交通环境污染英语作文(精选20篇)
英语作文中人物传记其实我们不需要写得很详细,把重点说清楚就好。下面是小编分享的交通环境污染英语作文,一起来看一下吧。
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837二年级关于环境保护的英语作文
全文共 928 字
+ 加入清单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 artificially. 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 environment. Therefore, We need some countermeasures from the viewpoint to prevent the city environment form disaster and to manage environmental risks. 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 life
地球规模变化的气候带来了一种新的自然灾害和发达和复杂的城市体系持有人为扩大损失的潜在风险。还人以来一直破坏健康的巨大数量的化学物质已经被生产和用于追求方便和各种有毒物质无意中产生和积累的环境。因此,我们需要一些对策的观点,以防止城市环境灾难和环境风险管理形式。所以我们将开发和改进一个新的风险管理系统和防灾系统保护和创造城市环境,让人感觉容易和声音在他们的生活
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篇1:高考环境保护英语作文
全文共 2115 字
+ 加入清单Protect environmental health and build a good home -- speech
The teachers! The classmates! Everybody is good! My topic today is "protecting the sanitation of the environment and building a beautiful homeland."
We live on earth, and the earths environment is protected by everyone. Head is LanYingYing day, is at the foot of green land, the majestic beauty of high mountain, the flow of water on the bottom, the tall green trees, the bright beautiful flowers, the earths favor of human is so beautiful environment, we can feel life here is very comfortable and happy, some people, however, not only protect the environment, also damage the environment, this is what a shameful act.
Currently, yichang is creating a national health city. There is no national health city in hubei province, but there are national health cities in the underdeveloped areas of the west. The city of yichang province, the world three gorges dam and ge zhou dam are located in yichang, the golden three gorges, the silver dam, the green yichang. The beauty of the mountain.
In the second half of last year, we started the "triple town" campaign and should start from me. Now the streets are littered with litter, spitting and scribbling. The dustmen tore up the rubbish ads, the people secretly taped up, and the people scrawled on the walls with paint, called the "psoriasis" of the street. These dirty and messy phenomena and to be governed.
The three orders of the state have led to the prevention and reduction of pollution and pollution, and the protection of air and environment. Now there are more and more cars, and the emissions are getting worse and worse. There are factories, sewage, pollution and water quality that directly harm crops and live life.
What is the benefit of this environmental destruction, and the destruction of the environment? Teachers, students, and to strengthen the awareness of environmental protection, improve their quality of civilization, actively join the "tri-cities lianchuang" activities, must start from me, starts from the minor matter, do a civilized, townsfolk hand in hand to build better homes!
篇2:未来交通状况英语作文
全文共 1563 字
+ 加入清单导语:随着经济的发展,交通正成为现代城市最大的问题之一。你觉得未来的交通是怎么样的呢?下面是yuwenmi小编为大家整理的优秀作文,欢迎阅读与借鉴,谢谢!
With the development of economy ,traffic is becoming one of the greatest problems of a modern city. One problem is pollution .The waste gases from the exhaust pipes are great enemies to the air. And there are so many cars and buses in the city that the harm they cause to the environment is considerable. Another problem is crowdedness .City inhabitants are so familiar with traffic jams that they are part of their lives. Time wasted on traffic and people are made impatient by the awful traffic. Worse than that ,traffic accidents are real-life disasters of blood and death .Traffic has become one of the nightmares of people living in cities. To build highways and bridges only works out part of the problem .Cars and buses should be improved to give less waste gases. Government should encourage citizens to take buses so that there is less traffic on road. People should obey traffic rules and try not to make trouble on road. City area should be expanded so that there is more space for wide roads. Maybe low-pollution high-efficiency means of traffic should be invented .Only after we pay enough attention to the problem will it be possible for us to solve it .
【参考译文】
随着经济的发展,交通正成为现代城市最大的问题之一。一个问题是污染,排气管排出的废气是空气的大敌。城市里有太多的汽车和公共汽车,它们对环境造成的危害是相当大的。另一个问题是拥挤。城市居民交通拥堵,他们是他们生活的一部分,那么熟悉。时间浪费在交通上,人们因交通拥挤而变得不耐烦。更糟糕的是,交通事故是现实中的血与死的灾难,交通已经成为城市居民的梦魇之一。修建公路和桥梁只能解决部分问题。汽车和公共汽车应该改进,减少废气排放。政府应该鼓励市民坐公共汽车,这样路上的交通量就少了。人们应该遵守交通规则,尽量不要在路上闹事。扩大城市面积,拓宽道路。也许应该发明低污染、高效率的交通工具,只有在我们足够重视这个问题之后,我们才能解决它。
篇3:有关污染英语作文高中
全文共 882 字
+ 加入清单In the past few decades, our Earth has changed a lot, but to the bad
direction. Among these changes, the air pollutions resulting from a huge number
of automobiles and coal-burning is almost the severest. The severe air pollution
alarms humans of the heavy load we have exerted on Earth by our insatiable
production and usage of automobiles. However, with the deepening of
urbanization, more cars are needed, which will make the air pollution worse.
Therefore, the following actions should be taken. First, we should apply the
most cutting-edge technologies in order to adopt new forms of energy as
substitutes for fossil fuels. Second, try hard to develop possible
transportation means, which are enviromental friendly. So that the citizens can
reduce the dependence on cars. In short, our humans should take responsibilities
for the air pollution and have to find ways to solve this problem.
