pollution

Sherry Sun

Biology

Period G

5/28/2015

The Pollution After 2007

We watch a movie on our biology class and it told us the bad pollution in this world. However the movie stopped in 2007, so I looked some information form the internet and the newspapers about how is the pollution going after 2007.

When we read newspapers, we often come across the word pollution. This word was not familiar to the people some decades ago. But now, it is a serious threat to us because it means the poisoning of the air, seas, rivers and lands, which would do harm to our health.

There are many factories that bring pollution to u s. We can’t have fresh air in the morning. This is mainly because of the poisonous smoke coming from factories, especially chemical ones. In the rivers, seas and oceans, there are industrial wastes. Some factories just throw their wastes into seas or let them flow into rivers. When people drink the water from such rivers, they get poisoned. Besides, there is rubbish from ships and when sometimes an accident occurs in an ocean, oil flows out from tankers.

On the land, the accumulation of rubbish in the streets may dirty the city and ruin our health. This is mainly due to the improper disposal of rubbish by people. 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.

If we do not fight against pollution, surely one day all of us will be killed. Some people like to put the blame on the industrial revolutions. On the contrary, the pollution problem will be solved only with the help of modem science and technology.

pollution作文

pollution作文 Environmental Pollution With the continuous development of world economy and the growing world population, environmental pollution attracts our attentions. Environmental pollution is one of the most serious problems that mankind faces today. Air, water and soil are necessary to the survival of all living things, but they all harmed by pollution. Polluted air can cause illness, and even death. Polluted water kills fish and other marine life. Pollution of soil reduces the amount of land on which we can grow food. Environmental pollution also brings ugliness to man’s naturally beautiful world. There are a lot of reasons causing the problem. For example, exhaust from automobiles causes air pollution. Factories discharge much of the material that pollutes air and water. Too much fertilizer or pesticide can ruin soil. So we should be responsible for the environment around us. We can take effective measures to protect our environment. Firstly, it’s best for us to ride a bike to school, don’t take a bus or a taxi. Secondly, scientists and engineers should work to find ways to lessen the amount of pollution that such things as automobiles and factories cause. Thirdly, government should pass and enforce laws that require businesses

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关于环保的英语好句子 没有地球的健康就没有人类的健康与自然重建和谐，与地球重修旧好垃圾混置是垃圾，垃圾分类是资源。 关于环保的英语好句子（一） 1、But save square inch ground, stay with descendant Geng. 但存方寸地，留与子孙耕。 2、Protection of the environment is everyones responsibility. 保护环境，人人有责。 3、Rescue the Earth is to rescue future. 拯救地球就是拯救未来。 4、The amount of water which is suitable to drink is less and less. 水的量是适宜的饮料是越来越少了。 5、But some people dont care about it. 但有些人不关心它。 6、It is very important to take care of our environment. 这是非常重要，我们要保护我们的环境。 7、Now p eople pay more attention to how to pretend our environment .With the development of science and technology,it

becomes more important to pretend our environment.In china,prentending environment is very nomal in our life for the Olympics coming or the peoples sense of environmental pretection. 环境保护是当今社会的一大热点问题。随着科技的发展，环保显得越来越重要。在中国，也许是奥运会的临近，也许是人们意识 的崛起，环保已经成为我们身边一个普遍的存在了。 8、It“s our duty to protect our environment. 它”是我们的责任来保护我们的环境。 9、Many rivers and lakes are seriously polluted. 许多河流和湖泊受到严重污染。 10、The rubbish will pullute the enviroment .It is bed for our health.So please dont throw about the rubbish. 垃圾污染环境，损害健康，不要到处扔垃圾 11、Its our duty to protect our environment。 保护我们生存的环境是我们的责任和义务。 12、The waste water will pour into rivers,lakes and fields.It will harm the crops ,kill a large number of fish. 废水流到河里，湖里和田野里，污染农作物，杀死大量的鱼。 13、Its everyones duty to love and protect the environment. 这是每个人的责任，爱护和保护环境。

