环境污染问题及解决方案英语作文（优秀20篇）

目 的：针对水环境污染问题调查。

时 间：2011年3月8日

地 点：村里的池塘

调 查 人：___

指导老师：__、__

调查记录：

奶奶对我说：“以前农村里的池塘可干净了，小鱼水藻都看得见，小孩子都在塘里洗澡。旁边还种了许多桂花树。夏天在树下乘凉，秋天那淡淡的清香可好闻了。

可现在呢?池塘被养殖户承包去养珍珠，大量的鸡粪倒进塘里，塘边的蚌壳成堆，桂花树早已枯死，特别是到了夏天臭气熏天，行人望而生畏。

建议：

1. 承包户不用为了多挣钱而破环生态环境;

2. 有关部门是不是可以规划地区，让养殖户集中养殖。

我的建议可能很幼稚，也可能一时实现不了。但是，只要每个公民行动起来，团结一心。那么，我们的家园会变得更加美丽!

Everything grows in modern times, and it seems that nothing grows as quickly as population. Population keeps growing, and grows rapidly, firstly because peoples living standards keep going up, with better houses, better clothing, better food, secondly because people know how to preserve themselves so as to live longer, and thirdly

because they have modern medicine and medical care to ensure that usual diseases can be easily cured. There is another cause for the growth of population. Few countries or governments have realised the importance of family planning. On the contrary, some encourage child-birth.

Here are some examples of population growth from 1985 to 2000 (as anticipated).

Lima had 5.7 million people in 1985 but there were 9.1 million by 2000. Tianjin used to have 7. 9 million in 1985. By 2000 its population reached 9. 7 million. Such cities as London, Osaka, Moscow, Beijing, Karachi, Delhi, Jakarta, Seoul, and Teheran are having a similar population growth. We would not be shocked if all other cities have this rate. But some cities, like Calcutta, Shanghai, New York, and Sto Paulo boost their population even more quickly than the above-mentioned cities. Tokyo had 18.8 million in 1985. The year 2000 found 20.2 million Tokyo citizens. Mexico city had 17.3 million people in 1985, but as population specialists had predicted, that reached 25.8 million in 2000 !

The population problem is a universal concern nowadays. Any government is a failure if it does nothing about its population growth.

The protection of the border is not a new problem for us, and our government has long proposed clear targets for governance. As every ordinary person in real life, although it is impossible to work directly in environmental protection, we can start from small things and start from me. Can you raise your hand when you see the tap in the bathroom? When the battery runs out, can you classify it instead of throwing it away? How about when shopping doesnt use ultra-thin plastic bags? ...... Small things are small, but they reflect how much environmental awareness we have.

Recycling one ton of waste paper can regenerate 800 kg of paper, can save 17 tree. 20 waste recycling boxes can create a beautiful pen container. Recycling one glass bottle to save the energy, can make the bulb light for four hours. Recycling one aluminum can is to save the half oil cans. So we should place the garbage classification, reproduction by the relevant department after recycling reuse!

As long as we start from oneself, starts from the minor matter, everybody joint efforts, perseverance, we will be for the society, also a piece of clear water, blue sky for yourself, I hope everybody can voluntarily protect the environment, to make our environment more beautiful life.

境保护对我们来说并不是一个新问题，我国政府也早就提出了明确的治理目标。作为现实生活中的每一个普通人，虽然不可能都直接从事环保工作，但我们完全可以从小事做起，从我做起。当看到洗手间的水龙头在滴水时，是不是能够举手关上呢?当电池用完后能否分类收藏处理而不是随手扔掉呢?当购物时能否自觉不使用超薄塑料袋呢?……一件件小事虽然都很不起眼，但却体现我们究竟具备了多少环保意识。

回收1吨废纸可再造出800千克好纸,可以挽救17棵大树.回收20个废餐盒可以造出一个漂亮的笔筒.回收一个玻璃瓶节省的能量,可使灯泡亮4个小时.回收1个铝罐就等于节约了半个铝罐的石油.所以我们应将垃圾分类安放,由有关部门回收后再生产再利用!

只要我们从自己做起，从小事做起，大家共同努力，持之以恒，就一定能为社会、也为自己留下一片碧水蓝天，我希望人人都能自觉保护环境，让我们的生活环境更加美好。

The Importance of Trees

As we all know, trees are very useful. They are of great benefit to man as follows: First, trees provide us with wood and other products; Second, their roots can allow the rain to sink in and keep the soil, so they help to prevent droughts and floods. Trees can clean air and beautiful life.

Unfortunately, nowadays in many parts of the world lots of people fail to realize the importance of trees. They have cut trees down in large numbers without a plan,which makes the soil washed away. They dont know where there no trees, the rain washed away the surface of the soil and this causes floods.

We ought to plant trees each year and carefully look after new trees in order not to make the forest slowly disappear. Only in this way can we make the forest serve man forever.

树的重要性

众所周知，树有很多的用处，人类从中得到如下很多益处：第一，树给我们提供了木材和其他一些产品。第二，它们的根能让雨水渗进并保持乒壤以免被水冲走，所以树木可以预防旱灾和水灾。同时树木还帮我们净化空气，美化生活。

不幸的是，今天世界上很多地方人们没有意识到树木的重要性。他们无计划的大量砍伐树木，这样使得土壤被破坏，他们不知道那没有树的地方，一下雨就把土壤的表层冲走了，导致洪灾。

我们应该多植树，同时好好照顾小树，不要让森林一点点消失，只有这样才能让森林永远为人类服务。

近几十年来不断发展的科技使一部分人用它制造的对地球环境大大有害的没有经恰当处理过的工业废弃物的量开始以几何速度增长。

一百年前左右，这地方的工业废弃物对环境所造成的伤害还远不如现在那么严重------大部分的地方空气的API指数很低。而如今，一些大型工厂在工作时产生的很多二氧化硫与空气颗粒和汽车排放的尾气对空气也形成很大污染，会破坏大气层，导致酸雨形成，而且人吸入这种空气以后对身体也有很大影响，种种症状出现的可能性也大大地增加了。所以这类物质对整个地球实在是伤害不轻。另外，数以万斤计的相对来说对环境造成的伤害极大的垃圾如废电池、塑料袋、水银温度计、过期药品等正在被不断地成堆成堆地置于一些垃圾场，导致严重的土地污染，使那边周围树木花朵等植物无法生长，耕地也成为了不可能的事情。不仅如此，在那里工作的人们也会受到影响，导致身体状态不好。我经过一些施工地区与工厂的时候，一般都会问到一股燃烧过的橡胶产生的味道，很难闻。这也是一种有害气体。还有一些比燃烧橡胶更难闻的空气，似乎是重金属物质产生。我每逢这种情况都是快快走过，但就是这一分钟都不到的呼吸这种空气已使我感到头有点晕。而在里面工作的工人要天天不断地呼吸这种空气几个小时，这对人体伤害该有多大啊！

