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关于化工环保的论文题目大全初中英语

发布时间:2024-07-06 16:15:23

关于化工环保的论文题目大全初中英语

It was thought that the water on the earth, the air is endless, so don't worry about the gas to the sky, and ten hundreds of millions of tons and the rubbish into lakes and Everybody believes that the world is so big, it wastes? We were wrong, actually earth though large (radius 6300 much kilometers), but only 8 km creatures in elevation to the bottom of the 11 km within the scope of the life, and occupied 95% of the creature can only live in the middle about three kilometres, within the scope of the people unexpectedly wantonly from three aspects to make unclean this limited living Land pollution, waste cleanup become the important problem of cities every million tons of garbage, many are not incineration or corrupted, such as plastic, rubber, glass, Human is the first Marine pollution: mainly from oil and oil leak of crude, farmland use of pesticides and fertilizers, factories, mines of sewage discharge flow of acidic solution, They make most of the Marine lakes are contaminated, results not only Marine creatures suffer, birds and humans may also is due to eat these biological Air pollution: this is the most direct and serious, mainly from factories, automobile, power stations and so on the recombination of carbon monoxide and hydrogen sulphide, every day there are from exposure to these dirty air by respiratory organs or visual organs If we still ignore experts warned, will have a fall without half inches pureland can live Water pollution refers to water bodies of any substance, which leads to the chemical, physical, biological or radioactive pollution and so on aspect characteristic changes, thus affecting the effective use of water, endangering human health or destruction of ecological environment, causing water quality deterioration Atmospheric pollution means air pollutant concentration reach or exceed the degree of harmful, causing damage the ecological system and the normal human survival and development to human and biological Noise pollution means generated by the environmental noise emitted exceeds the state on emission of environmental noise, and disturb others normal work, study and life Radioactive pollution means caused by human activities material, human body, site and environment medium surface or internal appear more than national standards of radioactive substances or For example, more than state and local government rules and standards of the discharge of pollutants, super species, excess, super concentration the discharge of pollutants, Do not take measures to prevent the overflow and leakage and load transport oil or toxic goods cause goods falling water pollution; Illegal released into the atmosphere with toxic or harmful substances, causing the atmospheric pollution accident,

The earth scale change of climate has brought a new kind of natural disaster and the developed and complicated city system is holding a latent risk of expanding the damage Also people has been spoiling the health since the immense quantity of chemicals have been produced and already used in pursuit of convenience and various toxic substances have been produced unintentionally and accumulated in Therefore, We need some countermeasures from the viewpoint to prevent the city environment form disaster and to manage environmental So we will develop and improve a new risk management system and a disaster prevention system to preserve and create the city environment where people feel easy and sound in their 英语作文常见话题-环境保护 Protect EnvironmentMany people are active in fighting against unfair treatment to colored people, women , animals and so Right now I am talking about fighting for respect to our Though the environment doesn’t have a mouth to deprecate what humans have done to her, she retaliates through In the early years the Chinese cut down large quantities of trees, at the source of the yellow river, which led to the disappearance of big forests and terrible As a result,the Huangtu plateau which was once covered with grass and forests was turned into barrens that supported fewer Another example was in several developed Because many chemical factories discharged poisonous gas without filtering it, cities were covered with so much poisonous gas that people were killed by the air they breathed What horrible scene!What we are suffering is only a small part of what the nature once If we don’t take action to show respect to the environment, we will have to face an increasingly awful Measures should be taken to protect the environment on which we are First governments should forbid destroying vegetation, rivers and lakes, oceans, as and the atmosphere as Second voices should be made to announce the public of the importance of protecting the Third enterprises should pay special attention to the effect they have on the environment and work out solutions for the Only by changing the way we treat the environment can we get along well with Only by saving the environment can we save

100%正确非机器翻译铅的含量测定(II)用ICP(虹膜IntrepidαXSP热电公司、美国)。测量的pH值在pH计(MP220,Meterlo)。无机阶段的吸附剂确定用x射线衍射(Rigaku D / MAX2βA)。具体的面积是用氮气吸附法下的赌注,用硅Quantachrome QUADRASORB)。 来确定最佳初步汇总内容的碳量,初步汇总(05克)的初步汇总/碳纳米管与不同数量的初步汇总被引入,圆锥瓶100毫升的铅(II)溶液浓度变化(含)10-60毫克/升)pH值约0是补充。解决了2小时在一个固定的温度(25◦C)。这两个阶段分离过滤通过45μm微孔膜过滤。最后的铅浓度(II)中进行回顾性分析。解决剩余 这个平衡吸附capacitywas计算每个金属样品的铅(2)采用下列表达:质量是初步汇总/碳纳米管吸附能力(毫克/ g)、五样卷(l),(二)的铅浓度(毫克/升)、Ce均衡的铅(II)浓度(毫克/升),和m的重量,初步汇总/碳纳米管(g)。 初步汇总的数量和最大吸附容量大的初步汇总/碳纳米管发生被选为最优装载水平和保持不变。在接下来的adsorptions溶液的pH值在0,0和0被选出来学习的pH值影响铅(2)清除。 对于一个已知的均衡的研究,初步汇总/碳纳米管(05g)加到一个固定的样品溶液浓度变化(含10-60毫克/升),10毫克/升100毫升、pH值区间,0)。 样品制备了吸附动力学过程中加入1号到2000毫升初步汇总/碳(pH0),和铅(2)concentrationwas 30毫克/升,在预定的时间间隔298 样本,利用45μm滤膜,然后分析。 评估的热力学性质,首先,我们准备各种解决方案与最初的铅浓度(II)从10至60毫克/升,然后添加碳05g初步汇总每个方案。这些样本,然后摇动,在桃园连续2h 303、K 323。那些使用45μm过滤膜、filtrates用ICP测定。 1%。用x射线衍射分析和性能的影响,并初步汇总加载的水平 碳纳米管的表面积和初步汇总/碳纳米管都列在表1。装运后,小的孔宽度(初步汇总6nm)和更大的表面积(275m2 / g)进行了观察。这意味着一个潜在的更好的吸附。如图1、x射线衍射模式的原始的碳纳米管是由锋利的峰值和弱的顶峰。用x射线衍射模式的初步汇总/碳纳米管显示衍射模式的碳纳米管的结构,但展品包括一些明确晶体初步汇总(图峰。慢)。结果表明:初步汇总是一个non-stoichiometric、非晶相。

关于化工环保的论文题目大全高中英语

都比较简单。 Help the environment protect environment Environment problem environment pollution

关于环境保护的英语作文范文(1)EForexample,TFurthermore,whereverwegotoday,Pollutionis,infact,全世界的环境问题变得越来越严重。例如汽车污染的空气影响了人们的呼吸,工厂释放污染的气体,山上的树木被砍伐,污水不断被排人河里。另外,无论我们走到哪里,到处可见随意丢弃的垃圾。事实上,污染正威胁我们的生存。(2)TFortunately,MLI地球是我们的家园,我们有责任为我们自己和我们的后代去照顾好它。庆幸的是,愈来愈多的人们已经意识到这些问题。政府已经采取了很多措施去解决这些问题,法律已被通过以制止污染。