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了垃圾，甚至在河中也漂着一些白色垃圾。河水又黑又浊，哪里还有个小鱼的影子呢并且河中还发出臭味。这哪里还是清澈见底的小河，简直是个“臭水沟”。 三、噪音污染。 家乡的噪音污染也十分的严重。噪音能影响人们的生活和工作，对听觉和身心健康都有损害，还会影响少年儿童智力发展，影响我们的思考和学习。噪音的主要来源是工厂、街道、建筑工地、公共场所等。在大街上，汽车、摩托车喇叭的声音， 以上的三种污染，对我们的正常生活会有很大的影响，如果继续这样下去，还会威胁着我们的身体健康，以及造成其它方面的损失。---王圣镈 环境污染作文第2篇 大家应当明白吧，此刻地球上有许多的垃圾正在危害我们的地球。 保护地球，人人有责。 如果人们一个人把垃圾扔进垃圾桶地球就不会有危害，并且我们的地球妈妈也在慢慢的生病我们应当做出所应当做得来，不应当坐视不管大家应当明白吧，此刻地球上有许多的垃圾正在危害我们的地球。劝告大家应当明白吧，此刻地球

pollution话题

noise pollution 噪音污染 何为噪声污染 声音由物体振动引起，以波的形式在一定的介质（如固体、液体、气体）中进行传播。我们通常听到的声音为空气声。一般情况下，人耳可听到的声波频率为20～20，000Hz，称为可听声；低于20Hz，称为次声波；高于20，000Hz，称为超声波。从物理学的观点来看，噪声是由各种不同频率、不同强度的声音杂乱、无规律的组合而成；乐音则是和谐的声音。噪声的分类 噪声污染按声源的机械特点可分为：气体扰动产生的噪声、固体振动产生的噪声、液体撞击产生的噪声以及电磁作用产生的电磁噪声。 噪声按频率：<400Hz的低频噪声、400～1000Hz的中频噪声及>1000Hz的高频噪声。 噪声按时间变化的属性：稳态噪声、非稳态噪声、起伏噪声、间歇噪声以及脉冲噪声等。 噪声有自然现象引起的（自然界噪声），有人为造成的。故也分为自然噪声和人造噪声。噪声的来源 ⑴交通噪声: 包括机动车辆、船舶、地铁、火车、飞机等发出的噪声。由于机动车辆数目的迅速增加，使得交通噪声成为城市的主要噪声来源。 ⑵工业噪声: 工厂的各种设备产生的噪声。工业噪声的声级一般较高，对工人及周围居民带来较大的影响。 ⑶建筑噪声: 主要来源于建筑机械发出的噪声。建筑噪声的特点是强度较大，且多发生在人口密集地区，因此严重影响居民的休息与生活。 ⑷社会噪声包括人们的社会活动和家用电器、音响设备发出的噪声。这些设备的噪声级虽然不高，但由于和人们的日常生活联系密切，使人们在休息时得不到安静，尤为让人烦恼，极易引起邻里纠纷。 （5）家庭生活噪声污染等 危害 噪声污染对人、动物、仪器仪表以及建筑物均构成危害，其危害程度主要取决于噪声的频率、强度及暴露时间。噪声危害主要包括： 噪声对听力的损伤 噪声对人体最直接的危害是听力损伤。有研究表明，噪声污染是引起老年性耳聋的一个重要原因。此外，听力的损伤也与生活的环境及从事的职业有关，如农村老年性耳聋发病率较城市为低，纺织厂工人、锻工及铁匠与同龄人相比听力损伤更多。 噪声能诱发多种疾病 由于噪声的作用，会产生头痛、脑胀、耳鸣、失眠、全身疲乏无力以及记忆力减退等神经衰弱症状。高血压、动脉硬化和冠心病的发病率要高2～3倍。此外，噪声对视觉器官、内分泌机能及胎儿的正常发育等方面也会产生一定影响。 噪声对正常生活和工作的干扰 噪声会分散人的注意力，导致反应迟钝，容易疲劳，工作效率下降，差错率上升。噪声还会掩蔽安全信号，如报警信号和车辆行驶信号等，以致造成事故。 噪声对动物的影响 噪声能对动物的听觉器官、视觉器官、内脏器官及中枢神经系统造成病理性变化。出现烦躁不安、失去常态等现象，强噪声会引起动物死亡。鸟类在噪声中会出现羽毛脱落，影响产卵率等。 噪声对动物行为的影响和声致痉挛实验证明，动物在噪声场中会失去行为控制能力，不但烦躁不安而且失却常态。噪声对动物听觉和视觉的影响动物暴露在150分贝以上的低