以上只是工业在大气层内对空气与土地形成的污染给人类带来的影响------大气层外“报废”了的卫星无规则地漂浮在地球附近会使人类发射的火箭有可能与之相撞导致损伤，使人类对外太空进行顺利的探索的难度增加。而且对于其中一部分来说，清除它们也不是一件容易之事------一些“报废”已久的卫星已碎成碎片，四处飘浮，要发射新的卫星去将它们“一网打尽”地回收很难。形成这种情况的原因是人类没有设定精密仪器来检测他们是否报废从而在他们报废的第一时间发射卫星将它们回收。

以上都是人类没有恰当地处理工业生产中所产生的衍生物。所以，读者，请恰当地处理你手中的工业产品及其衍生物。

How tokeep healthy /fit?

All of us want to be healthy. First，we should get enough sleep during the night. We can go to bed early and get up early. Staying up late is bad for our health. Second，we must have the right kinds of food. We should eat more fruit and vegetables and less meat. We should drink a lot of water. We should have healthy eating habits. Third，we should do more exercise to build up our bodies. Finally，we should be happy everyday. Because smile will make us younger。

That is my advice.I hope you are healthy and enjoy your life。

2.卫生健康饮食：健康一直是人们关注的问题我校要举行以“关爱健康”为题的主题班会，请根据下表内容谈谈你的看法，写一篇80字左右的演讲槁。 (1)保持健康的重要性;(2)保持健康的方法;(3)保持健康的结论;(4)你的看法。

How to keep healthy /fit?

Here is my advice about how to keep healthy/fit. As a middle shool student. first youd better do more exercise such as playing ball games ，running， swimming and jumping ropes(绳子)。Then you should pay attention to your diet or meals. Dont eat too much meat or suger，but more vegetables and fruit.Third you need enough sleep or rest . Next keep yourself happy.As people often say smiling makes younger.Last you mustnt drink wine or smoke .They are bad for your health. That is my advice.I hope you are healthy and enjoy your life。

保护环境的英语作文一：

Topic:

Environmental problems are as big as not for individual country or individual people to address。 In other word， we have reached the stage that environmental problems be solved for international view。 To what extent do you agree or disagree?

In recent years， many nations have bee more aware of the environmental issues each nation faces， such as air and water pollution。 The question is， are the environmental issues a national problem or an international problem? It is my belief that the environmental issues have grown to the point of being an international problem needing international cooperation to resolve。

Because of the differences in environmental policies， resources and technology， international cooperation could provide quicker results and have a greater impact on bringing resolution to environmental problems for nations of differing environmental policies and of lesser resources and technology。 By pooling international resources and technology to address the environmental problems， the disadvantaged nations are provided the assistance needed。 Otherwise their environmental conditions deteriorate ultimately affecting the resources and environment of the world as a whole。

One of the difficulities to an international resolution to environmental issues is the difference in individual nations view and policies toward environmental protection。 In order for international cooperation to occur and succeed， the nations of the world must submit themselved to international standards and supervision by an international mission elected by the participating nations of the world。 All members must agree to abide by the standards established。

The environmental issues facing each country are not unrelated to the well being of the rest of the world。 The impact is long term and international in scope。 Without international cooperation and agreement to address such environmental issues as glacial melting at the South Pole， depletion of the ozone layer， water pollution， air polution， etc。， the environmental conditions of the world will deteriorate to the detriment of every nation， not just those that ignore or lack the resources and technology to resolve their individual environmental problems。

As part of the same planet， it is the responsibility of each individual and nation to protect the global environment。 Only international cooperation will provide the timely solutions and the effectiveness needed to stop the deteriorating global environment。

保护环境的英语作文二：

As we all know， the environment around us is getting 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 are getting less and less。 Some factories are pouring dirty air into the sky。 The population is increasing faster and faster， resources are getting less and lessetc。 Not only does it affect our lives and health， it also has a great affection in the future。 People’s health has been greatly affected by air， noise and water pollution。 Many people died of diseases。 In order to live a better life， something must be done to stop the pollution。 It’s our duty to protect our environment。 We shouldn’t throw away rubbish everywhere。 Trees are very helpful and important for us。 We should plant more and more trees in order to live better and more healthy in the future。

If everyone makes contribution to protecting the environment， the world will bee much more beautiful。 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。

保护环境的英语作文三：

Our environment is very important for our lives 。 We need the fresh air， the clean water and so on 。 In the past， there were many trees around us ，the air was fresh and the river was clean。But now，people cut down many trees。 Air pollution and water polloution are very serious 。 The environment around us bees very terrible 。 We should protect our environment。 First， we should plant many trees to keep water。 Second ， we can ride a bike or walk to the school and work。。 Third ， we shouldn’t throw the dirty water into the river 。 Fourth， we shouldn’t use the plastic bags。 Finally， we can ask more people to join us。

保护环境的英语作文四：

Good environment can make people feel happy and fit 。 To improve the environment means to improve our life。

We should plant more trees and flowers around us 。 We shouldn’t cut them down 。 We should stop factories from pouring waste water into the river and waste gas into the air。

Whenever we see litter on the ground ， we should pick it up and throw it into dusbins。 Never spit in public。 Don’t draw on public walls。 It’s our duty to protect the environment。

保护环境的英语作文五：

In modern society， we tend to bee more and more aware of our living environment or physical environment， because we are not clean as before。 So many people now choose their house as to its environment but not its location and expenses to afford it。 As we all know， the environment pollution is more and more serious during these years， what we could do is to make great efforts in protecting environment gradually。 As to government pollution， as to mon people。 We also try to protect it and make it remain clean。 Although we have managed to protect the environment to a certain extent。 It is still a very long way to go。

Better City ，Better life

优质的城市，优质的生活

Environmental problem has become an important and crucial issue. The abysmal lack of fresh water, the desertification, the green house effect and the extinction of creatures are the main issues in environment.

