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段話:“霧霾,顧名思義是霧和霾。我覺得這是個教訓(xùn)。種種事件都將霧霾推向風(fēng)口浪尖,人人談霾變色,報道層出不窮。[1]三、霧霾的成因(一)大氣條件大氣環(huán)流異常導(dǎo)致靜穩(wěn)天氣多靜穩(wěn)天氣是指當(dāng)大范圍近地面大氣層持續(xù)或超過24小時出現(xiàn)氣壓場較均勻、靜風(fēng)或風(fēng)速較小的天氣。降水天數(shù)的減少,說明空氣中的懸浮顆粒與大氣的凝結(jié)減少,雨水的沖刷日數(shù)也相應(yīng)的變少,空氣中懸浮的顆粒,加大了霧霾天氣的發(fā)生[3]。(2)下沉逆溫因整層空氣下沉,絕熱增溫,當(dāng)氣層下沉到某一高度時,氣層頂部的氣溫高于底部,而形成的逆溫。2015年4月24日,鄭州遇“平流霧”黑色污染帶,連續(xù)2小時重度污染就是由平流逆溫導(dǎo)致的。濟南地形中間低四周高,容易出現(xiàn)“逆溫”現(xiàn)象。我國各地大氣氣溶膠有不同的時空分布特點。人類活動產(chǎn)生的污染源排入大氣中,其中二氧化硫、碳氫化合物、氮氧化合物等一次氣溶膠通過化學(xué)反應(yīng)和氣粒轉(zhuǎn)化過程,形成硫酸鹽、硝酸鹽和氯化物等新的比較穩(wěn)定的顆粒,即二次氣溶膠。霧天日照減少。霧霾天氣時,空氣中含有多種化學(xué)腐蝕劑,容易導(dǎo)致輸電設(shè)備絕緣性能下降,出現(xiàn)斷電霧、跳閘現(xiàn)象。同樣大霧天氣壓較低,高血壓、冠心病等慢性病患者不宜做戶外鍛煉,以避免誘發(fā)心絞痛、心衰。重視居室衛(wèi)生。建議大家保持科學(xué)的生活規(guī)律,避免過度勞累,多飲水,注意飲食清淡,少食刺激性食物,多吃些豆腐、牛奶等食品。調(diào)節(jié)情緒、飲食清淡。做好個人衛(wèi)生。減少戶外鍛煉。即便是飛機,也不能在霧霾天氣下冒然起降。如霧較大,空氣水汽含量高,戶外運動時人體不容易排汗,從而出現(xiàn)血壓升高、胸悶等癥狀。由此可見,氣溶膠的增多通過影響近地面層動力和熱力場,對霧霾的發(fā)展起正反饋作用[2]。(二)人為因素大氣氣溶膠濃度高有利于形成霧霾我國大氣氣溶膠濃度在世界范圍來說處于較高水平,有利于催生霧霾天氣的形成。夜晚山坡上降溫快,冷空氣沿斜坡流入低谷和盆地,使原來的較暖的空氣受擠抬升,出現(xiàn)的溫度倒置現(xiàn)象。暖空氣下層受冷地面影響最大,氣溫降低最強烈,上層降溫緩慢,從而形成逆溫。輻射逆溫較多出現(xiàn)在冬季。在降雨的過程中,雨水能夠?qū)Υ髿庵械念w粒物質(zhì)進行沖刷,減少空氣中的懸浮顆粒。它們的存在都會影響視程。霧霾對人類健康、交通、電力和農(nóng)業(yè)都有一定的危害。如今因為霧霾天氣污染的加重,許多報紙都紛紛刊登有關(guān)霧霾的新聞,一時間,小小的霧霾受到了人們的重視,大家都開始尋找解決霧霾,自我防護的辦法。外面的一切景物都好似披上了一層輕紗,隱隱約約,若有若無的,看不清他們的真實面目。我相信那些愚蠢的人類會受到懲罰的。高等動物就是人類對自己的稱呼。現(xiàn)在的成都,霧霾天氣幾乎每天都有。關(guān)于 霧霾 的英語作文(篇3)During the 15 days from New Year’s Eve to Lantern Festival, Beijing was affected by smog for more than half the time, because of which people suffered a the road people drove slowly because they could not see also suffered from many illnesses caused by smog in Beijing has been caused by many factors, in which the increase of cars in the city area plays an important carssend off a lot of poisonous gases, which in turn adds to the already seriousair my opinion, the number of cars should be should call on the people to use more public in this way canwe expect to have more sunny 霧霾 的英語作文(篇4)Dear Bill, I’m glad to receive your letter,thank you for your caring for the weather and my I’d like to tell you something about the the winter last year,the smog has occurred a lot of has done great harm to our daily traffic accidents happened just because of the heavy smog weather,more and more people have to go to see the doctor because the serious disease caused by the smog,quite a lot of flights have to be put off,a great number of people have to stay at home for fear of the poisonous air caused by the have realized the great harm caused by the smog and the importance of protecting the all over the country are taking measures to reduce the smog government suggests people go to work or school with the public traffic, such as the bus and the we should plant more to me, I will go to school by bike or on foot, and I won’t throw the waste addition, I will tell the people I meet to protect the environment as possible as they you like to tell me some good ideas?i’m looking forward to your , Li Hua, the hazy weather frequently appears in our has not only done harm to people’s health, but also affected the public accidents happen every now and then, some highways have to be shut down because of the low , air pollution is the main factor that has resulted in the frequency of hazy the same time, smoke from burning coal and all kinds of dust are also important , exhaust emission from cars and buses has made the situation even proper measures should be adopted to deal with the serious students, opportunities for outdoor sports activities should be decreased, washing faces and hands with running water after each outing is also important, and do not forget to wear a goodquality mask to protect yourself while going hope we will regain a fresh, clean and bright world soon.第三篇:霧霾天氣的危害作文霧霾天氣的危害作文霧霾天氣的危害作文(一)每天早晨起來,我再也沒有看到那火紅的太陽來照亮大地。人為來源可以包括機動車輛、工業(yè)燃料燃燒和制造業(yè)務(wù)。其次,我們應(yīng)該制定更加嚴格的法律法規(guī),不斷完善我們現(xiàn)有的環(huán)境保護法律來規(guī)范人們的日常行為和工業(yè)生產(chǎn)和懲罰那些工廠忽視保護和保持發(fā)射危險物質(zhì)造成的陰霾。因此有必要找出原因,導(dǎo)致和解決的分辨率。我們必須采取有效的措施來阻止環(huán)境的污染。事實上,近年來,由汽車尾氣和工業(yè)污染引起的嚴重的空氣污染已經(jīng)對人們的生存