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英语写作 Air Pollution

Air Pollution As we all know, air pollution, which affects human health seriously, has been a pressing issue that we everyone should pay more attention to. How to solve this problem is relate to all of us. So we must do something to prevent air pollution. The reasons for air pollution are various .The most important reason is that many factories discharge lots of toxic gas and dust particles into the atmosphere, which make the air become so dirty. Besides, the automobile exhaust is another significant reason that it makes air quality worse. Last but not least, the burning of fossil fuel and garbage is also a cause of air pollution. All this unreasonable activities of human being have destroyed the automatic purifying capacity of the atmosphere. Therefore, some effective measures should be taken to prevent environmental pollution. For instance, the government must close some illegal factories and only allow legal factories to discharge the clean gas into the atmosphere. In addition, we should go to work by bus instead of using private cars. Finally, we should use clean energy replace of fossil fuel and reduce the burning of garbage. In short, only keep the air more clear can we live in a healthy environment.

环境污染的英语作文

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关于环境污染演讲稿 近年来,随着地区经济的迅猛发展,环境污染问题也越来越严重,防止环境污染,保护环境,维持生态平衡,已成为社会发展的一项重要举措,为大家整理了关于环境污染演讲稿3篇，欢迎大家阅读。 关于环境污染演讲稿篇1 许多人认为，地球上海，陆，空的资源是取之不尽的。他们毫无顾忌地把千万吨的废气排放到空中，把数亿吨的垃圾，污水排放到大海…… 我看到成群的鸟儿在森林上空盘旋，但是，今天那一棵棵高耸入云的大树——鸟儿的乐园，只剩下一排排低矮的树墩。我仿佛听到小溪里的鱼儿在哭泣，人们把污水排放到小溪，鱼儿纷纷死去。仰望天空，一根根高大的烟筒冒出滚滚浓烟。 俯视大地，小草已经枯黄，地上到处是垃圾。 天空不再蔚蓝，草儿不再嫩绿，花儿不再娇艳，溪水不再清澈见底。 我们要保护地球，保护地球上的生态环境，相信不久的将来，地球会恢复往日的神采! 关于环境污染演讲稿篇2 在这喧嚣的城市当中，霓虹灯取代了参天大树。记忆中的绿地现在已盖满了高楼大厦，我再也不能亲眼目睹往日清新的惬意，身边只有那污浊的空气。 我是地球上唯一一只幸存的伞鸟，原本生活在茂密的林中。我记

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Air pollution 空气污染四级英语作文

Air pollution 空气污染四级英语作文 Air pollution 空气污染四级英语作文 The picture reflects the air pollution is threats our healthy day by day,everybody has to wear masks to protect themselves from the fog and haze. Therefore,we can not neglect the seriousness of air pollution. As a matter of fact,we have many methods to avoid or reduce the harm of air pollution.On the one hand,the major and largest sources of air pollution come from industrial pollution and automobile exhaust.Therefore,we should try to develop new energy to replace the tradition ones;in addition,public transportation vehicles is our top choice when we go out to doing something.On the other hand,we should plant more trees to absorb more carbon dioxide in the air and let trees release more oxygen through the process of photosynthesis. In brief,the air belongs to us all and everybody on the planet ,to should take the responsibility for protecting the environment,to be specific,the air.