原文:Hello everyone! Today, about how to protect the environment are important, I think, from the leader's speech to the lot of the appeal to the masses, from here you locking the Diophrys Speech to the our theme - protection of the environment, my love Y Such a problem has been the best  Here, I think, the thought is: how do we protect our environment for the  This is because people live in harmony with the natural foundation, but also decide, and what our city today and what kind of a future? Mentioned this problem, I first think of the children  A year ago this time, my friends from overseas with children, to the park to take a  Children looked beautiful, there is a pair of beautiful  It is a pity that the eyes can not see him, he is  Along the way, he pulled my hand tightly, keep ask me: "Auntie, what are the Yellowstone? Yellowstone United States吗" I told him: Yellowstone beautiful, clean lake Yellowstone and绿绿grassland, and days are  He listened carefully, his face radiates with sun-like 笑不起来can I do, I forgot to tell him: Yellowstone lake is very clear on the lake may have fragmented nauseating trash; grass is green, the grass may have glare on the white plastic bag; days are blue may day side of the chimney there is desperate for a smoke! These may be nothing, but I can only tell him yes, Yellowstone beautiful, clean lake, and the绿绿 Later, the child give me a call that beautiful Yellowstone, even though he smelled the fresh air enough, but his heart has been at Yellowstone such as fairy  I know that the child is blind, although can not see, but he used white paper such as soul, and accepted the Yellowstone and to defend the city's  For such a child, how can I not surprised that he should have what kind of a soul ah! May be a child, then do not mean  When I look back to our children, we can easily find, our kids did not mind looking at this world, and intentions to accept his life in this  In the face of their own "Yellowstone beautiful, clean lake, and grass绿绿, and the sky is blue   soul desire, we are giving them the protection, put everything into reality, make them happy, joy , happiness, sunshine,  or let reality enormous palm stretched out to put them completely torn, shredded and destroyed? what hope do not leave them? No, never! Because we love children, because they are our  Give us new clothes, make food, let them on the best universities, taking most of the wide road, housing the biggest and most beautiful houses! However, these is what we give them in the future? This is the protection? No, they really are not necessary the  They need the future, in their hearts! That is why the face of clear water and blue sky, feel the most happy people there are our children; why after a major environmental pollution accident, the most distressed of the people there are our children; why chimney jungle, the most hated and some people inside they are our children; if they do not have a pure white soul environment, where they pretend to be under the clear water and blue sky of the desire; if they do not have a love of this city and this spiritual environment, they Health, where so many come to love and so hard? Today, if I am not too harsh to the eyes to look at the survival of our city, yes, today is the United States and Yellowstone, which is the result of the efforts of many people, but more beautiful is it not our hearts and minds of these children, and their The environment of this city deep love吗? And, is this person and the environment is the key to harmony吗? By the child's question, I think of the US these  In fact, everyone in our heart of hearts, but also are equipped with a green mountains and blue  Only, usually used to realize our heart of hearts desire, but rarely let their actions subject to the  That is why we have to listen to, how important it is to protect the environment, today we can see the city after the green, it was unwilling to want to go deep, green behind the emerging  That is why, in the face of economic interests, it is necessary to again and again to make way for the environmental protection! That is why, at动筷子, the reluctance of fear may have put a contaminated vegetables into his mouth, and finally have no choice but to express the reasons! The face of our children and ourselves, it is nothing they can do us? Why do we not put our hearts into action the desire of power! Why should not our children as we did, put their own inner strength have accumulated released, practical action put the green behind the elimination of various crises, the soul of the mountains那片copied to the reality of our life, the to return to the depths of their souls! Yes, we love Yellowstone, we love children, we love the environment, we should also love their own souls, as Yellowstone's an ordinary members of the public at our beautiful Yellowstone in the Imagination of the future - the ancient capital of bronze, iron and steel the cradle, the hometown of cement, apparel M However, we should be better in those pre-coupled with the idea of a - landscape of Metro do? Let us take action, starting from the soul, let us live in harmony with the natural environment! Yellowstone give a green future!翻译:大家好! 今天,关于保护环境是多么的重要,我想,从许多领导人的讲话到广大群众的呼吁,从在座诸位紧锁的双眉再到我们这次演讲的主题——保护环境、爱我黄石。已经为这样一个问题作了最好的说明。在这里,我所思、所想的是:我们该如何保护我们的心灵环境。因为这是人与自然和谐相处的基础, 同时也决定着,我们这个城市会有怎样的今天和怎样的一个未来? 提到这个问题时,我最先想到的是孩子。 一年前的这个时候,我带着外地朋友的孩子,到公园散步。孩子长得很漂亮,有一双很美的眼睛。可惜的是他的眼睛看不见了,他是个盲人。一路上,他紧紧拉着我的手,不停的问我:“阿姨,黄石是什么样子的?黄石美吗”我告诉他:黄石很美,黄石的湖水清清的,草地绿绿的,天是蓝蓝的。他认真的聆听着,脸上闪耀着阳光般的微笑。可我却笑不起来,我忘了告诉他:黄石的湖水是很清,可湖面上有零碎的令人恶心的垃圾;草很绿,可草地上有刺眼的白塑料袋;天很蓝,可天的那一边有吞云吐雾的烟囱!这些也许算不得什么,但我只能是告诉他,黄石很美,湖水清清的,草地绿绿的。 后来,这孩子给我打电话说,黄石很美,虽然他闻到的空气不够清新,但黄石在他心里已如童话。我知道,那孩子是个盲人,虽然看不见,但他用洁白如纸的心灵,接纳了黄石并捍卫了这座城市的美丽。对于这样一个孩子,我怎能不吃惊,他有着又该是怎样的一颗心灵啊! 也许,一个孩子的话,并不代表什么。可当我回头看看我们的孩子时,我们不难发现,我们的孩子何尝不是用心灵来看这个世界,用心来接纳他生活的这个城市。而面对他们所拥有的“黄石很美,湖水清清的,草地绿绿的,天是蓝蓝的……心灵渴望时,我们是该给予他们保护,把一切变成现实,令他们欣喜、欢乐、幸福、阳光、微笑。还是让现实伸出巨大的手掌来,把他们彻底撕裂、撕碎、摧毁?什么希望都不留给他们? 不,决不!因为,我们爱孩子,因为他们是我们的未来。我们给新衣、做美食、让他们上最好的大学,走最宽的马路,住最大的最漂亮的住房!但这些就是我们在给他们未来?这就是保护?不,他们真需要的未来不在这。他们需要的未来,在他们的心里!这就是为什么面对碧水蓝天,感到最欣喜的人里头有我们的孩子;为什么一次重大环境污染事故之后,最心疼的人里头有我们的孩子;为什么对烟囱丛林,最痛恨的人里头有的又是我们的孩子;如果,他们没有一颗纯净洁白的心灵环境,他们那里装得下对碧水蓝天的渴望;如果,他们没有一颗深爱着这个城市和这片环境的心灵,他们又那里生得出那么多的爱和狠呢? 今天,如果我以不太苛刻的眼光来审视我们生存的这个城市,是的,今天黄石是美的,这是许多人努力的结果,但更美的难道不是我们这些孩子的心灵,和他们对这个城市这片环境深沉的爱吗?而这不正是人与环境和谐相处的关键所在吗? 由孩子的问题,我想起了我们的这些成人。其实,在我们每一个人心灵深处,也都装有一片青山绿水。只是,我们常常习惯于意识到了心灵深处的渴望,却很少让自己的行动服从于心灵。这就是为什么我们一再聆听,保护环境是多么重要的今天,我们看到这个城市绿色之后,却不愿去深想,绿色背后所显现的种种危机。这就是为什么,在经济利益面前,要一而再,再而三的令环保让路!这就是为什么,在动筷子时,情愿担惊受怕的把一颗可能受过污染的蔬菜放进嘴里,最后表示无可奈何的原因!面对我们的孩子及我们自己,难道我们只能感到无奈?我们为什么,就不能把心灵的渴望变成我们行动的动力!我们为什么不能象我们的孩子那样,把自己内心已经积累的力量释放出来,用实际的行动把绿色背后的种种危机消除,把心灵深处的那片青山绿水复制到我们现实的生活当中来,向自己的心灵深处回归! 是的,我们深爱黄石,我们也爱孩子,我们深爱环境,我们应该更爱自己的心灵,作为黄石的一名普通的市民,我们在美好中畅想黄石的未来——青铜的古都,钢铁的摇篮,水泥的故乡,服装的新城。然而,我们是否应该在这些美好的设想前再加上一条——山水的新城呢?让我们行动起来,从心灵出发,让我们与自然环境和谐相处!给黄石一个绿色的未来!