环境问题已成为一个重要和关键的问题。恶化的淡水缺乏，沙漠化，温室效应和生物灭绝是环境的主要问题。

With each second that passes, a water crisis takes another step closer to reality. Consumption of fresh water has tripled since 1950; and fresh water is becoming a very scarce resource. Agricultural practices, mainly irrigation, account for 67% of world water consumption. Over one billion people worldwide dont have access to clean drinking water. So it is incumbent upon all to respect every drop of water and avoid the generation of waste.

随着每一秒的过去，水危机用其他的方法去接近现实。新鲜水用量自1950年以来已经翻了两番;和淡水已成为一个非常稀缺的资源。农业实践，主要是灌溉，为世界用水量67％以上。全世界十几亿人无法获得干净的饮用水。因此，呼吁所有有责任尊重每一滴水，避免废物的产生。

The soil under our feet is also getting away from us. Removal of the natural vegetation leaves extensive tracts of land devoid of a plant cover and susceptible to wind and water erosion. Finally, desertification is accomplished. Four specific activities have been identified as major contributors to the desertification processes: over-cultivation, overgrazing, firewood gathering, and over-irrigation. The extreme seriousness of desertification results from the great difficulty in reversing or even slowing the process. Once the soil has been removed by erosion, only the passage of centuries or millennia will enable new soil to form. The tree planting is a dominant contributor to the development of the disaster. Another effective measure is to restrain the utilization of the land and to exploit the new technology to improve the productiveness of the arable land.

在我们脚下的土地也越来越远离我们。自然植被因为缺乏土地植被和易受风蚀和水蚀而死亡。最后，荒漠化完成。四项具体活动已被确定为对荒漠化的主要导致的过程：过度农垦，过度放牧，薪柴采集和过度灌溉。荒漠化的极端严重性，导致减缓甚至逆转这一过程非常困难。一旦土壤被侵蚀，只有几百年或几千年的才能抵御，使新的土壤形成。主要控制灾情发展都归功于植树。另一个是抑制土地利用率和利用新科技来提高耕地生产率的有效措施。

Our globe is warming up. GHG gases are the main contributor. Carbon dioxide emissions to air are almost exclusively associated with the conversion of energy carriers like natural gas, crude oil, and so forth. Optimization of energy efficiency and, thus, reduction of CO2-emissions and reduction of other GHG emissions contributed from production processes may be the first to be

discussed. And the mitigation of carbon emissions through the development of alternative projects such as solar or wind energy or reforestation, represents one way of managing a carbon footprint.

我们的地球正在变暖了。温室气体是主要的来源。二氧化碳排放到空气中几乎都是在像天然气，原油等能源载体的转换有关。能源效率，因此优化，二氧化碳的排放和其他温室气体减排贡献减少，生产工艺，第一次将要被讨论。发展减缓碳排放量，如通过太阳能或风能或重新造林的替代项目，代表一个管理方式的碳足迹。

The greed of human beings is using up the plants and animals. Tigers once roamed over most of Asia and we can only see them in the zoo. Whales are once the dominant species in the ocean and now they have got out of our sight because of over-harvesting. We must stop harvesting natural resources to excess and bring them back from the brink of extinction. If we take from the wild we must do it in ways that allow natural populations to recover and last long into the future.

人类的贪婪是使用了植物和动物。猛虎组织一度横跨了亚洲大部分地区，我们只能在动物园里看到它们。鲸是海洋中的一次优势种，现在他们现在已经离开了我们的视线，因为过度捕捞。我们必须停止过度采伐天然资源，从他们来的地方，带来了灭绝的边缘。如果我们在野外，我们必须采取的这样的方式使自然种群的恢复和持续，一直持续到未来很长的时间里。

The earth is not the human’s planet, it is our planet. It’s time to take measures to improve the environment for both humans and other creatures. A safe, clean and sustainable environment depends on more than lip service. Both the government and individuals have the responsibility to minimize direct impacts against the environment. All of us can start planting plants in our home, limiting the use of private cars and using public transportations. And the government should impose necessary standards upon the whole society. The beautiful and vigorous earth will come back soon.

地球不是人类的星球，它是我们的星球。现在是时候应该采取措施改善人类和其他生物的环境了。一个安全，清洁和可持续的环境不是取决于纸上谈兵。无论是政府和个人都有责任，尽量减少对环境的直接影响。我们都可以在我们的家开始种植植物，限制私家车的使用和使用公共交通。政府应强加给整个社会所必需的标准。美丽和活力地球将会很快回来。

在生活中，随着科技越来越发达，工业污染的产生逐年增多，而我们，应该做什么呢？

工业污染是指工业生产过程中所形成的废气、废水和固体排放物对环境的污染。污染主要是由生产中的“三废”（废水、废气、废渣）及各种噪音造成的，可分为废水污染、废气污染、废渣污染、噪音污染。

这些污染带给我们的危害数不胜数。如：工业生产中排放大量未经处理的水、气、渣等有害废物，会严重地破坏农业的生态平衡和自然资源，对农业生产的发展造成极大的危害；工业“三废”对工业生产本身的危害也很严重，有毒的污染物质会腐蚀管道，损坏设备，影响厂房等的使用寿命；环境污染，公害泛滥，直接危害着广大人民群众的健康；有些污染不容易发现，发现以后造成的危害已经很严重……

比利时的马斯河谷位于狭窄的盆地中，气温发生逆转，致使工厂中排放的有害气体和煤烟粉尘在近地大气层中集聚不散，3天后开始有人发病。其症状表现为：胸痛、咳嗽、呼吸困难等，一星期内有60多人死亡，其中心脏病、肺病患者死亡率最高。同时，还有许多家畜致死。事件发生期间，SO2浓度很高，并可能含有氟化物。事后分析认为，此次污染事件，是几种有害气体同煤烟粉尘对人体综合作用所致。

