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霧霾論文(專業(yè)版)

2024-11-09 12:29上一頁面

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【正文】 (2)減少機動車的使用,或者安裝汽車尾氣處理裝置。(1)國家應(yīng)頒布強制性的法律法規(guī),加大處罰力度。使區(qū)域極端氣候事件頻繁,氣象災(zāi)害連連。使用汽油的小型車雖然排放的是地氣態(tài)污染物,比如氮氧化物等,但碰到霧天,很容易轉(zhuǎn)換成二次顆粒物,加重霧霾;其次 是北方的冬季燒煤供暖產(chǎn)生的廢氣;第三,是工業(yè)生產(chǎn)排放的廢氣。靜風(fēng)現(xiàn)象增多,不利于大氣污染物向城區(qū)外圍擴展稀釋,并容易在城區(qū)內(nèi)積累高濃度污染。由于液態(tài)水或者冰晶組成的霧散射的光與波長的關(guān)系不大,因此沒有發(fā)生明顯的折射和散射,霧會看起來是乳白色或者青色。它也能使大氣渾濁,視野模糊并導(dǎo)致能見度惡化,如果水平能見度小于10000米時,將這種非水成物組成的氣溶膠系統(tǒng)造成的視程障礙稱為霾(Haze)或灰霾(Dusthaze),香港天文臺稱煙霞(Haze)霧霾天氣:因為空氣質(zhì)量的惡化,霧霾天氣現(xiàn)象出現(xiàn)增多,危害加重。solutionsi 金陵科技學(xué)院學(xué)士學(xué)位論文 and the EmbodimentThe longest distance in the world is that I couldn’t see Chairman Mao even though I am right in front of the Tiananmen!Nowadays,“”and “Haze” have already been familiar to us, especially in Beijing and of the most popular iPad apps in Beijing at present is China Air Pollution app is both addictive and checked the numbers and discovered that the AQ level, which measures fine particulates that are especially dangerous, was 250 – about five times the level deemed in Nanjing, I experienced the that time, all the middle school students had two days off to keep away from the , we university students had classes as we are stronger than middle school students, but even they are kept indoors, it is hard to escape from the harm of , let’s talk about haze in the following definition of hazeWHO guidelines say average concentrations of the tiniest pollution particlesshould be no more than 25 microgrammes per cubic is unhealthy above 100 microgrammes and at 300, all children and elderly people should remain the deterioration of air quality, haze got worse and areas incorporated haze into the fog together as weather warning fact, there is a big difference between fog and haze in some example: fog occurs when the air is humid, while haze occurs when the air is relatively dry, the relative air humidity is usually below 60%.Its formation is due to a large number of very fine uniform floating dust particles, soot, salt, the air, causing the effective horizontal visibility less than 10KM air variation haze there is no large change in the air mass, haze lasts for a long time, sometimes over more than 10 the haze, mist, dust storms, blowing sand, dust, smoke and other weather phenomena are caused by floating in the air and a lot of very fine dust or smoke particles , in effective horizontal visibility is less than sometimes it is difficult for weather professionals to distinguish order to draw the right conclusions, weather professionals must bined the weather background, sky conditions, air humidity, odor and color satellite monitoring and other factors to make a prehensive analysis, but sometimes fog and haze can harm of haze The haze will affect not only health of people but also the economic, as well as the future of , once inhaled, the tiny particles can make people more vulnerable to respiratory infections, as well as leading to increased mortality from lung cancer and heart all know that losing a family member is how sorrowful, so haze may destroy not only a person, but 金陵科技學(xué)院學(xué)士學(xué)位論文 and the Embodiment also a , a number