to worse, because of the increasing number of

private cars. Especially during the rush hours, too many private vehicles move

slowly on narrow roads, emitting a large amount of waste gas. Moreover, the

poisonous gas sent by the nearby factories is also one of the main causes of

pollution. Therefore, it’s demanded that immediate and effective measures must

be taken to restrict private cars and public transportation must be developed to

the largest extent. Besides, we should use renewable and clean energy

recourses.

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篇11:有关污染英语作文高中

全文共 662 字

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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.

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篇12:雅思习作一:靠提高汽油价格解决交通和污染问题

全文共 1878 字

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To solve the worsening traffic and pollution problems, some people claim that the best way to do this is through increasing the petrol price. Superficially, the proposal sounds attractive and sensible, but when carefully weighing it, it is far from being reasonable and practical.

Prohibitive petrol prices aim to do something to stop the increasing use of cars. Some people hold that view that the consumption of the petrol would decline by increasing the price the petrol, ultimately save energy, cut carbon dioxide emission and pollution and improve the traffic situation.

Other people argue that the idea of increasing the price of petrol may create more problems than it solves. Firstly, controlling the price of petrol on purpose is a brazen infringement of commercial rules of market economy and possibly would results in economic crisis. The price should be decided by the need and supply rather than government policy. Moreover, people’s daily life will be inevitably affected by the so called best solution. It could make profound changes in modern lifestyle and bring people a lot of inconvenience. For example, people might prefer staying at home and watching TV to visiting their old parents and friends or do some aerobic exercise. This may lead to a series of problem, such as lack of communication with the outside and poor health. In addition, it is unfair considering that rich people would still drive freely because they could afford to do so.

In fact we have other much more effective measures to take. For instance, producing new type of “green” cars which use solar energy would reduce the pollution. Furthermore, Government should develop an efficient mass transit system and encourage people to use pubic transport like bus, train and underground to relieve the traffic congestion. I maintain that the increase of price of petrol is the last choose for us.

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篇13:大气污染小学生我发现空气被污染了

全文共 247 字

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今天早上起床,我洗漱了一下,吃了饭,到了中午我去楼下玩。

一下午我看到我的朋友们在放鞭炮,我也闻到了浓浓的火药味,那味可真是呛啊!我们玩的周围都是火药味。尽管有那么呛,但还是有许多人下去玩,继续放鞭炮。我因为感到太呛,所以就跑上楼写作业去了。连续好几天都是那样,只有朋友叫我的时候我才下去玩一会。他们问我:“你这几天怎么不下去玩呢?”我说:“难道你们这几天在楼下玩都感觉不到很呛吗?我是因为你们这样放鞭炮把空气污染了,我感到很呛,所以不想下去。”

我想我如果少放一些鞭炮,空气就是会少一些污染了吧!

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篇14:环境与污染的英语

全文共 2664 字

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In recent years,we can clearlyfeelthe environment around usis more and moreobviouspollution,environmentalsafety problems have beenvery serious.Because of ourpreviouspolicy isheavy economic development,light environmental protection,resulting inenvironmental 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 atmosphereof security,since the middle of the twentieth Century,industry andthe rapid development of transportation,causingairpollution is increasing.Air pollutionisharmful to human health,but alsoaffectthe growth of plants and animals,destruction ofbuilding materials,serious when canalter the earths climate.According to the survey,China each yearfrom air pollutionand economiclosses 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,waterpollution in Chinais very serious,widespread around thedrinking watersafety problems,a direct threat tohuman and animalsurvival.In recent years,although theinvestmentfund managementa lot ofHuaiheand other waters,but the effect is not obvious,the overall situationis 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 biologicalsafety,the invasion of alien speciesmass,a serious threat to thebiological diversity of china.In fact,the blind introduction of foreign species,damage the environmentbalance,serious and evenlead to disastrous consequences.At the same time,because ofthe destruction of the ecological environmentandwildlifehunting,biologicalextinctionrateis 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,theland desertification and soil erosionis very serious.In addition,the cultivated landquality in Chinadecreased very rapidly,at the same time,because of the seriousland pollutionphenomenoncaused byexcessive use ofpesticides,is directly related tofood safety problemof residents in our country.China is adeveloping country,in the face ofenvironmental pollutionpressure not only fromChinaitself,andappliedpressurefromsome developed countries abroad.Therefore the development ofeconomy andenvironmentis a need for us toissuelongface,and it alsoneed to rely on theparticipationof 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。

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篇15:环境污染原因英语作文

全文共 2369 字

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很多年以来,环境日益恶化。我们在提高生活水平的同时,也在导致环境污染。以下内容是小编为您精心整理的环境污染原因英语作文,欢迎参考!