但并不是说我们没有办法阻止这种事情的发生。我们也有相应的防御措施。如：淘汰和关闭一批技术落后、污染严重、浪费资源的企业；开展循环经济实践；积极防范突发环境事件；对工业危险废物实行全过程管理制度；实行严格的核与辐射环境安全管理……

如今，我们的思想都不封闭，应该努力了解环保知识，保护好我们的生存环境——地球。为子孙后代留住一个美丽、环保的家园。也为全世界所有人出一份力，让世界更美好。

白色污染White Pollution

With the remarkable improvement of people’s 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。

早上，我和妈妈决定去打扫家门口的街道环境污染作文100字环境污染作文100字。

首先，来到了家附近的一个垃圾箱旁，我发现邻居们都把垃圾扔到了垃圾箱外面，堆起了一座“小山”，垃圾正慢慢的腐烂发臭，引来了许多苍蝇。实在太臭了，所以，我带上口罩去清理。清理好垃圾箱，我又来到路边上，清理行人乱扔的垃圾，到处都是纸屑，我扫了半天才扫好。

今天，我打扫了家附近的路。才觉得，打扫卫生的叔叔阿姨真伟大，天天都把我们的地球妈妈打扫的干干净净。

一：环境污染的根源

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。

二：环境污染

就最近这几年来看，随着各地区的经济迅猛发展，环境污染问题也越来越严重，保护环境，维持生态平衡也成为了我们每个公民应尽的责任和义务，也是为了社会更好发展的一项重要举措!

何为环境?从哲学的角度来看，所谓环境，主要指我们所研究的主体周围的一切情况和条件。对于人来说，环境是指人生活于其中，并能影响人的一切外部条件的综合。人的生活离不开好的环境，在人类几百万年的历史进程中，环境对开创人类文明和进步发挥着巨大作用。

大气资源、水资源、土地资源等等，都是让人类得以生存的物质基础;而森林资源、矿藏资源等资源又为人类的不断发展提供物质，创造出地球上高度的人类文明。但是，人类在开发利用环境资源的同时，也对自己的生存环境产生了一系列环境问题。

在我们身边就有很多污染环境的污染物，例如说：大量的生活废弃品，塑料袋(也称白色垃圾)，一次性木筷，一次性饭盒，果皮纸屑。污染物对环境来说，毫无疑问，肯定有很大的危害，例如动物的腐烂的尸体会影响环境卫生，而且还会滋生细菌。饭店、餐馆认为很卫生的一次性木筷，使用后随便一扔，影响了市容，破坏了环境。。

现在像我们柳疃镇、青乡乡，最近电网部门纷纷撤除喷水机器的使用。喷水机的使用对环境的污染更加恶化、污染了水资源对人们的身体健康危害甚大。人类的活动会使大量的工业、农业和生活废弃物排入水中，使水受到污染。又例如说，我们北部渤海湾受到工业、印染厂的废弃物排放大量鱼虾死亡，地区农民上海捕鱼，鱼的体内含有大量化学物质对人们的身体健康造成了危害。据资料统计，目前，全世界每年约有4200多亿立方米的污水排入江河湖海，污染了5.5万亿立方米的淡水，这相当于全球径流总量的14%以上。1984年颁布的中华人民共和国水污染防治法中为“水污染”下了明确的定义，即水体因某种物质的介入，而导致其化学、物理、生物或者放射性等方面特征的改变，从而影响水的有效利用，危害人体健康或者破坏生态环境，造成水质恶化的现象称为水污染。水的污染有两类：一类是自然污染;另一类是人为污染。当前对水体危害较大的是人为污染。水污染可根据污染杂质的不同而主要分为化学性污染、物理性污染和生物性污染三大类。

最近，我发现政府部门、昌邑环卫局开始大力整治环境，沿街排查污染源，青乡街也定点安置了便民垃圾桶，替代了原来垃圾围绕街道，臭气熏天的状况。各个村庄开始整治村内环境的污染源，使街道、村庄焕然一新!而这不是主要的，更重要的是我们每个人自觉保护环境，保护我们赖以生存的家园，为了我们更为了我们的后代，树立好榜样，奠基好基础，让我们的家园更加美丽、更加丰富多彩!

所以呢!环境与我们的生活密切相关，保护环境卫生从我做起，从现在做起：不随地吐痰;不乱扔垃圾;废弃电池和塑料袋要处理好;多植树造林，不践踏草坪;不污染水源。保护环境，我们有责!看你的行动喽!

小建议：家庭生活中的塑料瓶可以做成装饰品，可回收物品可以卖出，换来金钱买实用的东西岂不很好?一次性木筷消毒清洗一下可以做成装饰品，你也能开小店赚大钱了!化废物为贵宝，让自己的心情更舒畅，让自己的心灵更纯洁，让自己的家庭更温馨!

三：环境污染

在二十一世纪的今天，人类赖以生存的地球环境越来越恶劣，灾难频发，旱灾、洪涝灾害、土地沙漠化、地震、全球气温上升、海啸等等过去，以我所受到的信息宣传，简单以为环境污染只是浓烟滚滚，或者水面上漂浮着垃圾、发出恶臭，蚊虫成堆、尘土飞扬等等。但是，今年从网络、报纸、广播、电视、人们的关注里，我似乎明白；现实的情况要糟得多。西南五省大旱，就是我们自己想都没有想到的原因，专家分析：因为在过去10几年中，西南从新西兰大量引进桉树速生林，为了求短期的经济利益，毫无限制的大面积种植，以用来工业造纸，从而导致物种生态环境失衡，形成地下水严重缺失。俗话说，十年树木，百年树人，可这种桉树两三年就成材，是一种巨大的抽水机和抽肥机，不断侵蚀着其他植物物种的生存空间，而当地人却沉浸在多种树就可以保护环境的僵化错误的指导思想中，不断的在往恶性循环上发展，正是这个想到想不到的原因最终导致西南几百年的大旱灾。在报纸上，我看到温总理在一片干涸开裂的耕地上，捧着一颗枯死的禾苗，只说了一句话：“痛定思痛！”云南拥有大片的原始森林，风景名胜众多，地理环境独特，自古以来就是一个山清水秀，气候宜人的好地方，可是为了种植这种桉树，大量砍伐原始森林，想象这些经过几十年甚至数百年才形成的树木，仅仅是为了去满足最快速度的造纸而被破坏，真是让人可惜，并且痛心。据说旱灾的另一个原因，就是所有的大江小河都修起了水电站。对这一点我有自己的感受，早两年湘江的水面多么宽广，可是上游修了一个水电站后，下游的水明显减少，甚至连河床都经常露出来，同时影响到了城市自来水的引水工程，我都有这些感受，那些江河里小鱼虾们感受就应该更深了。前些天报纸上又爆出地沟油事件，报纸上说地沟油是别人吃完的饭菜倒进垃圾桶后，一些黑心商人把这些进行简单的提炼加工后，不但闻不出异味，加入香精后吃起来还挺香，但是对人体危害很大，我现在都不敢随便在外面吃东西了。环境污染的问题日益严重，影响到了我们生活的方方面面，对此我感到非常的忧虑。