篇4:关于环境污染的句子
全文共 4616 字
+ 加入清单低碳生活由我做起,节约用水绝不浪费,汽车低排减少污染,小编收集了关于环境污染的句子,欢迎阅读,
1、每周少开两天车,公交轻轨乐趣多,夏天空调要慎用,排气污染要防控,减少使用传真机,电子邮件可代替,点滴生活在身边,做到低碳并不难,为了洁净大家园,从我做起每一天!
2、你还在用呛人的汽车尾气污染空气,用刺耳的噪音干扰坏境,用无时无刻的交通堵塞搅乱自己的生活?世界无车日,让地球休息一天,让你休息一天!
3、在交配的过程中,最重要的一点是必须在水中进行。青蛙是体外受精的变态发育动物。在水中进行繁殖是为了提高受精的机率。当然在水污染的环境中是不可能实现的……当我们走到青蛙跟前,就会看到雄蛙的鳃边有一对气囔,所以只有雄蛙才可以鸣叫。
4、世界无车日,送你一份宁静,不带噪音的污染;送你一份健康,不带尾气的伤害;送你一份自由,不带出行的阻碍。送你一天步行,给他人一天“绿色”。
5、地球不富有,资源其实很短缺,不少河流已阻截,土地逐渐变荒漠,许多物种在灭绝,空气污染令人忧,森林锐减横遭劫。世界环境日,保护环境共担责!
6、人大代表:三峡库区污染若不治理将影响南水北调
7、夏至日节能环保熄灯一小时,低耗环保减少排放和污染。千头万绪牵连广,大小厂矿都有责。个人单位不列外,大家一起动手管。坚持不懈才凸显,绿色无污美家园。亚洲熄灯一小时,众人共创明天丽。
8、地球严重超载和污染,上帝已偷偷在变脸,2012也许不是真的预言,但是人类如果不检点,2012迟早会兑现!低碳环保从点滴做起,让地球母亲永远不哭泣!
9、乌烟瘴气的蓝天,河水里污染泛滥。究竟是什么样的污染源,污染了我们美好的明天。为了地球母亲的笑颜,为了子孙还有美好的世间。让我们实行低碳生活,让幸福永绵绵。
10、一不偷,二不抢,三不到处把祸闯;无噪声,无污染,只是偶尔转一转;不占地,不占房,马路公园随便逛;谈谈情,说说爱,绿色情人节愿你开心谈恋爱。
11、臭氧气层真神奇,人类健康离不了。万物美丽有贡献,人类减少皮肤癌。植物生长茂怏然,宇宙地球美家园。臭氧层保护日,保护臭氧爱环境,源头做起无污染。
12、最动人是你那纯净、明亮、炽热的眼睛,恰似一泓清泉,源自心灵深处。这清泉没有名利的喧嚣,没有世俗的污染,有的是对美好生活的热爱与奔流入海的向往。
13、 当明媚的春天来到,春姑娘给垂柳脱去灰白色的衣裳,细长的柳条上鼓出点点嫩黄的叶芽,好像披上了一件淡绿的外套。春风吹过,细长的柳枝在风中婀娜多姿地摇摆着,真是美丽极了。每当夏天到来时,小伙伴们都喜欢在柳树下乘凉、做游戏。柳树默默奉献着它的绿荫,为人们抵抗空气污染。
14、天天开轿车,污染空气多又多,健康问题很难说,徒步行一分,锻炼身体素质帮,健康才会多又多,世界无车日,祝你天天好心情,快乐每一天!
15、少一点排放,多一点绿色,少一点污染,多一点环保,少一点浪费,多一点节约,地球就可以给我们少一点灾害,多一点恬静。
16、爱你的心,不含转基因,天然而清新;爱的天空,环保无污染,纯洁而清澈;爱的时光,无需保鲜剂,灿烂而清爽。绿色情人节,爱你不雕琢,幸福又快活!
17、拒绝尾气,控制噪声。停开汽车,开始步行。减少污染,你我使命。绿色环保,健康一生。世界无车日,你我同关注,低碳环保生活,绽放绿色光彩。
18、低碳生活由我做起,节约用水绝不浪费,汽车低排减少污染,随手关灯养成习惯,爱护花草亲近自然,保护家园绿色发展。
19、一不偷二不抢三,不到处把祸闯;无噪声无污染,只是偶尔转一转;不占地不占房,马路公园随便逛;谈谈情说说爱,绿色情人节愿你开心谈恋爱。
20、低碳生活由我做起,节约用水绝不浪费,汽车低排减少污染,随手关灯养成习惯,爱护花草亲近自然,保护家园绿色发展。
21、一洼洼的不是稻田而是油烟。一片片的不再是树林而是污染,一丛丛的不再是小草而是渣山。一条条的不是小路而是垃圾练成串,爱护环境,刻不容缓,下一代的梦想,这一代的明天,不要因为今天留下遗憾。
22、唐僧:喂喂喂!大家不要生气,生气会犯了嗔戒的!悟空你也太调皮了,我跟你说过叫你不要乱扔东西,你怎么又…你看我还没说完你又把棍子给扔掉了!月光宝盒是宝物,你把他扔掉会污染环境,要是砸到小朋友怎么办?就算砸不到小朋友砸到那些花花草草也是不对的。
23、绿色情人节到了,要做到爱情资源利用合理化,以低能耗,高效率为宗旨,坚持爱情原生态,无污染,无公害的原则,从而保证爱情可持续健康发展,愿你绿色情人节快乐,祝福也要循环利用,记得转发哟。
24、低碳生活由我做起,节约用水绝不浪费,汽车低排减少污染,随手关灯养成习惯,爱护花草亲近自然,保护家园绿色发展。
25、世界卫生日,挖掉垃圾的墙角,让肮脏无处可逃;端掉细菌的窝点,将病毒一网打尽;清除的污染团伙,还卫生生机勃勃,关注卫生,关注身心健康,祝你生活顺心,世界卫生日快乐。
26、世界环境日说环境,生态破坏水土流失,环境污染日益严重,温室效应冰川融化,保护环境刻不容缓,人人有责小处做起,多做宣传大家皆知,人人动手环境变好。
27、一山一水一世界,山清水秀尽开颜。人杰地灵花盛开,生态平衡山水间。水遭污染山变色,禾苗枯萎动物远。人们生命无保障,再无美好幸福园。世界水日,远离污染,保护水源,刻不容缓!
