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空气被污染前的演讲稿篇1
尊敬的各位领导、老师、同学们:
大家好!
未来的空气净化器空气净化器,或许每个人都知道是什么东西,有些人的家里也放有空气净化器,可是我要说的空气净化器可不是家里的那种,我要说的空气净化器,功能可大啦。现在人们都被空气污染折磨的痛苦不堪,汽车产生的废气、森林火灾的烟雾、烟尘……都能污染空气,对我们人类的身体健康带来危害。而我的空气净化器这时就能产生大作用,它不像家里的那种空气净化器,只能吸收室内的二氧化碳,只要在空气污染严重的地方,比如:马路、工厂……安装一个空气净化器,然后在每个人的衣服、发卡、甚至鞋子上安装一个迷你的二氧化碳传送器,等人们到了某处空气污染指数到了超标的地方,迷你的二氧化碳传送器就会把周围的二氧化碳传到空气净化器,这时,空气净化器就会把二氧化碳变成新鲜氧气。让人们如同沐浴在森林里,享受着森林裕说到着,恐怕爱美的人会担心迷你的二氧化碳传送器会影响了你的衣着美观了吧?这大可不必担心,因为我的二氧化碳传送器比蚂蚁还要小上一千倍一万倍,用肉眼根本看不到。而空气净化器的大小也只有盒子那么大,不会碍事。如果真在未来的某一天,我的空气净化器真的发明了出来。那么,北京可能再也不会出现雾霾,人们也不会为空气污染而感到苦恼,每天都呼吸着健康的`空气。啊!这一切会是多么的美好啊!
空气被污染前的演讲稿篇2
敬爱的老师、同学们:
未来的空气净化器空气净化器,或许每个人都知道是什么东西,有些人的家里也放有空气净化器,可是我要说的空气净化器可不是家里的那种,我要说的空气净化器,功能可大啦。现在人们都被空气污染折磨的痛苦不堪,汽车产生的废气、森林火灾的烟雾、烟尘。都能污染空气,对我们人类的身体健康带来危害。而我的空气净化器这时就能产生大作用,它不像家里的那种空气净化器,只能吸收室内的二氧化碳,只要在空气污染严重的地方,比如:马路、工厂。安装一个空气净化器,然后在每个人的衣服、发卡、甚至鞋子上安装一个迷你的二氧化碳传送器,等人们到了某处空气污染指数到了超标的地方,迷你的二氧化碳传送器就会把周围的二氧化碳传到空气净化器,这时,空气净化器就会把二氧化碳变成新鲜氧气。
让人们如同沐浴在森林里,享受着森林裕说到着,恐怕爱美的人会担心迷你的二氧化碳传送器会影响了你的衣着美观了吧?这大可不必担心,因为我的二氧化碳传送器比蚂蚁还要小上一千倍一万倍,用肉眼根本看不到。而空气净化器的大小也只有盒子那么大,不会碍事。如果真在未来的某一天,我的空气净化器真的发明了出来。那么,北京可能再也不会出现雾霾,人们也不会为空气污染而感到苦恼,每天都呼吸着健康的空气。啊!这一切会是多么的美好啊!
空气被污染前的演讲稿篇3
尊敬的老师们,亲爱的同学们:
大家好!
现在,我们的环境污染越来越严重了,比如:汽车尾气的排放,工业生产产生的废气、废液,人类生活造成的垃圾也是污染环境的重要因素、我们应该引起重视,随着人类活动的频繁,空气污染不断增多,这些问题导致生活了生活的农作物,降低了农作物的产量,空气污染使人类的生活和身体健康受到不良的影响,使环境越来越差,使我们最后都无法生存,而且还导致一些自然灾害的发生、
正因如此,我们应该要尽自己的努力,保护环境,保护地球,保护我们的家园、我们应从自己做起,从我做起,我们应做到不乱扔垃圾、增强环保意识,向有关部门反应污染环境的主要因素,应加强意识,向破坏环境的行为作斗争、进食时,应少用并不用一次性筷子、纸杯等,保护森林,爱护小草,坚持绿化环境,禁止破坏和污染环境,要号召身边的同学一起为我们的家园做清洁工,为我们的家园装饰,不让家园受到一点伤害,这是作为“地球之一滴”的责任、义务、
我们应该美化我们的家园,应号召全球人民植树造林,减少土地荒漠化,退耕还湖,禁止水土流失,减少汽车尾气排放,促使人民步行上班,老板修改作息时间,对工业生产产生的废液废气进行处理,安装自动处理器、
为减少酸雨对人们的灾害作前提保护,也可减少二氧化碳产生过多导致的温室效应,在生产中造成污染环境的因素最为严重、因为生产中利用了大量的化石燃料的燃烧,对环境的影响,燃烧进燃料中碳转变为二氧化碳进入空气中,在一定条件下形成酸雨,对全球的危害,从而提高周围环境的温度,产生污染、
谢谢大家!