四：河道为什么会污染

在我们学校旁边，有一条小河，听长辈们说，原来这里的河水清澈见底，河里鱼虾成群，夏天人们喜欢在水里游泳，还直接取水饮用呢！可如今，河水不但变得混浊，有时还有臭味呢！

为什么河水会发生翻天覆地的变化呢？经过我们全班同学的观察分析，河水污染有许多原因 。首先，人们不重视环保，乱倒垃圾。如有一次，我去张微家去玩，吃了一根香蕉，问她的妈妈：“阿姨，香蕉皮扔哪里？”只见她从我手中拿过香蕉皮，又随手用力一扔，扔进了小河，说：“这就是我们家的垃圾桶。”甚至有人把死猫死狗也扔进去了，这时，如果你从旁边经过，一阵阵臭味就会扑鼻而来。我真是不明白，人们为什么不多走几步把垃圾扔到垃圾箱里让垃圾车运走呢？。其次，人们家里的化粪池的排污口就直接通向小河。特别是我们学校，大小便没有经过处理就流进了小河，让人看了真是恶心。河水不变臭才怪呢！还有人们给庄稼喷了农药后，就在河里洗药筒等等。由于各种原因使河水变得越来越脏，甚至发臭，更不用说饮用，就连小鱼也快要无家可归了。

我想向人们呼吁：“水是生命的源泉，没有水就没有生命，就没有我们这个美丽可爱的家园，所以请你们不要再伤害小河了，难道你们就没有看见小河在哭泣吗？”

随着科技的发展，我们的环境也越来越差了，清新的空气已经不在了，小编收集了关于保护环境的英语句子，欢迎阅读。

1、Its everyones duty to love and protect the environment.

爱护和保护环境是每个人的责任和义务。

2、But some people dont care about it.

但是有些人却不关心或不在意。

3、The most important question in the world today is pollution.

当今世界最重要的话题就是污染问题。

4、The amount of water which is suitable to drink is less and less.

适合人类喝的水是越来越少了。

5、Even worse, they pour dirty water in to rivers.

更糟糕的是他们排放污水到河流里。

6、They waste a lot of water in their daily life.

日常生活中他们浪费很多水。

7、Something must be done to stop the pollution.

人类必须采取一些措施来制止污染。

8、They throw rubbish into rivers , too.

他们还乱扔垃圾到河流理去。

9、Do not throw rubbish onto the ground. Do not waste water. Use both sides of paper when you write. Stop using plastic bags for shopping. Make classrooms less noisy.

不要在地上扔垃圾。不要浪费水。当你写字时要在纸的两面都要写。停止使用塑料袋去购物。减少教室里德吵闹声。

10、Planting trees Trees are very helpful and important for us.

树对我们人类是多么的重要和有用。

11、No one can live without water or air.

没有人能离开水和空气生存。

12、we cant live without water.

没有水我们就不能生存。

13、We should take many measures to stop pollution.

我们应该采取许多措施去停止污染。

14、Without the shade from trees, Earth would get too hot to live on.

没有了树荫，地球将会变得太热而不能生存。

15、Many rivers and lakes are seriously polluted.

很多河流湖泊已经受到严重污染。

16、As we know , water is very important to man.

我们知道，水对人类来说是非常的重要。

17、We need to protect Earth because it is our home.

我们需要保护地球因为它是我们的家。

18、Its our duty to save water.

节约水是我们每个人的责任。

19、We should plant more and more trees in order to live better and more healthy in the future.

为了将来我们的生活过得更好、更加健康我们应该种更多的树。

20、We dont need to do big things—we can start out small.

我们不需要做大事，我们可以从小事做起。

21、Lets do our best to make it more beautiful.

让我们尽力让它更美丽。

22、We should stop factories from producing harmful gases.

我们应该阻止工厂生产有害气体。

23、If we dont save water, the last drop of water will be a tear-drop of us.

如果我们不节约水，那么最后一滴水也许会是我们人类的眼泪。

24、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.

我们一边耗尽自然资源，一边产生化学污染物。如果继续这样做的话，地球上的生物将难以生存。

25、Protecting the environment is every mans responsibility.

保护地球环境是每一个人的责任。

26、if everyone could make a big contribution to environmental protection, our home will become much more beautiful.

如果每个人为环境保护作出一点贡献，我们的家园会变得更加美丽。

27、Protecting the environment，everyone，s duty.

保护环境，人人有责。

28、The short life of the flowers away, leaving behind the beauty is forever.

带走的花儿生命短暂，留下的美丽才是永远。

29、Governments of many countries have established laws to protect the air, forests and sea resources and to stop environmental pollution.

许多国家制定了法律来保护大气、森林和海洋资源，制止环境污染。

30、The protection of trees, that is, to protect themselves。

保护树木，就是保护自己。

31、In addition to the photos, nothing taken away; In addition to the footprints, nothing left.

除了相片，什么都不要带走;除了脚印，什么都不要留下。

32、Have green trees, have the pulse of the earth.

树木拥有绿色，地球才有脉搏。

33、Earth is our home, you rely on green.

地球是我家，绿化靠大家。

34、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.

我们一边耗尽自然资源，一边产生化学污染物。如果继续这样做的话，地球上的生物将难以生存。

35、Protecting the environment is every mans responsibility.

保护地球环境是每一个人的责任。

36、if everyone could make a big contribution to environmental protection, our home will become much more beautiful.