28、一不偷二不抢三,不到处把祸闯;无噪声无污染,只是偶尔转一转;不占地不占房,马路公园随便逛;谈谈情说说爱,绿色情人节愿你开心谈恋爱。
29、缘分不含转基因,真爱总是很低碳,浪漫无污染,甜蜜纯天然。虽没有金山银山,但爱你的心如绿水青山,纯粹而透明。绿色情人节,爱你,绝无虚假添加剂。
30、少一点排放,多一点绿色,少一点污染,多一点环保,少一点浪费,多一点节约,地球就可以给我们少一点灾害,多一点恬静。
31、像你这种可恶的家伙:只能演电视剧里的一陀粪,比不上路边被狗洒过尿的口香糖,连如花都帅你10倍以上,找女朋友得去动物园甚至要离开地球,想要自杀只会有人劝你不要留下尸体以免污染环境。
32、过完三八是三九,妇女节后河边走,长江黄河母亲哟,她们近况真堪忧,河水污染鱼虾走,污染超标河水臭。保护母亲河,迫在眉睫,势在必行,抓紧行动起来吧。
33、汽车尾气的污染,成了空气的心伤,渐渐地全球变暖,成了人类的忧伤,想要告别忧伤,请阻止地球变暖,想要阻止变暖,请停止污染,想要没有污染,请将爱车停放。步行上场,走进低碳!
34、乌烟瘴气的蓝天,河水里污染泛滥。究竟是什么样的污染源,污染了我们美好的明天。为了地球母亲的笑颜,为了子孙还有美好的世间。让我们实行低碳生活,让幸福永绵绵。
35、少一点排放,多一点绿色,少一点污染,多一点环保,少一点浪费,多一点节约,地球就可以给我们少一点灾害,多一点恬静。
36、世界环境日到,养生贴士祝福到,愿你时时要环保,污染习气要抛掉,花草树木保护好,少排污水要记牢,共创家园搞绿化,幸福生活美心间,祝你节日快乐。
37、乌烟瘴气的蓝天,河水里污染泛滥。究竟是什么样的污染源,污染了我们美好的明天。为了地球母亲的笑颜,为了子孙还有美好的世间。让我们实行低碳生活,让幸福永绵绵。
38、少一点浪费,多一点节约;少一点耗能,多一点节能;少一点污染,多一点环保。世界地球日,低碳环保,节能减排,愿你多一点认识,多一点实践,祝愿世界多一点美丽,生活多一点美好!
39、地球之上海洋广,蓝色星球人畜旺。可惜如今污染太嚣张,海洋变色鱼类亡。陆地淡水更紧张,多少地区缺水又少粮。世界水日,我们要保护水资源,从现在做起,从我做起,让地球永不变色!
40、点燃香烟一根,吸入肺部癌变,吐出二手烟雾,危害广大群众,伤害身体健康,污染清新环境,世界无烟日,劝君戒掉香烟,为了您的健康,请远离香烟!
41、爱情之花需呵护,心灵纯净才永驻。谎话连篇靠不住,虚情假意是毒素。绿色生活无污染,花开万年情不负。绿色情人节到了,愿我们的爱情永远真诚,幸福!
42、没有汽车的轰鸣,多一份祥和;没有尾气的污染,多一份健康;没有喇叭的噪音,多一份安静。世界无车日,绿色出行,需要你的加入。
43、低碳生活由我做起,节约用水绝不浪费,汽车低排减少污染,随手关灯养成习惯,爱护花草亲近自然,保护家园绿色发展。
44、一洼洼的不是稻田而是油烟。一片片的不再是树林而是污染,一丛丛的不再是小草而是渣山。一条条的不是小路而是垃圾练成串,爱护环境,刻不容缓,下一代的梦想,这一代的明天,不要因为今天留下遗憾。
45、把垃圾捡起,来拥抱大地,捡起的是美德,还原的是美丽;把树木种植,让天空更蓝,添一份绿色,享一分惬意;省一些能源,减一些污染,做一份贡献,加一把努力,地球一小时,爱护环境,请从我做起!
46、一洼洼的不是稻田而是油烟。一片片的不再是树林而是污染,一丛丛的不再是小草而是渣山。一条条的不是小路而是垃圾练成串,爱护环境,刻不容缓,下一代的梦想,这一代的明天,不要因为今天留下遗憾。
47、爱心接力传一传,帮扶贫困品德高;环保行动搞一搞,低碳绿色无污染;举止言行律一律,友善和谐才文明;文明宣言读一读,共同努力讲文明!