环境污染原因英语作文一

The environment is everything around us,for example,air,water,animals,plants,buildings and so on.They all affect us in many ways and closely related to our lives.People cant live without the environment. Everybody needs to breathe air,drink water and eat food every day.We burn coal to keep warm,and we use wood to make paper.As a result,we become the part of the environment. The environment has been getting wores and wores for many years.We have been upgrading our living standard, meanwhile the environment has been polluted.Somke form factory chimneys pollutesthe air.Machines and engines make noises that annoy us constantly.Animals are homeless because the forcests are decreasing every minute.Streets are crowded with people and vehicles.The environment painful for us to live in it now.So its time to solve those problems.

Fortunately,it isnt too late to correct our mistake.People are coming to realiza the importance of the environment.We have begun to try our best to improve it.Laws are being made dealing with air, water and noise pollution.The river be bright,the sky will be clear,the flowers will be beautiful,and the sunbeam will be dazzling and pretty.We believe that we wil be able to save our environment and live in a better world

环境围绕我们身边,例如:空气、水、动物、建筑等。它们从各个方面影响着我们的生活,与我们的生活密切相关,人们离开环境就无法生存。每人每天都要呼吸、喝水和吃东西。我们少煤取暖、用木材造纸。结果,我们也成为环境的一部分。

很多年以来,环境日益恶化。我们在提高生活水平的同时,也在导致环境污染。从工厂烟囱里冒出来的烟污染空气;机器和引擎经常发出恼人的噪音。因为森林每分钟都在减少,使动物们无家可归。街道上挤满了人和车辆。环境在我们的生活中是最重要的,但是现在它已经让人们讨厌。所以,该是解决这些问题的时候了。

幸运的是,现在改正错误还不晚。人们意识到环境的重要性。我们已经开始尽力改善环境。法律也开始涉及到空气、水和噪音等问题。将来,河流会更清澈,天空会更晴朗,花朵会更鲜艳,阳光会更灿烂、更温暖。保护环境会使我们生活在一个更加美好的世界中。

环境污染原因英语作文二

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

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篇16:控制环境污染英语作文

全文共 1189 字

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Control Environmental Pollution

Today, as the development of the technology, people live a much better life than before, the average wage is promoted highly. The economy develops at the cost of polluting the environment, we can see the pollution everywhere, like the river water is dirty, the situation is so serious that we must take some action to control the environmental pollution. First, we should not throw away the rubbish, whenever we have rubbish at hand, we should keep the habit to throw it into the dustbin, sometimes the garbage can be recycled. Second, the government should make some measure to punish the industry which is not deal with the pollution well. With the government’s intervention, the businessmen will pay special attention to the pollution and dare not to ignore it. Protecting the environment needs everyone’s effort, to ourselves and our offspring’s health, we must take action to protect the environment.

控制环境污染

今天,随着科技的发展,人们比之前生活得更好,平均工资也大幅度提升。经济的发展却是以污染环境为代价,我们随处可见污染,比如河水很脏,这样的情形是如此的严重,我们必须采取措施来控制环境的污染。第一,我们不应该乱扔垃圾,无论何时我们手中有垃圾,应该养成扔进垃圾箱的习惯,有时候垃圾是可以循环利用的。第二,政府应该采取一些措施来惩罚那么不处理好污染的产业。有了政府的干预,商家就会格外注意污染,不敢忽视。保护环境需要每个人的努力,为了我们和后代的健康,我们必须采取措施来保护环境。

[控制环境污染英语作文

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篇17:中考经典话题英语作文:大气污染

全文共 1442 字

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导语:空气污染是当今世界的主要问题之一。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!

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.

【参考译文】

空气污染是当今世界的主要问题之一。在现代化工业国家中,办工厂需要大量的能量。

汽车、火车、飞机和公共汽车需要能量,太。几乎所有这些能量都是由燃烧的燃料产生的。燃烧产生的废物,其中一些留在空气中,造成空气污染。

科学家们正在寻找办法来阻止空气污染,尤其是在大工业区和人口稠密的城市。

他们正在研究新的发电方式,这种方法对环境的破坏性更小。与此同时,许多发电厂正在现代化,以减少污染的物质。

同样,工程师们也正在努力设计新的发电厂,确定新的建厂地点,把对环境的危害减少到最低限度。然而,在我们拥有一个“干净”的世界之前,我们还有很长的路要走。几乎所有的国家都在努力防止和控制空气污染。