What Environmental Disaster? We have developed a huge and thriving society; and in the process we deforest huge sections of land for living and livestock This decreases oxygen and increases carbon dioxide in the atmosphere; possibly adding to global warming though the greenhouse This mass population produces mass amounts of waste, so to deal with that we just throw it into the ground, which in turn contaminates our water supply and contributes to further We develop motorized transportation; and then burn non-renewable fossil fuels that put lead, carbon monoxide, sulfur and nitrogen oxides, ozone, excess carbon dioxide, and other harmful particulates into the atmosphere (Skjel & Whorton 95-108) This produces dangers like smog and cancer and contributes to global In the production of fuel we exhaust oil reserves and pollute the oceans through spills from This endangers wilderness and We produce an inert, easily producible propellant for aerosols; and then realize it's only inert on the Once it's bombarded by UV ray in the upper atmosphere it releases a highly destructive ion that wreaks havoc on the protective ozone layer shielding us from those same deadly UV rays, creating a hole in the layer allowing the radiation through, increasing cancer and other genetic We build rockets capable of going into space and breaking the earth's gravitational pull; and then immediately start to pollute this new environment with spent rockets and boosters along with other miscellaneous particles of debris (Curran and Haw 3) Michael Crichton writes, "What we call nature is a complex system of far greater subtlety than we are willing to We make a simplified view of nature and then botch it all You have to understand what you don't How many times must the point be made? How many times must we see the evidence? We build the Aswan Dam and claim it is going to revitalize the Instead, it destroys the fertile Nile Delta, produces parasitic infestation, and wrecks the Egyptian economy" (Jurassic Park 91) To the common person our current situation contains little All the advancement and improvements have done little to further our With each one has come a new environmental You almost need to evaluate each situation in terms of positives and However, at the root of all this chaos you'll find anthropocentrism, a human centered way of This way of thinking as an attitude, and moral theory, centers on humans as the highest of the significant The theory views nature and the environment in terms of their use value for humans only (Michaels 7) So all of the above developments with costs can be justified through their usefulness for The human centered ethic is deeply rooted in the past through the ancient Greek and Roman To pursue further development based on this ethic would be With our current numbers of population and rate of growth we're just asking for an environmental catastrophe of the highest magnitude to act as a wake up Granted that a great deal of the population realizes that unless action is taken today then we'll have to face that disaster The principle question is how to go about alleviating and repairing the damage we've already We also need to address how to prevent doing further damage for the sake of future The only problem with this view is that it is still a human centered It still sees the environment as a thing to be utilized by humans for their own It doesn't do The problems aren't getting Better ways of doing things are being researched, but the underlying problem is not receiving any So the environmental downward spiral is only slowed down and is not We've still got the same To take the conservationist attitude further you would see all sentient beings as holding moral standing and due This includes most of the animals in the world; any animal capable of experiencing pleasure and Through these experiences you form the basis for the extended moral If the animals perish through their habitat's destruction or outside influences, then their future pleasures will no longer When you take into account whole societies and communities of animals then the added value to the environment increases exponentially as you combine their happiness with the happiness never experienced by their future generations (Singer 275-276) So by taking this viewpoint you place even more intrinsic value on the environment through the experiences of all sentient animals But at a time when our behavior may well lead us to extinction, I see no reason to assume that we have any awareness at We are stubborn, self-destructive Any other view of our species is just a self-congratulatory delusion" (The Lost World 7-8) Granted this does not present a case for sentience on the basis of pain pleasure, but it does present an interesting way to think about classifying So you can see drawing the cut off line for even lower animals could present considerable You have trouble reaching an adequate definition of "" You are now facing how much awareness a creature has to perceive pain and pleasure along with joy from anticipation of future events to consider it morally If a cat is significant, but not a fish, what makes the cat a moral patient while the fish is not? Where is there a difference? There is a problem of arbitrarily assigning moral value when actual feelings and emotions are beyond To go a step further away from human sentience you would hold all living thing to be of moral This would then bring plants and non-sentient animals into the This view holds life as the ultimate intrinsic Beings have moral value in just being So life is viewed as an intrinsic good, and no verifying pleasures or pains being experienced are needed to allot this Anything living is held with a reverence for that life (Singer 277-278) 2】The Environmental Revolution - We Can Make a Difference! Since the first time having blown bubbles in my Open Water class, I've logged over 100 This love for diving has evolved into an intense passion towards protecting the ocean, and all of its I've chosen to put my love for the ocean into action, as an Actually, this passion extends out towards efforts that look to help all the planetary domains gain As such, I appreciate when others take the time educate me on those other realms for which I know less To be an environmentalist, one must choose the cause which resonates within ones sole, and run with One must be willing to educate people about the environment while being open to education from those people who support other Together we can help each other towards learning how to become a true "Environmentalist" We must all encourage positive collaboration and education as opposed to being against For example, sharks are being decimated to near extinction simply for their The fins are used to make Shark Fin soup, a delicacy popular particularly in Taiwan and S It would be easy to blame these communities for creating the However, in conversing with Asian environmentalists, they liken the culture around eating Shark Fin soup to the culture surrounding Americans eating turkey for Thanksgiving There are ongoing efforts to educate these people, by members of their own community, on just how dangerous this cultural practice is and the devastating impact this could have on their (our) world if all the sharks were to disappear as a Environmentalists everywhere are making a difference! Famous restaurants have taken endangered Swordfish off their menus, these same restaurants are buying wild-caught salmon (and boosting the economy of local fisheries in the process), laundromats have started selling green detergent, this just to name a few of these enlightened This is how the "Environmentalist" can begin the Just find something you believe in and make a One by one, we can make our planet a cleaner place to live, steeped in healthy bio-diversity for generations to 3Giving 1% to Protect Our Environment Though most of the world's surface is covered by water, since the Earth is so large relative to human horizons, there doesn't appear to be a shortage of However, when one begins to think of land in terms of a human resource, , a producer of food, a provider of wood, an expanse for passage, one realizes that many portions are either too lacking in nutrients, too high in elevation, too prone to flooding, or too cold or ice-ridden for extensive Furthermore, habitable lands are becoming less abundant due to desertification (the expansion of deserts due to the misuse of land), agricultural expansions and rising sea Since humans aren't the only species that need land, it isn't surprising that this resource is becoming limited for other forms of life In part as a result of this added stress on living things, we are also witnessing extinctions of grand proportions-at a rate of many thousands species per Since these losses are largely due to human actions, such as deforestation and non-native species introduction, many are beginning to pay attention to how we use and protect Recent ecological research has also recently provided a message of hope concerning the future well-being of life on this In the