48、少一点排放,多一点绿色,少一点污染,多一点环保,少一点浪费,多一点节约,地球就可以给我们少一点灾害,多一点恬静。
49、具调查由于药物、遗传、感染、疾病、环境噪声污染、意外事故等原因每年约新生聋儿3万余名。听力障碍严重影响着这一人群的生活、学习和社会交往。 3月3日请爱惜你的耳朵。
50、少一点排放,多一点绿色,少一点污染,多一点环保,少一点浪费,多一点节约,地球就可以给我们少一点灾害,多一点恬静。
51、一不偷二不抢三,不到处把祸闯;无噪声无污染,只是偶尔转一转;不占地不占房,马路公园随便逛;谈谈情说说爱,绿色情人节愿你开心谈恋爱。
52、一洼洼的不是稻田而是油烟。一片片的不再是树林而是污染,一丛丛的不再是小草而是渣山。一条条的不是小路而是垃圾练成串,爱护环境,刻不容缓,下一代的梦想,这一代的明天,不要因为今天留下遗憾。
53、每周少开两天车,公交轻轨乐趣多,夏天空调要慎用,排气污染要防控,减少使用传真机,电子邮件可代替,点滴生活在身边,做到低碳并不难,为了洁净大家园,从我做起每一天!
54、想要自杀只会有人劝你不要留下尸体以免污染环境。
55、地球严重超载和污染,上帝已偷偷在变脸,2012也许不是真的预言,但是人类如果不检点,2012迟早会兑现!低碳环保从点滴做起,让地球母亲永远不哭泣!
56、乌烟瘴气的蓝天,河水里污染泛滥。究竟是什么样的污染源,污染了我们美好的明天。为了地球母亲的笑颜,为了子孙还有美好的世间。让我们实行低碳生活,让幸福永绵绵。
57、用绿色交通工具,节能减排,用环保购物袋,减少污染,不用一次性餐具,低碳环保,世界环境日,愿从身边的小事做起,一点一滴的贡献,也能创建美好明天!
58、每周少开两天车,公交轻轨乐趣多,夏天空调要慎用,排气污染要防控,减少使用传真机,电子邮件可代替,点滴生活在身边,做到低碳并不难,为了洁净大家园,从我做起每一天!
59、我一向喜欢雪,喜欢没有被污染的雪!在茫茫的白色里,关乎心灵,关乎情感,关乎世俗,关乎生活的所有,在这洁白面前,都逊色了!!归于自然!沉淀在白色的高洁里!
60、地球严重超载和污染,上帝已偷偷在变脸,2012也许不是真的预言,但是人类如果不检点,2012迟早会兑现!低碳环保从点滴做起,让地球母亲永远不哭泣!
篇5:工厂对环境的污染作文
全文共 804 字
+ 加入清单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。
篇6:关于城市污染的英语作文
全文共 823 字
+ 加入清单Although the government has announced many criterious, the barbarous behavior can be seen everywhere. Such as throwing litter on the streets arbiitrarily, crossing the road when the red lights on, smoking at the public place and etc.
The Expo 2010 Shanghai China is coming, it is important for us to show a beautiful and clean environment to the world. A tidy enviornment can show the civilization of the city, and leave the foriengers a good impression. Moreover, a comfortable and beautiful city can let the citizens live happier end enjoy the life.
Therefore, the measures should be taken immediately. As a lovely citizen, we should not only obey the rules ourselves but also appeal other people behave theirselves. We can add more litter bins and slogans on the streets, plant more trees and decreas the factorys let-out.
篇7:我们周围的污染中考英语作文_初中英语作文1000字
全文共 913 字
+ 加入清单Pollution around us
In recent years our life is becoming better and better. But our environment is becoming worse and worse. Its very bad for our life. Now many people have air-conditioners and cars, they produce (give off ) waste gas. More and more trees are being cut down. There are so much sand on the earth (leaving only sand ) . We often see factories pour waste into rivers or lakes. Water in the river is quite dirty. We havent enough clean water to drink in cities. Now we are in danger. Its very necessary and important to protect the environment well. I think if everyone tries his best to protect the environment, the world will become much more beautiful , and our life will be better and better .
我们周围的污染
近年来我们的生活越来越好。但是,我们的环境越来越糟。它对我们的生活很糟糕。现在很多人都有空调和汽车,他们生产的(出)废气。越来越多的树被砍伐。有那么多的沙子在地球(只留下沙)。我们经常看到工厂把废水倒入河流或湖泊。河里的水很脏。我们没有足够的干净的水的城市。现在我们有危险。这是非常必要和重要的保护好环境。我想,如果每个人都尽自己最大的努力去保护环境,世界将变得更加美丽,我们的生活会越来越好。
篇8:环境保护雅思英语作文
全文共 4402 字
+ 加入清单环境保护雅思英语作文怎么写呢?相信很多同学想知道。以下是小编为大家整理分享的环境保护雅思英语作文,欢迎阅读参考。
环境保护雅思英语作文
You should spend about 40 minutes on this task.Write about the following topic:
The earth is being filled with waste material such as plastic bags and other rubbish. Is this really happening? What are some solutions to this problem?
Gives reasons for your answer and include any relevant examples from your own knowledge or experience.Write at least 250 words.
model answer:
Over the past few decades, the increasing amount of industrial wastes and household garbage has become a major problem in many countries. People have questioned what caused this problem and what can be done to improve the situation. In my opinion, two of the most critical causes of this waste material problem are the increased consumption and a shortage of space for landfill.
To begin with, modern lifestyle has contributed greatly to the increasing amount of waste and garbage we produce everyday. In other words, we have turned into a materialistic and mass-consumption society where we use more and throw away more than ever before. Moreover, countries are running out of space to store garbage and waste material. In fact, securing land for waste disposal raises controversies in many countries.