如果每个人为环境保护作出一点贡献，我们的家园会变得更加美丽。

37、Protecting the environment，everyone，s duty.

保护环境，人人有责。

38、The short life of the flowers away, leaving behind the beauty is forever.

带走的花儿生命短暂，留下的美丽才是永远。

39、Governments of many countries have established laws to protect the air, forests and sea resources and to stop environmental pollution.

许多国家制定了法律来保护大气、森林和海洋资源，制止环境污染。

40、The protection of trees, that is, to protect themselves。

保护树木，就是保护自己。

41、In addition to the photos, nothing taken away; In addition to the footprints, nothing left.

除了相片，什么都不要带走;除了脚印，什么都不要留下。

42、Have green trees, have the pulse of the earth.

树木拥有绿色，地球才有脉搏。

43、Earth is our home, you rely on green.

地球是我家，绿化靠大家。

Global warming in the Antarctic glaciers melt faster, sea level will rise rapidly, life on earth will have ones head above water. I told grandpa, this is too much carbon emissions. When the Spring Festival, we do not have as they often buy a lot of fireworks, fireworks set off once the only in the New Years eve, can rise to exult beaming atmosphere is ok, otherwise the carbon dioxide is really too much, families, cumulative emissions are impressive. I appeal through the Internet, the farmers dont in the wheat straw burning, after the autumn harvest of freshwater and sell special corporations to finish molding fuel, can not only generate economic benefits, can save the environmental protection, protect the earth.

全球气候变暖，南极的冰川消融的速度在加快，海平面将急速抬升，地球上的生物将有灭顶之灾。我告诉爷爷，这都是碳过多排放惹的祸。春节时候，我们没有像往年买上许多烟花燃放，只在除夕燃放过一次鞭炮，能起到欢腾喜气的气氛就可以了，否则产生的二氧化碳实在是太多，家家户户累积起来，排放量实在惊人。我通过互联网发出呼吁，农民秋收后不要在把麦秸集中焚烧了，可以变废为宝，卖给专门公司制作成成型的燃料，既能产生经济效益，有能节约环保，保护地球。

How to protect the environment

Good environment can make people feel happy and fit . To improve the environment means to improve our life.

We should plant more trees and flowers around us . We shouldn’t cut them down . We should stop factories from pouring waste water into the river and waste gas into the air.

Whenever we see litter on the ground , we should pick it up and throw it into dusbins. Never spit in public. Don’t draw on public walls. It’s our duty to protect the environment.

第一，咨询师务必向求助者讲清心理咨询的性质、发生效果的机制，使求助者对心理咨询有正确的认识，对咨询效果有理性的期待。

第二，咨询师对求助者的依赖要及时发现、及时处理，一旦，出现依赖，咨询师应鼓励求助者自己进行探索、自己努力来解决自己的问题。例如面对产生依赖、直接请求咨询师告诉自己该怎么办的求助者，咨询师应该消除依赖

第三，咨询师必须坚持正确的咨询理念，以促进求助者的心理成长为咨询的总目标，以促进求助者心理能力提高，视自己探索、解决问题为己任。

Now, our living conditions more and more high, the environmental protection consciousness is more and more poor.

Everyone in the school pays much attention to health, the ground a piece of paper scraps, a piece of peel, a waste bottles are conveniently pick up, processing and classification, this much good!

But outside, everybody had changed. Lots of things to eat anywhere throw. By bus, eating snacks, threw it into bags. What paper bowl, beverage bottle, and the skin sunflower seeds, want to throw them. The bus drove past, leaving a scenery line of garbage.

Say again lets road along the river park. There was a tree-lined, charactizing a fine spring day. Today, so I can smell a strange smell. Approached a look, floating on the river some trash bags, convenient bowl, not many name of garbage, how the unchanged smelly! More let a person cant imagine that someone broke the river railing chain deliberately, how dangerous! The children walk also shake, more attention point.

Park is also a good place to go for a walk along the river, but Jiang Po edge is often the cattle eat grass there freely, defecate indiscriminately, attracted a lot of flies and bugs, disgusting. You walk tired, want to have a rest, but the road of four legs stone benches into three legs, stagger, garbage better stool, call a person how to sit?

Still another is not beautiful place, some ads posted everywhere, even on the telegraph poles, on the sidewalk with colorful paint brush an advertisers contact phone number, looking at is not pleasing to the eye. These are known as "city psoriasis" phenomenon, who for a treat!

Just turn a turn to the street, cant see too many beautiful place, this is the result of a people unconsciously. The Olympic Games is coming, if you still do not pay attention to the environment, will be foreign friends made fun of.

Protection of the environment depends on everybody, we must start from oneself, all hands to protect our homeland.

现在，我们的生活条件越来越高，可环境保护意识却越来越差了。

大家在学校里十分注意卫生，地面一片纸屑、一块果皮、一个废瓶罐都随手捡起，并分类处理，这多好啊!

可在校外，大家都变了个样。吃不完的东西随地乱扔。乘公交车时，一边吃零食，一边往外扔包装袋。什么纸碗啦、饮料瓶啦，还有果皮瓜子壳啊，想扔就扔。公交车开过，留下一道垃圾风景线。

再说说咱们的沿河路公园吧。那里本来绿树成荫，鸟语花香。如今，老远就闻到一股怪味。走近一看，河面上漂着一些垃圾袋、方便碗，还有许多叫不出名字的垃圾，河水怎么不变臭啊!更让人无法想象的是，有人把河边栏杆上的铁链故意弄断了，那多危险!小孩走路还摇、要多留心点。

沿江公园也是散步的好地方，可是江坡边常有牛儿自由地在那里吃草，随地大小便，引来许多的苍蝇和臭虫，真恶心。大家走累了，想休息一会儿，可路边四条腿的石条凳变成三条腿，东倒西歪的，好点儿的凳上有垃圾，叫人怎么坐啊?

还有个不美的地方，就是一些校广告到处贴，连电线杆上，人行道上都用五颜六色的油漆刷出广告人的联系电话，看着就不顺眼。这些被人们称作“城市牛皮癣”的现象，谁来治一治啊!