of foreigners won’t go to China for travelling because of haze, which will bring a loss to our , the decline of economic will in turn weaken national all, economic decides politics and this way, it will be difficult for us to make China Dream e and haze are “ killer ” for patients with cardiovascular disease, especially for those who with respiratory and cardiovascular diseases, the had better not go out, nor do morning exercises, otherwise, it may induce the disease, or a heart attack, even causing point out that the reason why fog and haze are “dangerous days” for patients with cardiovascular disease is that the air pressure is low, oxygen decreases in the air when there is haze, so it39。霧霾時對人們的健康影響也是非常大的,但往往容易被人們所忽視。第三,水平方向靜風(fēng)現(xiàn)象。2013年的河南淮河流域霧霾天氣非常嚴重,那么近階段霧霾情況又是如何 呢?圖2(~)(圖2數(shù)據(jù)來源:://)從圖3可以很明顯的發(fā)現(xiàn):近期許昌、鄭州、因此,霧霾的影響具有范圍廣、時間長、污染嚴重的特點。霧的存在使能室外見度惡化(),降低空氣透明度。人類共有一個地球,要共同維護人類生存環(huán)境。霧霾天氣時,由于空氣質(zhì)量差,能見度低,容易出現(xiàn)車輛追尾相撞,影響正常交通秩序,對大家出行造成不便,在日常行車行走時更應(yīng)該多觀察路況,以免發(fā)生危險。對人體和對環(huán)境造成非常大的影響。畢竟,隨著經(jīng)濟的發(fā)展,人們不單單只是追求吃得飽睡得暖。同時,機動車尾氣污染物也是重要的氣態(tài)污染物[17]。關(guān)鍵字:霧霾,氣溶膠粒子,熱島效應(yīng) 1前言根據(jù)氣象學(xué)上的定義[1],霾是大量極細微的干塵粒等均勻地浮游在空中,使水平能見度小于10km的空氣普遍渾濁現(xiàn)象,, 某些吸水性強的干氣溶膠粒子會吸水、長大,并最終活化成云霧的凝結(jié)核, 產(chǎn)生更多、更小的云霧滴, 使能見度進一步降低, 低于1 km 時被定義為霧,而能見度在1~10 km ,相對濕度大于90%是霧,低于90%是霾[2]。而且伴隨的其他空氣條件為晴天、無風(fēng)、或威風(fēng),北京上空盛行西北或偏西風(fēng)流[9] ,此處兩者正好存在一致性。但是真正了解的民眾其實還是比較少的。研究表明,轎車的污染是公共汽車的50倍,有軌電車的100 倍,大力發(fā)展公共交通運輸,可有效降低污染物的總排放量。除了氣象條件,工業(yè)生產(chǎn)、機動車尾氣排放、冬季取暖燒煤等導(dǎo)致的大氣中的顆粒物濃度增加,是霧霾產(chǎn)生的重要因素。除了能源利用這方面,還可以從以下幾方面去處理:人工降雨。關(guān)鍵詞:河南;淮河流域;霧霾;影響The effects on human life by the haze weather of the HuaiRiver area in HenanAbstract: In recent years, there is a very serious phenomenon of fog across our country, and many major cities in China are influenced by this bad what is the degree our Huai River in Henan influenced by this weather? What’s the harm to our life? What measures could be done about it in order to prevent this bad weather? This article mainly analyzes the causes of the formation of haze in the region through the meteorological data(such as )in recent years to the Huai River in Henan region, and find out the suitable control measures of the haze weather for Huai River area in Henan through prehensive analysis, in order to improve the weather conditions of Huai River area in : Henan。同樣,我們河南淮河流域也是如此。逆溫層是指輕暖而輕的空氣位于較冷而重的空氣上面,形成一種極其穩(wěn)定的空氣層,籠罩在近地層的上空,嚴重的阻礙著空氣的對流運動。慢性支氣管炎和哮喘病人在霧霾天長期停留,病情會加劇[5]。我們只有重視霧霾天氣引發(fā)的環(huán)境問題,研發(fā)新能源,從污染的源頭和傳播途徑中積極采取防治措施,認真分析存在不足,才能更好的治理污染環(huán)境,才能讓我們的環(huán)境更加美好。5第五篇:霧霾天氣論文(模版)大氣污染與控制論文1霧霾天氣概況近些年,隨著我國會買天氣的增多,很多地區(qū)把灰霾并入霧天氣一起作為災(zāi)害天氣,統(tǒng)稱為”霧霾天氣”。同時,在合適的層結(jié)條件和氣象條件下,顆粒污染物可成為霧的凝結(jié)核,促進霧的發(fā)展。出現(xiàn)霧時空氣相對濕度常達100%或接近100%(《根治霧霾刻不容緩》 《天津經(jīng)濟》課題組 20130。同時,青藏高原南邊暖濕空氣強度較強,從而導(dǎo)致了來自印度洋的西南暖濕氣流異常活躍,這股暖濕氣流順著西南方向?qū)⒇S富的水汽運送到我國中東地區(qū),從而引起了這些地方空氣濕度大[1]另外也促進了地層逆溫的產(chǎn)生,給霧霾天氣的出現(xiàn)提供了有利條件。從全球來看,在所有健康危險因素中排名第8。尤其是在繁華喧囂十面“霾”伏的都市中,除了隨時要應(yīng)對霧霾?!凹 蓖猓捎诮ㄖ┕?、汽車尾汽、工業(yè)燃料燃燒、燃放煙花爆燭等原因造成懸浮顆粒物多,難免會堵塞在毛孔中形成黑頭,造成毛孔阻塞、角質(zhì)堆積、肌膚起皮等肌膚問題,所以自我保護的首要措施就是深層清潔肌膚表層,清潔毛孔。加強對政府和環(huán)保執(zhí)法部門的監(jiān)督,群眾和其他機關(guān)可以將違法行為舉報或提起訴訟,將環(huán)保工作落到實處,為依法懲治破壞環(huán)境之人提供保障。我們的
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