空气被污染前的演讲稿篇4
老师们、同学们:
大家上午好!
今天我演讲的内容是——雾霾天气知多少。
不知道大家还记不记得,有时候我们来学校时,路上到处都是雾蒙蒙的一片,看不清楚附近的人和景物?那样的天气被称为“雾霾天气”。
雾霾是一种自然现象,是雾和霾的组合词,也称为灰霾。是由于大量极细微的干尘粒等均匀地浮游在空中所造成的,使空气普遍有混浊现象,水平能见度小于10千米。目前,在我国存在着4个雾霾严重地区:黄淮海地区、长江河谷、四川盆地和珠江三角洲。
随着空气质量的恶化,雾霾天气现象出现增多,能见度小于10公里的就属于雾霾现象,5~8公里属于中度雾霾现象,3~5公里属于重度雾霾现象,小于3公里则是严重的雾霾现象,危害加重。
雾霾天气对于人的身体健康有着巨大的危害,是心脏杀手,是造成心血管疾病的重要原因,还容易引发鼻炎、支气管炎等常见的呼吸道系统疾病,比香烟更易致癌。
那么,在雾霾天气,我们小学生需要注意些什么呢?
1、喜欢晨练的人应该尽量避免户外活动,否则,越是运动,吸入肺部的毒物越多,无形中成了毒雾的吸尘器。
2、如果出行,最好要戴上口罩、纱巾。
3、这个时候也应少开窗,因为室内的空气比室外干净。
4、一般雾霾天气昼夜温差会加大,应及时增添衣服,注意保暖。
5、外出回来后应该及时洗脸、漱口、清理鼻腔,可以将附着在身体上的霾及时清理掉。
6、多喝水,多吃新鲜、富含维生素的水果,防止水分的丢失。
7、一旦发现身体不适,应立即到医院就诊。
同学们,老师们,让我们共同努力,拥有一个健康的身体吧!
谢谢大家!
空气被污染前的演讲稿篇5
teachers students:
hello everybody
today i lecture on the topic of air pollution. air pollution is a new branch of atmospheric science it is to study in different weather conditions into the atmosphere of the pollutants in the atmosphere transmission dilute diffusion transformation and remove the rule and application of science. this subject originated from the 20xx s 20 years british atmospheric diffusion experiment was carried out but only in the '50 s the development of modern industry and city population is highly concentrated there appeared the serious urban or industrial pollution events in december 20 's london smog event for example took the lives of more than four thousand people these make people wide attention and research of atmospheric pollution to the 60 s then gradually formed this new independent discipline.
air pollution due to human activity or natural process and out into the atmosphere into some harmful substances (pollutants) when the amount of discharged into enough (pollutant concentration up to a limit) makes the original clean air quality to drop if this situation is maintained long enough will be to humans animals plants and the atmosphere cause harm and adverse effects of the atmospheric state known as air pollution. of air pollution has three elements: the concentration of pollution sources and pollutants harm to human and biological.
clean the atmosphere is one of the necessary conditions for the survival of humans in one person in five weeks no eating or five days without drinking water to be able to sustain life but not breathing air for more than 5 minutes then die the body to absorb every day 10-12 cubic meter of air. thus eliminating air pollution or keep pollution concentration falls below a certain limit is how important.
pollution sources and pollutants discharged into the source of harmful substances into the atmosphere pollution sources harmful substances into the atmosphere pollutants. atmospheric pollution source points of artificial and natural sources
the harm of air pollution and influence
atmospheric pollution on human and environment caused by the harm and influence has gradually been recognized in the aggregate has the following several aspects:
(1) the harm to human health. human suffering has three pollute the air surface skin contact with the air inhaled and eating food containing atmospheric pollutants besides can cause respiratory and lung diseases but also on the cardiovascular system liver etc serious can take away the life.