world today, scientists estimate that the Earth is losing at least 1 percent of species every ten years, and the percentage loss may be close to 5 Even if only the lower rate persists, the Earth will have lost near half of its biological diversity by Can this be possible? Many esteemed scientists think While the future appears bleak, several recent insights tell us that we have the potential to significantly reduce what amounts to a biotic holocaust, one not witnessed on Earth for over 60,000,000 While there are hopeful signs in the area of human activities (such as increased acreage of nature preserves and national parks), the hope of which I speak of here stems from specific characteristics of the other forms of life which may enable us to mutually coexist in the long The Earth's organisms are wonderfully varied in size, shape, function, behavior, and genetic One only need to consider that there are ~ 15,000 species of butterflies and ~50,000 species of mushrooms worldwide to begin to fathom the immensity of variety that this planet Yet, as different as the species come, the bulk of living things are also similar in a couple of very important Most living things live in relatively small regions and do not travel far from where they or their parents were In fact, recent biological and ecological work has determined that most land species are very particular about where they As opposed to humans whose choice of home is largely driven by economic and political forces (mobility driven by availability of wealth or forced relocation), flora and fauna find themselves in locations for which they are We now know that many species of insects and plants have a very restricted range in which they Very few organisms are ubiquitous like we It goes without saying that you aren't going to find a Great Blue Heron or a Grizzly visiting Antarctica or climbing M Everest; yet you might find the snow bear (recently discovered and previously known as the Abominable Snowman) doing the Recognizing that most living things are rather localized during their lifetimes has profound implications, both hopeful and On the one hand, it suggests that we can learn a lot about species by parking our scientific minds in specific On the other hand, it means that if we destroy even small areas of the globe we are likely causing great and even irreversible destruction to the species that are found We have also determined that there are specific locations on our planet where a disproportionate number of species For our species, Asia serves as the homeland for In fact more than 60 percent of humans lives on this largest of continents (which only makes up 24 percent of the land surface on the planet) With other life forms, geographic concentrations sometimes defy We only recently became aware that the vast majority of terrestrial (as distinguished from oceanic or riparian) species collectively live on just 1 percent of the Earth's land (If humans lived at a comparable concentration level, we'd all have to cluster together in an area roughly the size of Antarctica or twice that of A) This mind-blowing realization has prompted those that have been struggling to protect organisms a new way of thinking about such They have concluded that if we humans could somehow find a way to avoid disturbing just 1-2 percent of the land surface, nearly 70 percent of the world's terrestrial species might be able to Recently some conservationists have refocused their attention on these unique The regions of the globe that contain such a splendid array of biological diversity have been named "hot spots," a name that communicates their critical In what has to be the most beautiful books I have seen, Hotspots represents the collective work of scientists Russ and Cristina Mittermeier and Norman Myers as well as photographer Patricio Robles G In this oversized volume, these four scholars have assembled more than three hundred vivid photographs of some of the world's endangered species and threatened These absolutely breath-taking images come from the what they refer to as "the 25 most critically important regions" in the These regions originally constituted almost 12 percent of the world's land surface but now, due to human pressure at many levels, only a little more than 1 percent remains What makes these locations, which are found on all continents except Antarctica, so "hot" is that they are home to hordes of the Earth's plants and animals and they face imminent danger from a variety of human The Hotshot authors and others strongly believe that the global community can do wonders if these areas move to the top of our priority But what will have to happen for these spots to be protected? There are no simple answers to this central Unfortunately, those of us in the United States who have the luxury of time to even ponder such questions, face many obvious First, nearly all of the hotspots are located outside of our territorial boundaries, exceptions being the forests of Oregon and California as well as portions of Southern Florida (namely the Keys and the Everglades) Key hotspots are found in New Zealand, Madagascar, and Indonesia as well as the continental parts of south-east A Obviously we cannot expect that we will be able to force other countries to enact and enforce laws that will greatly reduce biological Yet, while many other countries have ratified the Biodiversity Treaty that was drafted at the 1992 Rio Earth Summit, it has never reached the floors of the US Congress for a vote; Canada, Japan, and the European Union are among those to ratify By this inaction our nation apparently lacks the wherewithal to support global conservation efforts as a matter of However, given that the wealthy nations in concert with international banks promote unsustainable extraction of resources in the world's developing countries, it would appear that we have an obligation to do If our national policy makers are unwilling to commit themselves to the protection of global ecosystems and species, we still have ourselves to look to for sources of positive All of us have tremendous purchasing power, especially in comparison to the majority of the other human residents on this planet; Barry Bearak, a Pulitzer Prize-winner journalist who recently spoke at Knox College's convocation, referred to the residents of the United States as "filthy rich," a conclusion he came to after spending a great deal of time in the poorer regions of the world, particularly Afghanistan and I What we buy makes a The environmental campaign to support shade coffee rather than sun coffee is just one of many attempts for the consumer to support sustainable practices in regions of great ecological According to the Northwest Shad Coffee Campaign, shade coffee agricultural allows for the extraction of a desired resource but at the same time allows between 3-8 times as many birds species to persist not to mention many more mid-size mammals as well as amphibians and Coffee is also a particularly important commodity in terms of the health of ecological systems because the countries that produce the bulk of it are precisely the same countries that are home to the majority of the world's species; the countries of Brazil, Bolivia, Indonesia, Vietnam collectively produce ~40 percent of the 17 billion pounds of coffee that are harvested each year (folks, that's more than 3 pounds per person!) Burdensome debts also force many developing countries to endlessly delay infrastructure Debt-for-nature swaps, an idea proposed by D Thomas Lovejoy of the World Wildlife Federation in the mid-1980s, have enabled poor countries to relieve foreign debt and international nongovernmental organizations (NGOs) to increase commitment to conservation programs both at the same In these swaps, NGOs pay off a poor country's debt to a bank or well-to-do country at greatly reduced costs in order to establish agreements for investment in national parks, for While not a cure-all, these efforts have begun the paradigm shift from unabated expansion and unhealthy extraction to one supportive of saving natural ecosystems and securing the health and welfare of all human Threats to these locations represent massive scale intrusions taken by societies found on every Unfortunately, there is so much that will be lost if these "special" places aren't quickly protected from future On the bright side though, so much of the world's genetic diversity lives in just a couple handfuls of "hotspots" that if these locations were saved hordes of species would be able to persist into the next The time is now to respond to this fairly recent observation and It is time for the world to begin to act like a civilized 21st Century It is incumbent upon us, those with time and wealth, to maintain the momentum that others have The masses of life forms are relying on us to make the best attempt at this daunting yet critical Hopefully our species will be sensible enough to leave at least 1 percent of land alone, so that other life forms may continue to Do we need all 100 percent? 写不下了,如果觉得不够,邮箱可否留一下,我继续补充