To solve this intractable problem, every citizen needs to participate in producing less garbage. For example, we can bring our own personal shopping bags instead of using plastic bags provided by stores and shops. Besides, the government can enforce stricter laws on companies to use biodegradable packaging or use recycled material. Indeed, this alone can eliminate much of the waste which is sent to at land fills. Companies can also contribute by developing new raw material which is recyclable and will ultimately lead to less garbage. One good example of this is that tire companies develop new tires for cars which are not made of rubber but of new biodegradable material.
As discussed above, individuals, business and the government can share the responsibility to reduce the amount of waste material and to save the earth. I hope that in the future our offspring will be better off with the well-preserved environment.
环境保护雅思英语作文
Environmental hazards are often too great for particular countries or individuals to tackle. We have arrived at a point in time where the only way to lessen environmental problems is at an international level.
Environmental problems have reached such proportions that people feel international organizations must be set up to intervene in world affairs to resolve these problems. Whether this will resolve the problem is very unlikely as international organizations are just an extension of human behavior. That is, if human conflicts cannot be resolved at home, then they are unlikely to be resolved at the international level. Nevertheless, international organizations do attract attention to the growing problem of aims of the international community to resolve the issue of environmental pollution and support their cause, I do not believe it is the best or only way to protect the environment; in fact, it is only a small part of what is needed in a global initiative.
All world problems, whether it is environmental pollution, war, energy insufficiency, or famine, arise from the abusive behavior of all individuals. Therefore, the solution to all these problems is the need for a collective consciousness. What is meant by this is that each individual must be aware of the impact he or she has on the world and their unique part to play in this world. After all, if one is happy with his life, he will surely not endeavor to harm the environment or anyone else. His behavior will be that of a responsible individual.
What is needed, therefore, is education. Education is the key to all problems and it starts from pregnancy all the way to adulthood and beyond. Furthermore, education means that children all over the world should be allowed to go to schools with good teachers and where teaching materials and methods can be adapted to each individual. Education means raising children to be responsible individuals.
This may sound like utopia, but it is not: if a country had important problems in its educational system, then it should realize that it is contributing to the worlds problems. These are perhaps long term solutions, but they are more realistic solutions than setting up yet another international organization.
篇9:汽车尾气污染环境作文
全文共 1167 字
+ 加入清单为了我的新装置能早些给人类带来福音,从现在起,我要更加勤奋学习,学习更多的科学知识,掌握足够的本领,实现更多的梦想。以下内容是小编为您精心整理的汽车尾气污染环境作文,欢迎参考!
汽车尾气污染环境作文一
我是一名农村小学四年级的学生,经常生活在农村里的我,对省城——西安的模样一无所知。在春节里,爸爸、妈妈决定把我带到西安去游玩。正月初六那天,我们一家人兴高采烈的出门了。初春的阳光照在我们身上感觉格外舒服。到了西安城,我看见在车水马龙的城市里,一股股浅蓝色的烟气从一辆辆机动车尾部喷出,呛得我睁不开眼睛,甚至感觉有点头昏。爸爸说:“这就是我们所说的机动车尾气,它的颜色怪异,而且气味令人头昏、恶心,神不知鬼不觉地影响人的身体健康。”妈妈又接着说:“汽车作为陆地上最主要的交通工具,它已经成为现代社会文明的标志。但汽车所排放的尾气已对大自然和人类造成及其严重的危害。”听了他们的话,我心里沉甸甸的,作为一名小学生,长大后能不能变废气为宝呢?
回到家后,我开始思索着。我在家里纸上画一画,结合我们日常的生活用品,我想研制一种新汽车,安装汽车尾气能量回收利用的空调装置,不但回收利用了汽车尾气的能量,还节省了能源,同时使汽车有空调器制冷的效果,降低汽车空调的生产成本,这种汽车尾气利用装置可安装在汽车轮子不同位置。
新装置安装在汽车排气管上,利用尾气与空气间温差导致的热效应,形成电能,我们可以利用尾气来发电,通过电动机驱动汽车。多余的电能,可以接到在家里,就可以节约燃料,减少用电量,真的是一举多得呢。也可以安装尾气净化装置,把有毒的尾气转换成氧气,也可以根据个人的爱好转换成各种各样的香气。
为了我的新装置能早些给人类带来福音,从现在起,我要更加勤奋学习,学习更多的科学知识,掌握足够的本领,实现更多的梦想。
汽车尾气污染环境作文二
每年有越来越多的汽车在新车的人数以百万计的生产道路。出六个一工程美国人制造汽车,驾驶卡车,修建道路或填补气体。美国人不能没有车!
大多数美国人将很难想象没有汽车的生活。然而,一些已经认识到空气污染严重的问题,汽车造成的。污浊的空气变成有毒的和危险的健康。
一个办法让污浊的空气,就是自己做,无污染的汽车。但要建设一个清洁汽车谈何容易。在这一领域的进展非常缓慢。
另一种方法是别的东西取代汽车发动机。发明者现正蒸汽汽车以及电动汽车。许多厂商认为,这将需要几年发展为我们实践模式。
为了防止世界被污染的汽车,我们要在我们的生活有所改变。例如,美国,不得不削减对它们的总人数下降cars.They鼓励使用自行车,这被认为有助于保持空气清洁。
但是,这一变化来之不易。阿大批工人可能会发现自己没有工作,如果汽车厂cioses了。因此,空气污染问题将变得并不重要,重要的失业问题。虽然汽车已使我们更好的生活,他们也给我们带来了新的问题。
篇10:保护环境的英语作文
全文共 736 字
+ 加入清单Protect Environment
Today there is more and more pollution and the environment is becoming worse and worse. So we have to know how to protect the environment. Here are some ways.