环境保护主义者的任务似乎没有尽头。人们会不断找到控制污染的新方法。

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篇18:大气污染小学生空气污染

全文共 1394 字

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空气污染是空气中某些物质的含量超过正常含量时,形成危害动、植物,影响其生存的现象。大气中C0、NH3、SO2、H2S、Cl2、03和N02等物质的正常含量均在百万分之一以下,对动、植物没有明显的不良影响。但19世纪以来,由于工业和交通运输的发展,那些物质大量排入大气,使空气污染日趋严重,影响到动、植物生命活动乃至人体健康。

污染物的来源,有的来自自然界(如火山喷出的烟灰),有的来自人类活动,其中工业、交通运输产生的废气是主要的污染源。空气污染可分为气体污染物和气溶胶状污染物两大类。气体污染物包括SO2,、03,、氮的氧化物以及碳氢化合物等;气溶胶污染物包括固体粒子(粉尘、烟尘气)和液体粒子(烟雾、雾气)两类。直接向空气中排放的污染物质,叫一次污染物。空气与污染物之间相互作用,产生反应,或空气中光化学反应引起的污染物变质所产生的新污染物,叫二次染物。

空气污染物种类很多,其中对农业威胁较大的约有十多种,如SO2、 HF、C12和光化学烟雾等。 气象条件对空气污染物的影响,水平风速和对流层高度是影响大气稀释空气污染物能力的两个气象要素。当农田上空主导风向来自污染源时,农田容易受有害气体的危害;风力强弱则影响空气污染物的扩散速度、污染物在空气中的浓度与平均风速成反比;通常午后湍流强,空气处于不稳定状态时,有利于扩散。夜间晴朗无风,近地面逆温层可使污染物在地面上停滞积聚,加剧空气污染的程度。另外,在准静止的高气压系统中,由于下沉逆温阻止下层排放的污染物扩散到大气上层,可形成近几百米厚的污染层。各国多次发生的严重空气污染事件大都是在低逆温层、风速小和无雨的气象条件出现几天之后形成的。

空气中一些污染物例,如SO2和悬浮于空气中的农药颗粒等,经雨水淋溶落到地面,又可污染土壤和植株。污染物对植物的危害,一般是通过气孔进入植物组织,干扰酶的作用,阻碍代谢机能,有的有毒物质在体内还可进一步分解或参与合成过程,产生新的有害物质,侵害细胞组织,抑制光合作用,使生长受阻、产量降低、品质变劣。其危害分为急性、慢性和不可见危害等。高浓度污染物造成急性伤害,引起产量显著下降,低浓度污染物,在长时间作用下,造成慢性危害,一般症状不明显。不可见危害只造成生理上的障碍,一般没有症状。

植物受空气污染危害的程度,主要受下列因素影响:污染物浓度和植物接触它的时间;植物本身的构造和所处的发育期以及环境条件的影响。如充足的光照,适宜的温度、良好的供水和空气湿润,较高的C02浓度等,都能导致叶片气孔开放,易受污染危害。 植物对大气的净化功能。不少植物具有一种以酶作催化剂的潜在解毒力,能够分解一些有毒物质,或形成一些大分子络合物,暂时可以降低毒性。1公顷森林,每年可吸滞灰尘30多吨,1公顷柳杉林,每年可吸收700多公斤S02,柑桔树的叶子可吸收储存硫达1%,青杨和桑树具有较强的吸收铅尘的能力,加拿大杨、银杏、榆树、梧桐、桉树等都是较好的“天然吸尘器”。草坪的吸附粉尘能力比裸露地面大几十倍。因此环境科学的任务之一,是要充分发挥植物净化大气的作用。选择吸收污染能力强的植物,扩大造林绿化面积,根据污染源位置、污染物汇集区的地形地势、风向和污染气体的季节分配,统一考虑构成一种包围式或隔离式的林带,使含尘气流在移动中途被树林吸收。另方面要研究采取控制或减少排放污染物的措施,以保证大气质量符合规定的标准。

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篇19:工业污染英语IndustrialPollutionCausesLandPollution

全文共 665 字

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Industrial pollution is clearly one of the biggest contributors to our polluted landscapes, at least here in the west. There are plenty of causes of land pollution, from urban and industrial ones, to rural and agricultural sources.

But which kinds of land pollution are the most important? And what can we realistically do to help prevent more pollution?

This part of the site gives an overview of some of the most important causes of land pollution, including industrial pollution.

There are also some recommendations for helping avoid domestic land pollution incidents.

Click here for some good reading on industrial pollution and land pollution causes and solutions.

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篇20:空气污染

全文共 712 字

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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!!!

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