到街上随便转一转，就看到太多不美的地方，这都是大家不自觉造成的。奥运会就要来临了，要是大家还不注意环境，就要被外国朋友取笑了。

环境保护靠大家，我们一定要从自己做起，人人动手来保护我们的家园。

Dear John,

Im glad to hear from you. Now let me tell you something about our city. Nantong is trying to set up a national civilized city. We middle school students are also doing some things for it. We are all polite to our teachers. (In class, we listen careful to them./When we meet them, we always say hello to them./…)We also respect the old. For example, we help them cross the streets.

We are always ready to help each other.(When one has difficulty with his studies, others will help him at once./...)We often show our love to those in trouble. Last month, the students of my class donated money to the earthquake-hit areas.

Besides, we plant trees to protect the environment and make our city more beautiful.

Nantong is my hometown. I will do my best to turn Nantong into a civilized city.

Zhang Tong

我国的城市河流和湖泊污染情况是非常严重的,城市河流水有不同程度的富营养化问题。以下是小编给大家整理的形势与政策论文：城市水环境的问题探讨的内容，欢迎大家查看。

摘要: 随着经济快速发展，城市生态形势压力也与日俱增，水环境问题已成为制约社会发展的大问题，环保基础设施建设严重落后，城市生活污染物未得到有效控制，工业污染源未得到严格治理，农业污染日益突出，部分河段水质受污染严重，河水发黑发臭，完全失去水质功能。本文主要对城市水环境治理及污染防治对策进行了分析探讨。

关键词：城市规划;水环境质量;污染防治;对策

城市生态环境是城市宜居水平评价和城市经济发展的重要因素。作为城市生态环境的重要组成部分，城市水环境对生态环境的治理和改善有着重要的影响。受传统经济发展理念的影响，我国城市水环境污染情况不容乐观。而且在城市扩建过程中还造成了大量周边湿地的消失，造成了城市生态环境、水环境的进一步恶化。针对这样的情况，我国近年来加大了城市生态环境治理力度。从城市规划与发展的角度出发，恢复城市周边湿地环境、改善城市水环境与生态环境。

一、城市水环境的基本特点

1、城市用水的特点

生活用水和生产用水是城市用水的主要类型，由于城市人员密集、工业化生产程度高，所以，城市用水需要较高的质量、较大的供水量、稳定的供给，这对城市采水、供水和用水来说有着不同于农村的特点。

2、城市用水的依赖性强

城市由于用水量大、供水要求高，所以，单纯依靠城市区域的供给和开采往往难于满足城市发展的需要，因此，大众城市往往需要从城区周边或外地调水来满足城市的用水需要，“引滦入津”、“南水北调”就是这样的举措。

3、城市水环境脆弱

在我国北方，城市生活和生产用水大都在简单处理或未经处理就直接排放到环境之中，在日积月累的大量污染的影响下，城市水环境受到了严重破坏，并且这一现象有蔓延和恶化的趋势，造成水环境的脆弱和生态的破坏，影响城市深入地发展。

4、城市地下水环境恶化

城市地下水环境恶化来源有两个，一是，城市生产和生活中大量污染源渗入地下，造成对地下水资源和水环境的破坏;二是，城市地表硬化导致城市地面下渗量的减少，在大量开采地下水的同时，没有必要的补充，出现水环境的恶化。

二、城市水环境综合治理方法

1、以人为本，科学发展

把维护广大人民群众的根本利益作为第一点，把群众最关心、最直接和现实的水环境保护问题为重点，转变发展观念，重视生态文明建设，加快建设资源节约和环境友好社会，走科学发展道路。

2、优先保护饮用水源

合格的安全饮用水源是人民生活的必需品，水环境治理应突出重点，优先保护饮用水源，确保群众饮水安全。

3、强化节能减排、效益原则

与区县减排工作挂钩，把COD削减量考核指标纳入到区县水环境治理目标体系中，明确各区县污水处理率、污水处理厂运行负荷率等量化指标。切实保障三个达标，即污水处理率必须达标、污水处理厂的运行负荷率必须达标、COD的减排必须达标。合理安排资金，对节能减排效果明显，有一定经济基础，技术条件成熟，符合国家和行业产业政策的项目优先考虑。

4、治本方针

突出截污治污。河道沿线村镇、企业密集，污染来源复杂。为此，河道治理将坚持“先截污、后清淤、先治理、后换水”的原则，周密排查河道沿线污染来源，大力实施清淤、截污、生态护坡、河岸绿化等措施，加强河道水体自净和生态修复功能;在突出截污治理的同时，各区县还将坚持污水处理厂、配套管网同步建设，大力提升现有污水处理厂运行负荷率，妥善解决污水出路，切实提高河道水环境质量。

5、加强协作，落实责任

市水务局于去年成立了河道水环境考核办公室，将清水工程已治理河道纳入考核范围，各区县按照属地管理原则在本辖区内建立水环境管理机构和相关管理机制，有效巩固水环境治理成果。此外，目前市政府已正式批准本市河道水环境实施“河长制”管理意见，即将公布全市主要河道“河长”名单，构建完善的河道水环境管理长效机制，为今后本市水环境由加强治理向强化管理转变打好基础。

三、城市河流水防治和改善技术的应用

1、底泥疏浚和河床微生态系统修复

在河流洪水、蓄洪功能上,底泥疏浚主要体现在河流利用水面变化增加行洪、蓄洪能力。作为沉积物沉积,有的湖泊水的深度可以被调整,从而减少其调节和存储功能。增加城市河湖疏浚河道水容量后,以确保顺利排出这些河流洪水,保障人民群众的生命和财产安全,也避免了洪涝灾害。底泥疏浚是水环境综合整治的一项重要措施,滇池、巢湖、太湖等水环境综合整治已被广泛使用。可见,合理的疏浚清除污染物,对于生态系统的恢复和重建具有非常重要的作用。

2、人工增氧技术

人工增氧技术是基于城市河流水污染后缺氧的现象,人工的向水体中注入空气或氧气,从而加速水体复氧的进程,提高水体的溶解氧水平,恢复和提高在水中好氧微生物的活力,使河流水的污染物净化,从而改善河流的水质。河流氧气一般使用固定和移动站充氧平台两种形式。河道人工增氧技术的应用,能够使得水质不同时期达到消除黑臭、减少水体污染负荷、促进河流生态系统恢复的目的。