First, we can stop driving our personal cars. We can go to school or work on foot or by bus. Not only can it protect environment, but also it is good for our health.
Second, we are not supposed to drop litter anywhere, we should put them into the trash bin. And it’s best to pick up the litter on the ground when we see them.
Third, we should save the paper, the water, the food and so on.
Fourth, we should protect the trees and we should plant more trees.
I think if everyone does something to protect the environment, our world will be much better.
篇11:保护环境,治理污染
全文共 1030 字
+ 加入清单近年来,大气污染非常严重,雾霾几乎每天都笼罩着天空,不仅给我们的交通安全带来隐患,而且威胁着人们的身心健康。如何改变这种恶劣的环境,净化城市空气已成为当下人们关注的热门话题。日前,《唐山市重度污染天气预警应急响应预案(暂行)》和《唐山市2013--2017年大气污染防止攻坚战行动实施方案》相聚出台,这项举措足以证实各级政府对环境治理的决心和信念。对此。人们不禁拍手称道。
众所周知,造成大气污染的来源诸多,主要来源有三类:其一是生产性污染,这是大气污染的,例如,燃料的燃烧,主要是煤和石油燃烧过程中排放的大量有害物质,如烧煤可排出烟尘和二氧化硫;烧石油可排出二氧化硫和一氧化碳等;另外,生产过程排出的烟尘和废气,以火力发电厂、钢铁厂、石油化工厂、水泥厂等对大气污染最为严重,还有就是农业生产过程中喷洒农药而产生的粉尘和雾滴。 其二是生活性污染,由生活炉灶和采暖锅炉耗用煤炭产生的烟尘、二氧化硫等有害气体。 其三是交通运输性污染,汽车、火车、轮船和飞机等排出的尾气,其中汽车排出有害尾气距呼吸带最近,而能被人直接吸入,其污染物主要是氮氧化物、碳氢化合物、一氧化碳和铅尘等。环境污染是个老生常谈的问题了,之所以越来越严重,一是污染企业的管理者利益驱使金钱作祟,二是政府部门的打击治理的力度不够。这次治理大气污染各级政府重拳出击,人们称赞之余更是拭目以待。治理生产性污染,政府及相关部门要严格治理,对于超标排放的企业坚决取缔,切不可像“治理大型货车超载交了罚款就放行”,而一罚了之,而且要长效监督,杜绝反弹。
诚然,取缔生产性污染企业,作为普通百姓,你我都是“心有余而力不足”。但是,治理大气污染我们也不能完全依赖政府,一些来自生活性的污染,你我都有责任和义务承担。其实,早几年我们就一直在倡导低碳生活,绿色出行,可遗憾的现实生活中有多少人真正付诸行动?。君不见,都晓得机动车排放尾气污染大气,宁可每天抱怨道路堵停车难,也不愿少开一天车;都知道烧烤食品即污染空气又伤害身体.可那一家露天烧烤不是顾客满盈;明知道生产装饰材料会造成大气污染,损害健康,却有多少人在“豪华”的装修;如此这般,是否在做自己害自己“傻事”。如果你我少开一天车,少用一度电或少用一吨水,这些细小的行为看起来微不足道,但是,倘若每个人都能自觉的杜绝铺张浪费,养成勤俭节约的生活习惯,相关企业就会减少产量,就会间接的较少污染。唯有政府的治理和你我的参与,我们的生存环境一定有所改善,天空才会越来越蓝。
篇12:保护环境的英语作文
全文共 1530 字
+ 加入清单Looking ahead, and some are just a bump on the ground, large tracts of forest were cut down, into peoples lives in the wood products. It is only for their own interests, many animal it to become destitute and homeless. This is not a false illusion, this is the bloody facts.
Once upon a time, a large number of animals and plants in the world were destroyed, and many animals and plants are on the verge of extinction, which is why? This is because the man casually trees, destroy the ecological environment, this is the fundamental reason.
Land resource is one of the three major geological resources (mineral resources, water resources, land resources), is the most basic human production activities and labor objects. Human utilization of land reflects the development of human civilization, but also caused the direct destruction of land resources, which is mainly manifested as unreasonable cultivation caused by soil erosion, land desertification, land salinization of soil and soil pollution and so on, and the soil and water loss is particularly serious, today the world is facing a serious crisis. According to estimates, soil loss of the cultivated land is about 230 tons / year.
Some people think acid rain is a silent crisis, and in the history of the impact our most serious threat to the environment, is a look at the enemy. This is not alarmist. With the increase in industrialization and energy consumption, acid emissions are also increasing, they enter the air, after a series of role in the formation of acid rain.
篇13:保护环境英语作文初中
全文共 1550 字
+ 加入清单"Green" the eternal topic, let us better to understand the importance of
environmental protection.
Green environmental protection is to make us live a happy life in a clean
environment, however, the environment around us in a worse if we dont alarm,
then, our motherland will be a mess in our hands! Green environmental protection
starts from me. My dad used to drive his car to work, listen to my advice, to
protect the environment, he ride a bike from now on, he thought that not only
the exercise of his body, also for the green environmental protection.
My mother began to contribute to the green environmental protection. Before
she went to vegetable market to buy food, she used plastic bags, a village green
environmental protection propaganda on TV, she understood the green
environmental protection is sustainable, in order to we can have a better
environment. In order to we live healthier lives, so mom from that moment on,
every day go to vegetable market with the own basket, instead of plastic
bags.
As a new era of junior middle school students, and I will response to the
green environmental protection call for, I had at school are all use one off
chopsticks, but now I can bring their own chopsticks to school. I think, though
this is a small matter, but I do my responsibility.