关于化工环保的论文题目大全初中

1、绿色的梦2、环保大世界3、环保,一直都在我们身边4、绿色在我手中5、环保的呼唤6、共同来环保7、蓝天的约会8、别让环保天使在流泪9、换我一片蓝天10、让“绿色”融入我们的生活11、蓝色星球、绿色踪迹12、环保清洁箱13、环保低碳每一天,幸福生活来相伴。希望能帮助到你写出更好地作文,望采纳,谢谢!又不懂得可以再问我哦!呵呵!追问你的题目都很好( ⊙o⊙ )。可不可以用绿色

2011-11-2 20:32 满意回答 1、绿色的梦2、环保大世界3、环保,一直都在我们身边4、绿色在我手中5、环保的呼唤6、共同来环保7、蓝天的约会8、别让环保天使在流泪9、换我一片蓝天10、让“绿色”融入我们的生活11、蓝色星球、绿色踪迹12、环保清洁箱13、环保低碳每一天,幸福生活来相伴。希望能帮助到你写出更好地作文,望采纳,谢谢!又不懂得可以再问我哦!呵呵!追问你的题目都很好( ⊙o⊙ )。可不可以用绿色的梦绿色在我手中蓝天的约会别让环保天使在流泪蓝色星球、绿色踪迹来写文章呢?

1、绿色的梦2、环保大世界3、环保,一直都在我们身边4、绿色在我手中5、环保的呼唤6、共同来环保7、蓝天的约会8、别让环保天使在流泪9、换我一片蓝天10、让“绿色”融入我们的生活11、蓝色星球、绿色踪迹12、环保清洁箱13、环保低碳每一天,幸福生活来相伴。希望能帮助到你写出更好地作文,望采纳,谢谢!又不懂得可以再问我哦!呵呵!

用稿网小编建议:可以看下《山西化工》作者的论文,都是有关化工方向的!《山西化工》杂志栏目设置科研与开发、综述与论坛、分析与测试 、专题讨论 、生产与应用 、化机与设备、环境保护 、煤化学工程

关于化工环保的论文题目大全初中生

论文摘要】 经过一段时间的社会探索和调查取证,我们已对化学污染与环境有所了解,并进行了初步的论述和实践验证。使我们正确的认识到当代化学污染与环境的种种矛盾。同时,对如何减少这一污染,加强环境保护维持生态平衡等问题提出了较为正确的方法。在此,希望能得到各界人士的关注。【关键词】 化学生产 环境污染 环保【论点的提出】 面对越来越被人们所关注环境污染问题,以及精神生活与物质生活的不断提高之下随之而来的环境影响也一度让人困惑不已。仅从陆地污染来说,那难以处理的塑料橡胶玻璃铝等废物,无一例外均是化工生产的产物,无论是在生产过程中还是使用过后的处理途径,均是难以权衡的种种矛盾。当然,环境污染的最直接最容易被人所感受的后果是使人类环境的质量下降,影响人类的生活质量身体健康和生产活动。为改变现状,用所学的现有知识探寻一些切实可行的环保方法,并对化学学科的知识得以巩固,我们终将论点得以提出。【围绕论点展开的讨论、调查】 在当今社会,概括地说,现如今的环境污染主要为三方面:海洋污染陆地污染空气污染。情况一:空气污染 大气污染是指大气中污染物浓度达到有害程度,超过了环境质量标准的现象。凡是能使空气质量变坏的物质都是大气污染物。大气污染物目前已知约有100多种。按其存在状态可分为两大类。一种是气溶胶状态污染物,另一种是气体状态污染物。气溶胶状态污染物主要有粉尘、烟液滴、雾、降尘、漂尘、悬浮物等。气体状态污染物主要有以二氧化硫为主的硫氧化合物,以二氧化氮为主的氮氧化合物,以二氧化碳为主的碳氧化合物以及碳、氢结合的碳氢化合物。大气中不仅含无机污染物,而且含有机污染物。随着人类不断开发新的物质,大气污染物的种类和数量也在不断变化着。空气中的主要污染物是碳氧化合物、硫氧化合物、氮氧化合物及氯氟烃类等,这些污染物对人体对生物的危害是十分可怕的。因此,我们必须加强防治,减少污染,保护人类。碳氧化合物(COx)主要来自矿物燃料的释放而产生,如汽车;摩托,以及工业生产中化工原料的燃烧,CO2能强烈吸收太阳光的红外线,使地球表面气温升高,造成所谓的“温室效应”,改变并破坏了生态平衡,CO与血红蛋白的亲合力为O2与血红蛋白亲合力的210倍,因而它使血红蛋白丧失输氧的能力而引起组织缺氧导致头痛、神经麻痹,甚至危及生命。由于大气层的二氧化碳的急剧增加,如果不治理,吸收二氧化碳的海洋表层将达到饱和,森林被大面积砍伐,到2057年世界的热带雨林可能全部消失,使空气中的二氧化碳不能充分吸收,在未来的100—150年间,大气层中的二氧化碳增加20%,平均气温提高5℃,到21世纪末,地球上的平均气温升高5至6℃,那时地球上将无现在的冬天。除COx以外CH4、NOx和氯氟烃类也能吸收红外辐射,加剧温室效应,因此,我们应重视治理。情况二:饮食污染食品中的化学污染物品种多,成分复杂。主要包括:化肥(氮肥、磷肥、钾肥等);农药(有机氯类、有机磷类、氨基甲酸酯类、沙蚕毒素类、有机砷类、有机氟类、有机汞类等);各种有害金属和非金属(汞、砷、铅、镉、镍、锑、硒、钴、氟等);各种有机物、无机物(苯并芘、亚硝胺、酸、碱、苯胺等)。食品中化学污染物涉及范围较广,污染情况也较复杂。在农业生产中,化肥的合理科学施用不但能够改善土壤结构,而且能够增加农作物产量。由于近几年大量长期地乱施化肥,使土壤的理化性状变劣,肥力下降,同时造成了农业环境的污染,进而给食品带来了污染。为了防止通过化肥、农药、带入土壤过量的有害物质,必须经常进行环境污染物含量的检测管理,加强环保教育,推广科学施肥技术,提高肥料的利用率,制定各种农药和作物使用、收获、食用的合理安全间隔期。要加强对工业“三废”的治理和对食品包装材料卫生的管理工作。制订食品中化学污染物的卫生标准,使之成为国家实行食品卫生监督执法的依据,用以保证人们的饮食安全,保障人体健康。情况三:海洋污染 海洋污染是指有害物质进入海洋环境 而造成的污染。可损害生物资源,危害人类健康,妨碍捕鱼和人类在海上的其他活动,损坏海水质量和环境质量等。 海洋污染物依其来源、性质和毒性,可分为以下几类:①石油及其产品(见海洋石油污染)。②金属和酸、碱。包括铬、锰、铁、铜、锌、银、镉 、锑 、汞 、铅等金属,磷、砷等非金属,以及酸和碱等。它们直接危害海洋生物的生存和影响其利用价值。③农药。主要由径流带入海洋。对海洋生物有危害。④放射性物质。主要来自核爆炸、核工业或核舰艇的排污。⑤有机废液和生活污水。由径流带入海洋。极严重的可形成赤潮。⑥热污染和固体废物。主要包括工业冷却水和工程残土、垃圾及疏浚泥等。前者入海后能提高局部海区的水温,使溶解氧的含量降低 ,影 响生物的新 陈代谢,甚至使生物群落发生改变;后者可破坏海滨环境和海洋生物的栖息环境。海洋污染的特点是,污染源多、持续性强,扩散范围广,难以控制。海洋污染造成的海水浑浊严重影响海洋植物(浮游植物和海藻)的光合作用,从而影响海域的生产力,对鱼类也有危害。重金属和有毒有机化合物等有毒物质在海域中累积,并通过海洋生物的富集作用,对海洋动物和以此为食的其他动物造成毒害。石油污染在海洋表面形成面积广大的油膜,阻止空气中的氧气向海水中溶解,同时石油的分解也消耗水中的溶解氧,造成海水缺氧,对海洋生物产生危害,并祸及海鸟和人类。由于好氧有机物污染引起的赤潮(海水富营养化的结果),造成海水缺氧,导致海洋生物死亡。海洋污染还会破坏海滨旅游资源。因此,海洋污染已经引起国际社会约来约多的重视。防止海洋污染的措施主要有:海洋开发与环境保护协调发展,立足于对污染源的治理;对海洋环境深入开展科学研究;健全环境保护法制,加强监测监视和管理;建立海上消除污染的组织;宣传教育;加强国际合作,共同保护海洋环境。【结论】 经过此次探究学习,我们深切地感受到现如今环境问题的严重性和急待于整改处理的紧迫性。我们作为公民一定要从我做起从生活的点滴做起,保护环境,为拥有一个更加良好的生存空间,贡献自己的力量!【致谢】 论文的最后,我们要感谢参与指导、讨论及协助过论文的全体人员;论文中采用的图文及数据资料的提供者;提供信息或帮助收集、整理资料的人员。