(2) the harm of biological. animals because of the inhaled air pollution or eat foods containing contaminants and disease or death atmospheric pollutants can make the plant disease resistance drop influence the growth leaf spot wither or die.
(3) the harm of items. such as the textile clothing leather metal products construction materials culture art etc. chemical damage and defiled damage.
(4) cause acidic precipitation such as agriculture forestry fresh water aquaculture.
(5) destroys the high-altitude ozone layer ozone hole formation cause harm to human and biological survival environment.
6. impact on the global climate such as the increase in carbon dioxide and other greenhouse gases will cause the earth's atmosphere warms lead to increased global weather disasters and aerosol particles such as smoke increase the atmospheric turbidity solar radiation affect the longwave radiation the earth may lead to abnormal weather climate.
how to prevention and control of atmospheric pollution reduce the harm of air pollution and influence constitute a major and urgent research subject. prevention and control of atmospheric pollution
prevention and control of atmospheric pollution is a huge system engineering need to be individual and collective national and the joint efforts of the world can consider to take measures in the following aspects:
(1) to reduce emissions. use more pollution-free energy (such as solar energy wind energy hydroelectric power) reform the energy structure with low pollution energy (such as natural gas) pretreatment of fuel (such as coal desulfurization) before such as improving combustion technology can reduce emissions. in addition before the pollutants into the atmosphere not use dust smoke abatement technology condensing technology liquid absorption technology recycling technology to eliminate some pollutants in the exhaust and can reduce the amount of pollutants into the atmosphere.
(2) to curb emissions and make full use of atmospheric self-purification ability. different meteorological conditions the capacity of the atmospheric pollutants into the same amount of pollutants the pollutant concentration was different. for wind good ventilation turbulence strong convection area and time atmospheric diffusion dilution ability is strong can accept more corporations to inversion region and time atmospheric diffusion dilution ability is weak cannot accept more pollutants otherwise it will cause serious air pollution. therefore respond to different regions different times for the effective control of emissions.
(3) site selection design of chimney urban and industrial planning should be reasonable don't emitters transition concentration repeated superposition don't cause pollution formation of local serious pollution incident.
(4) greening afforestation make more plants absorb pollutants reduce atmospheric pollution.
through the above explanation we know the importance of air for our human right from now on please protect the environment afforestation and create a better living environment!
today my speech is that under the flag of thank you.
空气被污染前的演讲稿篇6
1. power generation
siting fossil fuel power stations in mainly rural areas and distributing the pollution produced more evenly via tall chimneys has resulted in improved urban air quality though they still remain a major source of pollution mainly sulphur dioxide and nitrogen oxides.
better dispersion of pollutants emitted by tall chimneys leads to better dilution in the air and thus lower local concentrations of pollutants. this has however led to pollution being dispersed more widely and to transboundary air pollution.
2. other industry and waste disposal
although fossil fuel power plants are the major source of industrial air pollution in many countries all industry and many businesses large and small can be significant local sources of a wide range of air pollutants.
all waste has the potential to affect the environment adversely by contaminating the air soil or water. poorly managed waste disposal sites (landfill or incineration) can also pose a danger to public health through all these routes.
3. road transport
air pollution from motor vehicles has in many countries replaced coal smoke as the major cause for concern; and the continuing growth in vehicle use means that efforts to reduce emissions from individual vehicles are in danger of being overtaken by increases in the volume of traffic.
the air pollutants produced as a result of the use of motor vehicles present a two-stage problem: primary and secondary pollutants. primary pollutants produced by petrol-powered vehicles include carbon monoxide nitric oxide benzene particulate matter and lead. much of the lead emitted by vehicles burning leaded petrol emerges as particles. secondary pollutants produced as a result of the use of petrol-engined vehicles include nitrogen dioxide and ozone.