Happiness of life to let China land everyone be permeated with happy smile,
rich products, long history, noble quality, the plot environment. Nowadays, the
environment is polluted, the green environmental protection starts from me, let
us together to protect the environment!
篇14:环境的污染
全文共 254 字
+ 加入清单这里有几片茂密的森林,森林之间有一条清澈的小河,就就像一条蓝色的绸带。
可是,渐渐地周围的森林被砍伐的所剩无几了,小河中原来清澈的河水也不见了踪影,却变成了臭气熏天的臭水沟。这都因为人类无情的破坏!小燕子对小鱼说:“人类太可恶了,不仅把地球母亲弄得千疮百孔,还把我们赖以生存的家园给破坏了!“小鱼说道:是呀,因为人类,现在的水质变得越来越差了,我简直活不下去了。还因为人类工厂的废气排放,让我再也看不到湛蓝的天空了!”
当我看到了这个情景,我攥紧拳头,心里又伤心又愤怒,我想:那些人们有良心吗?请你们珍惜地球吧!
篇15:保护环境的英语作文
全文共 2615 字
+ 加入清单Environmental protection, the subject, is a household name, everyone knows. But in real life, some people still dont too seriously, think small, in my opinion, environmental protection should start from the pretty little things. I have experienced such two things: one day, I go to the supermarket to buy things, quickly to the door of the supermarket, see several send out flyers, see to, see cars, but some people dont, casually throw on the ground, I used the paper in the trash. Saw the two men, the propaganda time with glue on the wall, from a distance, like pieces of "psoriasis" while they do not pay attention to, and I took out my skills "tearing work", ha ha, I get rid of a large "psoriasis" is. At another time, I play in the bottom of a floor, find the distance on the grass up whereas white smoke, a closer look, it turns out that there is a group of children in our class burning grass, grass black a large, I hurriedly stop as a big brother, and about the dangers of fire and the importance of environmental protection. They are ashamed, quickly the coming water from the nearby end extinguish fire, finished burning grass action.
We human beings are living on a planet, that is the earth. On earth, have for the oxygen we breathe, there are dense forests, vast grasslands, boundless sea, all kinds of animals, constitute the beauty of nature.
I think loudly called on the people: the earth belongs to our human, belongs to all of us, as long as with our hands, starts from me, starts from everyone, protect the environment, the love of the earths natural resources, make clear pond water still flowed in the home, flowers in full bloom the flowers still.
Human ah, should be time to wake up, open your eyes and look around us, this is our home, let us from now on, wash his with their own hands, with their own wisdom, with their own conscience, for our children and grandchildren keep a harmonious and beautiful homeland, let us make an efforts to us from generation to generation for survival!
环境保护,这个话题,可以说是家喻户晓,人人皆知。但在现实生活中,一些人还是不太重视,认为微不足道,在我看来,环保要从件件小事做起。我就经历过这样两件小事:有一天,我去超市买东西,快到超市门口时,看见有几个散发宣传单的,见人就给,见车就放,可是有些人却不要,随手就扔地上,我过去将纸扔进垃圾箱里。又看见两个人用胶水将宣传单贴在墙上,远远望去,活像一块块“牛皮癣”趁他们不注意,我又拿出我的绝活“撕纸功”,哈哈,“牛皮癣”被我除掉了一大片。还有一次,我在楼底玩,发现远处草地上冒出了缕缕白烟,走近一看,原来,是我们班一群小孩在那里点火烧草,草黑了一大片,我以大哥哥的身份连忙制止,并讲了火灾的危险性和环保的重要性。他们羞愧难当,赶忙从附近端来水把火熄灭,结束了烧草行动。
我们人类都生活在一个星球上,那就是地球。地球上,有供我们呼吸的氧气,还有茂密的森林、辽阔的草原、无边无际的海洋、各种各样的动物,构成了美丽的大自然。
我想大声呼吁人们:地球属于我们人类,属于我们大家,只要用我们的双手,从我做起,从人人做起,保护环境,爱护地球上的自然资源,让清澈的塘水依旧流淌在家乡,让花儿依旧那样鲜花盛开。
人类啊,是应该觉醒的时候了,睁开眼,看看我们的周围,这是我们的家园啊,让我们从此金盆洗手,用自己的双手,用自己的智慧,用自己的良心,为我们的子子孙孙留下一个和谐、美丽的家园吧,让我们为我们世世代代的绵延生存做出一份努力吧!
篇16:保护环境英语
全文共 1101 字
+ 加入清单Cars and Air Pollution
Too many cars have created a lot of serious problems in our world. Besides congestion, accidents and fast fuel consumption, cars are responsible for a good part of air pollution in big cities. All the time, they are pumping huge amounts of waste gases into the atmosphere. These gases are very harmful, causing disease and even death.
One possible solution is to design and develop clean cars and clean fuels. In Shanghai, some of the public buses begin to run on natural gas, which does not give off as much carbon dioxide as the petrol. But it may take decades for the new models of clean cars completely replace the traditional ones. Another solution is to develop modern public transportation systems and restrict the use of private cars. If the price of petrol rises constantly and the public vehicles are efficient and convenient enough, most people will not buy private cars. And the total number of cars in big cities will reduce greatly.
On the whole, the elimination of air pollution needs the collective efforts from the government, the public and the environmentalists.
篇17:2024中考英语作文预测:环境保护
全文共 2154 字
+ 加入清单Environmental protection is a big project, but we can start from around things, do a lot of things to protect the environment.