大气污染主要是指大气的化学性污染。大气中化学性污染物的种类很多,对人体危害严重的多达几十种。我国的大气污染属于煤炭型污染①(如图),主要的污染物是烟尘和二氧化硫,此外,还有氮氧化物和一氧化碳等。这些污染物主要通过呼吸道进入人体内,不经过肝脏的解毒作用,直接由血液运输到全身。所以,大气的化学性污染对人体健康的危害很大。这种危害可以分为慢性中毒、急性中毒和致癌作用三种。慢性中毒大气中化学性污染物的浓度一般比较低,对人体主要产生慢性毒害作用。科学研究表明,城市大气的化学性污染是慢性支气管炎、肺气肿和支气管哮喘等疾病的重要诱因。急性中毒在工厂大量排放有害气体并且无风、多雾时,大气中的化学污染物不易散开,就会使人急性中毒。例如,1961年,日本四日市的三家石油化工企业,因为不断地大量排放二氧化硫等化学性污染物,再加上无风的天气,致使当地居民哮喘病大发生。后来,当地的这种大气污染得到了治理,哮喘病的发病率也随着降低了。致癌作用大气中化学性污染物中具有致癌作用的有多环芳烃类(如3,4-苯并芘)和含Pb的化合物等,其中3,4-苯并芘引起肺癌的作用最强烈(如图)。燃烧的煤炭、行驶的汽车和香烟的烟雾中都含有很多的3,4-苯并芘。大气中的化学性污染物,还可以降落到水体和土壤中以及农作物上,被农作物吸收和富集后,进而危害人体健康。大气污染还包括大气的生物性污染和大气的放射性污染。大气的生物性污染物主要有病原菌、霉菌孢子和花粉。病原菌能使人患肺结核等传染病,霉菌孢子和花粉能使一些人产生过敏反应。大气的放射性污染物,主要来自原子能工业的放射性废弃物和医用X射线源等,这些污染物容易使人患皮肤癌和白血病等。②.水污染与人体健康河流、湖泊等水体被污染后(如图),对人体健康会造成严重的危害,这主要表现在以下三个方面。第一,饮用污染的水和食用污水中的生物,能使人中毒,甚至死亡。例如,1956年,日本熊本县的水俣湾地区出现了一些病因不明的患者。患者有痉挛、麻痹、运动失调、语言和听力发生障碍等症状,最后因无法治疗而痛苦地死去,人们称这种怪病为水俣病。科学家们后来研究清楚了这种病是由当地含Hg的工业废水造成的。Hg转化成甲基汞后,富集在鱼、虾和贝类的体内,人们如果长期食用这些鱼、虾和贝类,甲基汞就会引起以脑细胞损伤为主的慢性甲基汞中毒。孕妇体内的甲基汞,甚至能使患儿发育不良、智能低下和四肢变形。第二,被人畜粪便和生活垃圾污染了的水体,能够引起病毒性肝炎、细菌性痢疾等传染病,以及血吸虫病等寄生虫疾病。第三,一些具有致癌作用的化学物质,如砷 (As)、铬(Cr)、苯胺等污染水体后,可以在水体中的悬浮物、底泥和水生生物体内蓄积。长期饮用这样的污水,容易诱发癌症。③.固体废弃物污染与人体健康固体废弃物是指人类在生产和生活中丢弃的固体物质,如采矿业的废石,工业的废渣,废弃的塑料制品(如图),以及生活垃圾。应当认识到,固体废弃物只是在某一过程或某一方面没有使用价值,实际上往往可以作为另一生产过程的原料被利用,因此,固体废弃物又叫“放在错误地点的原料”。但是,这些“放在错误地点的原料”,往往含有多种对人体健康有害的物质,如果不及时加以利用,长期堆放,越积越多,就会污染生态环境,对人体健康造成危害。④.噪声污染与人体健康噪声对人的危害是多方面的:第一,损伤听力。长期在强噪声中工作,听力就会下降,甚至造成噪声性耳聋。第二,干扰睡眠。当人的睡眠受到噪声的干扰时,就不能消除疲劳、恢复体力。第三,诱发多种疾病。噪声会使人处在紧张状态,致使心率加快、血压升高,甚至诱发胃肠溃疡和内分泌系统功能紊乱等疾病。第四,影响心理健康。噪声会使人心情烦躁,不能集中精力学习和工作,并且容易引发工伤和交通事故。因此,我们应当采取多种措施,防治环境污染,使包括人类在内的所有生物都生活在美好的生态环3.环境污染对生物的影响,环境污染与“三致作用”环境污染往往具有使人或哺乳动物致癌、致突变和致畸的作用,统称“三致作用”。“三致作用”的危害,一般需要经过比较长的时间才显露出来,有些危害甚至影响到后代。①.致癌作用致癌作用是指导致人或哺乳动物患癌症的作用。早在1775年,英国医生波特就发现清扫烟囱的工人易患阴囊癌,他认为患阴囊癌与经常接触煤烟灰有关。1915 年,日本科学家通过实验证实,煤焦油可以诱发皮肤癌。污染物中能够诱发人或哺乳动物患癌症的物质叫做致癌物。致癌物可以分为化学性致癌物(如亚硝酸盐、石棉和生产蚊香用的双氯甲醚)、物理性致癌物(如镭的核聚变物)和生物性致癌物(如黄曲霉毒素)三类。②.致突变作用致突变作用是指导致人或哺乳动物发生基因突变、染色体结构变异或染色体数目变异的作用。人或哺乳动物的生殖细胞如果发生突变,可以影响妊娠过程,导致不孕或胚胎早期死亡等。人或哺乳动物的体细胞如果发生突变,可以导致癌症的发生。常见的致突变物有亚硝胺类、甲醛、苯和敌敌畏等。③.致畸作用致畸作用是指作用于妊娠母体,干扰胚胎的正常发育,导致新生儿或幼小哺乳动物先天性畸形的作用。20世纪60年代初,西欧和日本出现了一些畸形新生儿。科学家们经过研究发现,原来孕妇在怀孕后的30天~50天内,服用了一种叫做“反应停”的镇静药,这种药具有致畸作用。目前已经确认的致畸物有甲基汞和某些病毒等