3、调水引流水质改善技术

贯穿城市的内河河网水系,因为控制结构的限制,使得河流水不能够连接到外部的水体,造成水处于静止的状态,当天气炎热的时候,溶解在水中的氧气浓度就会降低,容易导致水质变坏。通过改进水域水动力条件,提高水体污染物的稀释能力,增强局部水体的自净能力,许多城市在水资源利用和部署中,通过跨流域调水工程,解决空间分布不均的问题。

4、植物修复技术

对于河道河流自然恢复应采取生态化措施,主要是通过恢复河岸植被、恢复天然湿地,在河岸种植芦苇、浮萍、睡莲、水生植物和其他湿地植物,以提高水体的净化能力。种植水生植物的城市河流水,一方面能够通过植物的根系的吸收,从而降低和遏制富营养化趋势;另一方面通过种植水生植物,可以也起到美化水体环境,提高城市的景观的效果。

5、生物净化技术

生物净化技术是充分利用天然水体自净的功能,采用人工措施,创造更有利的环境有利于微生物的生长和繁殖,并培养出大量的微生物从而增强水体净化能力,以提高纳污水体氧化降解有机物能力的一种净化方法。目前国内外最常用的生物净化技术是曝气技术、生物膜技术与投菌技术。生物净化技术,其成本低,对环境的影响小,能够有效降解污染物,是水体污染处理的最佳选择之一。生物净化技术及产品的开发,特别是分解菌株的培养也将被筛选到河流水污染控制技术之中,是未来城市水污染防治和治理的发展趋势。将具有特殊分解能力的菌种添加到河边,能够将水体中有毒有害物质分解为无毒无害的物质,从而加速有毒物质的分解、转化,不仅可以提高河流的净化能力,而且也实现了河流的生态修复。生物产品的运用将成为人工增氧、底泥疏浚等现有防治技术的有益补充。

四、结束语

综上所述，我国的城市河流和湖泊污染情况是非常严重的,城市河流水有不同程度的富营养化问题。目前,在城市河流污染环境下,需要完善城市管线网络,并建设污水处理厂,具体的水污染防治技术措施有:底泥疏浚、人工增加氧气、引水排水水质改善、植物修复、湿地水净化技术等河流强化净化技术。能够应对不同的城市的污水状况,使得城市河流水污染的情况得到了有效的控制,促进城市河流的健康发展。

参考文献

[1]曹洲榕，禹华谦.城市水环境问题及对策探讨[J].四川建筑.2011(01)

[2]高婷，于航宇.浅析我国水环境现状及城市污水的处理[J].中国新技术新产品.2011(16)

[3]陈邵鹏，顾海东.立足流域浅谈城市水环境规划建设[J].中国科技信息.2012(03)

Development and the Environment

It is undeniable that the worsening environment has become the biggest concern of the present-day world. Land resources are dwindling because of water loss and soil erosion. Waste gases poison the air we breathe. The rivers and lakes are polluted by waste dumped in them from factories. It is probably no exaggeration to say that deterioration of the quality of the environment threatens the existence of mankind itself.

Some people are of the opinion that the environmental problem is the price we have to pay for economic development. But I do not think that this argument is valid. After all, what is the point of economic growth if people＇s lives are adversely alfected by worsening environmental pollution?

There is plenty of evidence to show that sustainable development can be achieved by balancing economic growth with protection of the environment. The key to achieving this is to make people aware of the seriousness of the problem. Both governments and ordinary citizens should join hands to make this world a better place to live in, not only for ourselves, but also for future generations.

环境与发展

不可否认的是环境恶化已成为当今世界上人们最担心的事了。因为水资源的浪费和土壤被侵蚀，土地资源逐渐缩小。我们呼吸着有毒的空气，河流和湖泊也被附近的工厂里排放出来的废弃物严重污染了。不夸大其词地说，环境质量的恶化很可能威胁人类的生存。

有些人说环境问题是我们为经济发展所付出的代价。对此，我不敢苟同。如果人类的生活被日益恶化的环境污染所影响的话，那么，经济发展的意义何在?

足够的证据表明：经济发展与环境保护的平衡可以实现可持续发展。关键是使人们意识到问题的严重性。政府和普通市民两方都应该携手使地球成为更适合人类居住的地方，这不仅是为我们自己，也是为我们的后代。

[环境与发展英语作文及译文

作文【一】

One day Sun Wukong together with his master and brothers was walking across a river. Suddenly his master fell off the horse by the bad smell of river water. They found the water so dirty that they could hardly breathe.

A lot of factories along the river always poured their waste water and rubbish straight into the river which made the river water polluted. In this way most of the fish in the river were killed. If the river water all over the country is polluted like this, no living things will exist in the water. Now more and more people have come to realize how serious this problem is. Our government is doing her best to take measures to fight against pollution. We expect that the water in every river will be made cleaner and cleaner before long.

作文【二】

There are still many problems of environmental protection in recent years. One of the most serious problems is the serious pollution of air, water and soil. the polluted air does great harm to people’s health. The polluted water causes diseases and death. What is more, vegetation had been greatly reduced with the rapid growth of modern cities.

To protect the environment, governments of many countries have done a lot. Legislative steps have been introduced to control air pollution, to protect the forest and sea resources and to stop any environmental pollution. Therefore, governments are playing the most important role in the environmental protection today.

In my opinion, to protect environment, the government must take even more concrete measures. First, it should let people fully realize the importance of environmental protection through education. Second, much more efforts should be made to put the population planning policy into practice, because more people means more people means more pollution. Finally, those who destroy the environment intentionally should be severely punished. We should let them know that destroying environment means destroying mankind themselves.

作文【三】

Dear editor,

Environmental problems are becoming more and more serious all over the world. _________________________________________________________

Yours truly

Li Hua

Dear editor,

Environmental problems are becoming more and more serious all over the world.

With the development of industry and agriculture, cars make great noises and give off poisonous gas. Because of population expansion and overdevelopment, resources has become less and less. Trees on the hills have been cut down, and waste water is being poured continuously into rivers. The whole ecological balance of the earth is changing. Massive destruction of environment has brought about negative effects and even poses a great threat to man’s existence.

We must face the situation that exists and take actions to solve our environmental problems. We hope that all these measures will be effective and bring back a healthful environment.

Yours truly

Li Hua