Our paper every day, do you know the paper is how to? Is made of trees to make paper. Every year around the world to cut down many trees to make paper. I have seen a special TV, save 1500 sheets of paper, you can leave a big tree. The tree is our good friend, it can turn carbon dioxide into oxygen, can reduce the noise, can block the sand, can prevent water loss and soil erosion... Starts from me, saving every piece of paper, children all over the world can save a lot of a lot of paper, you can retain a lot of trees, you can leave a big forest, desert, less and less, more and more pure and fresh air, green more and more. How I wish my hometown mountain more green, and blue, the water environment of our lives forever charactizing a fine spring day.
We used in battery life; it contains lead, if throw it carelessly, section 1 waste batteries can lose one square metre of soil utilization value forever. In many countries, many areas have carried out recycling of waste batteries. In Germany, to buy a new battery, used batteries must be pay back. So, we should to find a "home" for waste batteries. I hope we panzhihua environmental protection departments also set up waste battery recycling. Thoroughly protect the soil so that it can always grow crops.
Save a piece of paper, recycling waste battery section... Although we do is small, but it made great contribution for environmental protection. I hope my classmates from now on, all to do an environmental small guards. There is only one earth, we have to take care of it.
环保是一个很大的工程,但我们可以从身边的小事做起,为保护环境做很多事。
我们每天都要用纸,你知道纸张是怎么来的吗?是用大树来造纸的。全世界每年都要砍掉很多树来造纸。我看过一个专题电视,节约1500张纸,就可以保留一棵大树。大树是我们的好朋友,它可以把二氧化碳变为氧气,可以降低噪音,可以挡住风沙,可以防止水土流失……从我做起,节约每一张纸,全世界的小朋友可以节约很多很多纸,就可以保留很多很多大树,就可以留下一片大森林,沙漠越来越少,空气越来越清新,绿色越来越多。我多希望我的家乡山更青、水更绿,我们生活的环境永远鸟语花香。
我们生活中用到的电池,它含有铅,如果把它随手乱扔,1节废电池可以使一平方米的土壤失去永远的利用价值。很多国家、很多地区都开展了废电池的回收。在德国,购买新电池的时候,必须将废旧电池交回来。所以,我们应该给给废电池找个“家”。我希望我们攀枝花的环保部门也设立废旧电池回收站。好好的保护土壤,让它可以永远长出庄稼。
节约一张纸、回收一节废旧电池……我们做的虽然是小事,但却为环保做了大贡献。我希望我的同学们从现在开始,都来做一个环保小卫士。地球只有一个,我们都要好好爱护它。
篇18:保护环境英语作文
全文共 1568 字
+ 加入清单"Green" the eternal topic, let us better to understand the importance of environmental protection.
Green environmental protection is to make us live a happy life in a clean environment, however, the environment around us in a worse if we dont alarm, then, our motherland will be a mess in our hands! Green environmental protection starts from me. My dad used to drive his car to work, listen to my advice, to protect the environment, he ride a bike from now on, he thought that not only the exercise of his body, also for the green environmental protection.
My mother began to contribute to the green environmental protection. Before she went to vegetable market to buy food, she used plastic bags, a village green environmental protection propaganda on TV, she understood the green environmental protection is sustainable, in order to we can have a better environment. In order to we live healthier lives, so mom from that moment on, every day go to vegetable market with the own basket, instead of plastic bags.
As a new era of junior middle school students, and I will response to the green environmental protection call for, I had at school are all use one-off chopsticks, but now I can bring their own chopsticks to school. I think, though this is a small matter, but I do my responsibility.
Happiness of life to let China land everyone be permeated with happy smile, rich products, long history, noble quality, the plot environment. Nowadays, the environment is polluted, the green environmental protection starts from me, let us together to protect the environment!
篇19:环境污染作文500字
全文共 561 字
+ 加入清单“保护环境,人人有责。”不少的垃圾桶上都有这样一句话。电视和广播等媒体也都倡议要保护环境。可总有些人把这些拒绝在外,还一如既往地随地扔垃圾。有的人也许曾经看到过:一条有很多垃圾桶的马路上,还是有被风吹起的塑料袋。
我见到过一个人,边骑车边吃早饭。早饭吃完,随手一扔,塑料袋就象鸽子一样飞了出去。还有小学生:她吃好桔子,佯装把橘子皮放进口袋,却不小心掉到地上,其实她是故意的。她放进口袋之际,用手拨到了地上,假装不知道它掉了出来。这样扔垃圾的事还不少,真想不出这样能得到什么好处。
世界上有不少地区已经被“白色污染”所笼罩。白色污染其实就是白色塑料袋不腐烂,而长期不去收集,所以塑料袋越积越多形成的污染。外国是靠燃烧塑料袋来发电,而我国是将它埋在地里,对沼气进行影响。所以塑料袋并不是一无是处,但是需要统一管理,使我国不被白色污染包围。
外国曾经有一只海鸥,从高空一下子坠落沙滩。一些关于保护动物的部分人员把海鸥肚子打开,发现海鸥肚子里全是瓶盖.塑料。因为水域被影响,无鱼可吃,就只好吃瓶盖了。看过污染带来的灾害,有些人会认为,没有殃及人,还是可以继续的。千万不要这样想。有些人还在大量毁坏森林,砍伐树木。有本书上写过:要是世界上没有了一草一木,人类只能再活五百天。
因为这样,所以我们要保护环境,拒绝污染。让世界成为环保的大家族!
篇20:环境污染原因环境污染的根源
全文共 2362 字
+ 加入清单在十年前的中国,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。