1引言环境化学(environmental chemistry)是研究化学物质,特别是化学污染物在环境中的各种存在形态及特性、迁移转化规律、污染物对生态环境和人类影响的科学,主要研究有害化学物质在环境介质中的存在、化学特性、行为和效应及其控制的化学原理和方法。它是环境科学研究和环境科学的基础内容之一。2概述造成环境污染的因素可分为物理的、化学的及生物学的三方面,而其中化学物质引起的污染约占80%-90%。环境化学即是从化学的角度出发,探讨由于人类活动而引起的环境质量的变化规律及其保护和治理环境的方法原理。就其主要内容而言,环境化学除了研究环境污染物的检测方法和原理(属于环境分析化学的范围)及探讨环境污染和治理技术中的化学、化工原理和化学过程等问题外,需进一步在原子及分子水平上,用物理化学等方法研究环境中化学污染物的发生起源、迁移分布、相互反应、转化机制、状态结构的变化、污染效应和最终归宿。随着环境化学研究的深化,为环境科学的发展奠定了坚实的基础,为治理环境污染提供了重要的科学依据[1]。 从学科研究任务来说,环境化学的特点是要从微观的原子、分子水平上来研究宏观的环境现象和变化的化学机制及其防治途径,其核心是研究化学污染物在环境中的化学转化和效应。它所研究的环境本身是一个多因素的开放性体系,变量多、条件较复杂,许多化学原理和方法则不易直接运用。 3主要研究领域和内容1研究污染物(主要是化学污染物)在环境(包括大气圈、水圈、土壤岩石圈和生物圈)中的迁移、转化的基本规律,形成环境污染化学这一介于环境科学与化学之间的一门新兴的边缘分支学科。2研究环境中污染物的种类和成分及其定量分析方法,形成环境分析化学(常简称环境分析)。它是环境化学的分支学科。3研究环境中天然的和人为释放的化学性质的迁移、转化规律及其与环境质量和人类健康的关系,形成环境地球化学。它是介于环境与地球化学之间的一门新兴的边缘分支学科。4环境概况及解决方法1有害化学品的污染危害有害化学品是指任何已经被确认为对人类健康和环境有危害性的化学品。随着工农业迅猛发展,有毒有害污染源随处可见,而给人类造成的灾害要属有毒有害化学品为最重。化学品侵入环境的途径几乎是全方位的,其中最主要的侵入途径可大至分为四种,11人为施用直接进入环境;12在生产、加工、储存过程中,作为化学污染物以废水、废气和废渣等形式排放进入环境;13在生产、储存和运输过程中由于着火、爆炸、泄漏等突发性化学事故,致使大量有害化学品外泄进入环境;14在石油、煤炭等燃料燃烧过程中以及家庭装饰等日常生活使用中直接排入或者使用后作为废弃物进入环境。 进入环境的有害化学物质对人体健康和环境造成了严重危害或潜在危险。 以农药这一有害化学品为例,随着农药科技和农业的迅速发展,农药的使用越来越普遍,从不使用农药的自然农业发展到使用农药的现代农业,对于我国这样一个人口众多,耕地面积紧张的大国,农药在解决农作物的自然灾害,促进粮食增产方面发挥了重要作用。但由于农药是一类有毒化学物质,而且是人为主动投加到环境当中,长期大量使用,对环境生物安全和人体健康,必将产生较大的不利影响。这就给人们提出了一个不容回避的现实问题,在充分肯定农药的有利作用的同时,需要充分认识农药对生态环境和人体健康产生的危害[2]。 同时工业废水也是对环境最大的污染源之一,譬如工业废水中的氰化物等有害物质严重污染了全国主要江河湖泊,使水质恶化,特别是淮河、海河、辽河、滇池、巢湖和太湖(简称“三河三湖”)水污染问题更为突出,给当地经济发展和人民生活带来严重影响。工业废水中排放的氰化物对鱼类危害更甚,含苯酚废水可抑制水中细菌、藻类和软体动物生长。用含酚废水灌溉农田能抑制光合作用和酶的活性,破坏农作物生长素的形成,造成减产。生活污水和某些工业废水中常含有一定量的氮和磷,进入水体后会使封闭性湖泊、海湾形成富营养化,造成浮游藻类大量繁殖、水体透明度下降、溶解氧降低、威胁鱼类生存、水质发臭出现“赤潮”。化学废弃物的不适当处置,会造成土壤板结和地下水污染,直接威胁人体健康和人类生存。目前癌症已成为严重威胁人类健康和生命的疾病之一。据世界卫生组织估计,全世界每年有癌症患者600万人,每年因癌症死亡约500万人,占死亡总人数的1/10。我国每年癌症新发病人有150万人,死亡110万人,而造成人类癌症的原因10%~15%与化学因素有关。 再则冷冻与空调设备释放出的氯氟烃气体造成大气平流层的臭氧层破坏,引起地球表面紫外线辐照增强,使人群皮肤癌发病率上升。燃煤发电厂等排放的二氧化硫引起的酸雨导致河流湖泊酸化,影响鱼类繁殖甚至种群消失。土壤酸度增高可使细菌种类减少,肥力减退,影响作物生长。酸雨还使土壤中锰、铜、铅、镉和锌等重金属转化为可溶性化合物,转移进入江河湖泊引起水质污染。 有害化学品对人体健康和环境的危害是我国环境保护中亟待解决的重要问题,必须引起全社会高度重视。2化学品的环境污染控制我国是化工生产量较大的国家,化工产业已形成一个比较完善的体系。要想控制或减少对环境的污染,应从化学品的生产过程中的污染控制方面加以考虑,首先应了解化工厂的污染情况,包括:污染源种类、主要污染物、排放情况、环保措施以及周围环境敏感性等。特别应对污染源分布进行调查和污染物排放量的统计、同时应了解污染影响类型,如是属于一次污染或二次污染、长期污染或短期污染、可逆污染或不可逆污染、局部污染或大面积污染、单因素污染或多因素复合污染等等。化学品的污染危害控制,应采取以下主要措施:21制定和健全环境立法,加强环境执法力度我国于1979年已经颁布了《中华人民共和国环境保护法》,该法是我国有关环境保护的综合性法规,也是环境保护领域的基本法律,主要规定了国家的环境政策、环境保护的方针、原则和措施等;国务院还制定了《水污染防治法实施细则》、《大气污染防治法实施细则》和《固体废物污染环境防治法》等环境保护法律、国务院颁布了《化学危险物品安全管理条例》和《农药管理条例》等化学品管理行政法规。国家还专门制定了环境保护标准、污染物排放标准、环保基础标准和环保方法标准。如已颁布的环境质量标准有《环境空气质量标准》、《地面水环境质量》等;污染物排放准有《工业"三废"排放标准》、《污水综合排放标准》等等;同时地方性环境保护法规、环境保护部门规范性文件都作了明确规定等。这些法律法规的颁布实施对加强有害化学品的安全管理,防止化学物质污染环境和保障人民群众身体健康发挥了重要作用。但是,我国尚未建立起完整的化学物质环境管理法规体系,对化学物质的生产、储存、运输、销售、使用和进出口实行全过程有效管理[3]。 我国现行化学品环境立法需要针对当前化学品管理法律法规中的薄弱环节加以补充完善,并与国际化学品管理体制接轨。此外,当前迫切需要加强的是对化学品管理法律法规的执法力度。对环境保护造成严重污染的企业,应依法给予追究,对人身由环境污染造成危害的应依据法律给予处罚和赔偿。这在日本等工业发达国家早已实行了的法律管理制度。我们还应通过宣传教育提高从事化学危险品生产、贮存、经营、运输和使用的单位和个人的遵法守法意识,加强对有害化学品的安全和环境管理。特别是应按着我国环境保护法来严格管理有害化学品。22加强对重点有害化学品的环境管理 建立相应登记管理制度,对那些已知或怀疑对人类有致癌、致畸、致突变物质或者对环境有严重危害化学品采取禁止或严格限制使用和淘汰、替代措施,以有效减少这些化学物质的污染危害。23推行清洁生产,严格控制有害化学物质向环境中排放 化工污染之所以严重,一个重要原因是一大批老企业长期以来没有进行技术改造,资源、能源消耗太高,排污量太大。全面推行清洁技术改造,通过改革工艺设备,尽可能把"三废"消除在生产过程之中,减轻末端治理的负担,是改变化工生产消耗高、污染大的落后局面的根本途径。积极推行清洁生产,就要选用清洁原料,采用无毒无害物质替代有害原材料、设计清洁工艺、生产清洁产品。同时改善和加强企业内部安全管理等措施,在污染的源头削减污染物和废物产生量并回收利用废物。最大限度消除或削减有害物质的排放。对通过预防不能解决的污染物,应采取源控制措施进行安全处理处置,使污染物达到国家或地方规定的排放标准。24强化危险废物管理 危险废物是指具有易燃性、腐蚀性、反应性、爆炸性、急性毒性、传染性等危险特性之一的废弃物。根据《固体废物污染环境防治法》的规定,从事危险废物的收集、贮存、处置经营活动的单位,必须经环境保护行政主管部门批准并领取经营许可证。25公众监督通过建立和实行危险化学品的安全标签和安全技术说明书制度,在企业员工和化学品使用者中普及化学品安全和环境保护知识。并在全社会积极宣传有关化学品安全与环境保护知识,提高社会公众对有害化学品的危害、安全防护措施和环境保护的认识,大力鼓励公众参与监督有害化学物质的污染防治。5结论要时刻关注生态系统的表现,尽早发现失调的信息,及时扭转不利的情况。积极提高生态系统的抗干扰能力,保护生态系统,预防生态失调。参考文献[1]袁加程环境化学化学工业出版社,2010[2]张瑾环境化学导论化学工业出版社,2008[3]周启星,李培军污染生态学,科学出版社,2001