4. domestic sources
as temperatures across the region plummeted domestic burning of coal across northern china becomes the primary source of air pollution. other important domestic sources of air pollution are:
stoves and cookers produce carbon monoxide. if ventilation is inadequate or appliances poorly maintained co may accumulate in dangerous concentrations. nitrogen dioxide is also generated and concentrations in kitchens will usually exceed those outdoors when cookers are in use.
bonfires garden incinerators and barbecues can be a significant local smoke and odour nuisance. burning garden waste produces smoke especially if it is damp and smouldering rather than dry and blazing. the smoke contains co and other noxious and irritating compounds. problems may be caused for asthmatics bronchitis sufferers or those with heart conditions. even if the immediate health risk is small bonfires add to the general background level of air pollution.
5. agriculture
agricultural practices can also be a significant source of nuisance contributing both to local levels of air pollution and causing odour problems. the main sources of pollution are the burning of agricultural waste or of crops in the field and large intensive livestock units. depending on soil type and fertilisation the nitrogen in the dung and urine of grazing cattle contributes 20-40% of nitrous oxide emissions from agricultural land; methane is also emitted by cattle and other ruminants; nitrous oxide and methane are of course both greenhouse gases.
空气被污染前的演讲稿篇7
尊敬的各位领导,各位评委:
大家好!我叫xxx,是来自镇政府的一名普通干部,今天,我演讲的题目是《经济建设与美丽家园并重,资源开发与环境保护齐飞》。
挑战与机遇同在,困惑伴希望孪生。资源开发和经济建设就是这样一对孪生兄弟。自从我县发现大储备量煤炭资源,华能集团注资开发以来,怎样做好煤炭资源开发与环境保护这一重大难题就摆在了我们面前。20年我县为了提高全县环境建设水平,不断优化发展环境,持续提升的对外影响力和综合竞争力,县委、县政府将20年确定为“环境建设年”,这也是打响了我县煤炭资源开发与环境建设并重的第一枪。
呜呜汽车鸣,平地起沙尘。清明无滴雨,一年无收成。近几年,以创建全国生态示范县为契机,全县动员,全民参与,全力推进,使城乡面貌、生态人居环境明显改善,其中焦村乡、镇村、盘克乡形赤村、焦村乡被评为省级生态乡镇、生态村,焦村乡任村被国家环保部命名为国家级生态村。人在县委、县镇府的真确领导下,在全县人民的不懈努力下,终于改变了我县沙尘暴频发,水土流失严重,地域内天旱少雨等恶劣的自然环境,造就了一个个适宜人类居住的省级生态乡镇和国家级生态村,为我们的子孙后代重建了一个草木葱茏,绿树成荫,鸟语花香,空气清新的美丽家园。
现在我县面临中部与南部两大煤矿开发,这一经济建设的重大机遇,同时也面临煤炭资源开发对我县生态环境的巨大挑战。煤炭资源的开发势必对我县的空气,水质,地质等多方面造成一定影响,我国改革初期许多地方一味追求经济效益,采用粗放式开采的方法对地方环境造成了严重危害,如山西省大同市因为煤炭开采引发的大面积地表的下沉和塌陷,使区域地质与生存环境恶化;煤炭开采引发地下水的输入、输出和内部结构的变化,从而使城市水资源遭到破坏,因采煤漏水、矿井水排放等造成的经济损失达到300亿元;煤炭开采引发的矿区水土流失、土壤侵蚀、植被破坏,从而导致生态绿地的贫乏;尾矿、煤矸石、粉煤灰的。露天堆放,使山西省耕地面积减少,人地矛盾突出。等到对环境造成严重损害后才花费巨资进行环境建设和维护,然而效果却不敬人意。我县现阶段处在煤炭资源开发的初期,应该早作打算,坚持走“在保护中开发、在开发中保护”的原则,坚定不移地走生态环境保护型之路。确保我县环境建设的胜利之花,不会因为资源开发而枯萎凋谢。
倡导生态文明,建设绿色家园。就要形成从我做起、从身边事做起、从现在做起。从安康的生态环境的实际出发,就是要以人为本,立足自身,点滴做起,在日常生活中厉行节约,防止浪费,珍惜资源,植绿护绿,减少污染,保护生态环境,为我县生态环境永续生存与发展尽绵薄之力。只要全民动员起来,群策群力,积极行动,持之以恒,建设可持续发展的生态环境,就可以使我县经济建设与环境保护相辅相成,达到共赢。
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