pollution作文10篇

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开心、幸福甜蜜。 8、世界环境日，给空气穿上清新的外衣，舒爽呼吸;给大地点缀漂亮的青绿，环境一片生机;给溪水融入清亮的粉底，沁人心脾;给天空披上瓦蓝的披肩，飘逸美丽;现在呼吁：珍爱生命，保护环境是第一。 9、整个市上空都被层层的烟雾笼罩着，人不仅能感受到天气的闷热，而且熏得人眼都睁不开。 10、寒风在哭泣，大地在迷离，环境要保护，地球需要你，创建美家园，行动在今天，多植树造林，少排放尾气，要爱护淡水，不乱扔垃圾，让蓝天更蓝，使清水更清，世界环境日，祝你好心情。 11、6月5日世界环境日，送一棵发财树，风儿一吹树儿摇，摇来金银和珠宝，送你一喜鹊，鸟儿枝头叫一叫，叫走烦事喜事到。祝你开心无烦恼。 23、穿衣要环保，舒服;吃饭要环保，卫生;住房要环保，幽雅;出行要环保，省电，世界环保日，人人都是“环保形像大使”! 24、环境是大自然赐给我们的宝贵财富，植物是大自然的天然屏障，淡水是我们的生命之泉，世界环境日，保护植物，节约每一滴水，倡导环保，以身作则，愿我们的家园更美丽。 25、世界环境日到了，让我们行动起来，守住绿水青山，杜绝乱砍污染;守住我们身边，杜绝垃圾乱飞烟囱冒黑烟。世界环保日愿大家保护环境、呵护家园、从身边做起。 26、清风拂面，舒适你身;雨露降临，滋润你心;莺声燕语，优雅

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关于环境污染的英语演讲稿-英语演讲稿 we are a normal member of the big family of nature good afternoon everybody. honorable judges, ladies and gentlemen. today，we are gathering here to discuss a very hot issue. how to find harmony in a new age between man and nature? where modern science and technology are concerned i am only a layman i have to say. however, living in this new age , seeing my dear ones suffering from respiratory diseases from time to time, finding the beautiful colors of green and blue are being replaced by that of gray and pale, and realizing that our mother planet is getting more and more unhealthy; i cant help trying to offer my idea and my trivial efforts to look for the answer of the question. as the ancient greek oracle goes: know thyself. i think in answering this above-mentioned question, this precondition is also very important. who are we? this is a question, which should be answered not only by those specialists, but also by every one of human beings. some people may proudly say: we are the masters of nature.

英语写作_Air pollution

Air pollution Air pollution is the human introduction into the atmosphere of chemicals, particulate matter, or biological materials that cause harm or discomfort to humans or other living organisms, or damages the natural environment. Air pollution causes deaths and respiratory disease. Air pollution is often identified with major stationary sources, but the greatest source of emissions is mobile sources, mainly automobiles. Gases such as carbon dioxide, which contribute to global warming, have recently gained recognition as pollutants by climate scientists, while they also recognize that carbon dioxide is essential for plant life through photosynthesis. The atmosphere is a complex, dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the Earth's ecosystems. Pollutants An air pollutant is known as a substance in the air that can cause harm to humans and the environment. Pollutants can be in the form of solid particles, liquid droplets, or gases. In addition, they may be natural or man-made. Pollutants can be classified as either primary or secondary. Usually, primary pollutants are substances directly emitted from a process, such as ash from a volcanic eruption, the carbon monoxide gas from a motor vehicle exhaust or sulfur dioxide released from factories. Secondary pollutants are not emitted directly. Rather, they form in the air when primary pollutants react or interact. An important example of a secondary pollutant is ground level ozone - one of the many secondary pollutants that make up photochemical smog. Note that some pollutants may be both primary and secondary: that is, they are both emitted directly and formed from other primary pollutants. Major primary pollutants produced by human activity include: ?Sulfur oxides (SO x) especially sulfur dioxide a chemical compound with the formula SO2. SO2is produced by volcanoes and in various industrial processes. Since coal and petroleum often contain sulfur compounds, their combustion generates sulfur dioxide. Further oxidation of SO2, usually in the presence of a catalyst such as NO2, forms H2SO4, and thus acid rain.[2] This is one of the causes for concern over the environmental impact of the use of these fuels as power sources. ?Nitrogen oxides (NO x) especially nitrogen dioxide are emitted from high temperature combustion. Can be seen as the brown haze dome above or plume downwind of cities.Nitrogen dioxide is the chemical compound with the formula NO2. It is one of the several nitrogen oxides. This reddish-brown toxic gas has a characteristic sharp, biting odor. NO2 is one of the most prominent air pollutants.