关于化工环保的论文题目大全初中生作文

1、绿色的梦2、环保大世界3、环保,一直都在我们身边4、绿色在我手中5、环保的呼唤6、共同来环保7、蓝天的约会8、别让环保天使在流泪9、换我一片蓝天10、让“绿色”融入我们的生活11、蓝色星球、绿色踪迹12、环保清洁箱13、环保低碳每一天,幸福生活来相伴。希望能帮助到你写出更好地作文,望采纳,谢谢!又不懂得可以再问我哦!呵呵!

1、绿色的梦2、环保大世界3、环保,一直都在我们身边4、绿色在我手中5、环保的呼唤6、共同来环保7、蓝天的约会8、别让环保天使在流泪9、换我一片蓝天10、让“绿色”融入我们的生活11、蓝色星球、绿色踪迹12、环保清洁箱13、环保低碳每一天,幸福生活来相伴。希望能帮助到你写出更好地作文,望采纳,谢谢!又不懂得可以再问我哦!呵呵!追问你的题目都很好( ⊙o⊙ )。可不可以用绿色

“地球”是人类共同的家园,保护环境,就是保护人类生存的环境。所以,让我们共同提高环保意识,从我做起,从身边的小事做起,从一张小纸片做起。   同学们,你们知道吗?虽然“环保”两个字写起来十分简单,但要做起来可就不是那样简单了。所以到现在为止,还有很多人没有做到“环保”。如果再这样下去,在五年后、十年后,未来地球将会变成什么样子呢?可能天是灰蒙蒙的,再也看不到云;到处可以看到垃圾,没有人清扫;还是每隔几天就会有一次可怕地沙尘暴······,可能还有很多我们无法想象的东西。   这样真是太可怕了。可是再看看,现在真正在环保的人又有多少呢?你们看街道边的垃圾桶,每一个旁边都有几个垃圾,尽管这些垃圾离垃圾桶只有一步之遥,可是四周来来往往的人没有一个主动将垃圾捡起来放到垃圾桶里,而态度大多都是视而不见。而且,现在每年又有多少棵树被砍伐,送去工厂,做成一次性筷子,做成纸巾给那些贪图方便的人使用,或是拿到市场上去卖······   这有一些工厂,有废水就往河里排放,使现在很多小河里的水变得浑浊不清,散发着臭气,而且还有毒。所以现在有很多河里的小鱼都死了。我想,如它们会说话,可能会说:“醒醒吧,人类!不要再破坏环境了,不要再破坏自己美丽的家了,你们一定会后悔莫及的。难道你们不想要这个家了?如果你们还想要,那就请你们马上行动,来保护我们吧!”。   其实想挽救这个地球很简单,只需从身边的小事做起。看到地上有垃圾,弯下腰把垃圾捡起;保护野生动物,不再贪图他们那鲜美的肉;或是呼吁人们爱护环境······。   让我们共同来保护我们的这个美好的家园吧!

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