霾是什么时候新兴的词

雾霾，是雾和霾的组合词。雾霾常见于城市。中国不少地区将雾并入霾一起作为灾害性天气现象进行预警预报，统称为“雾霾天气”。

雾霾是特定气候条件与人类活动相互作用的结果。高密度人口的经济及社会活动必然会排放大量细颗粒物（PM 2.5），一旦排放超过大气循环能力和承载度，细颗粒物浓度将持续积聚，此时如果受静稳天气等影响，极易出现大范围的雾霾。

2013年，“雾霾”成为年度关键词。这一年的1月，4次雾霾过程笼罩30个省（区、市），在北京，仅有5天不是雾霾天。有报告显示，中国最大的500个城市中，只有不到1%的城市达到世界卫生组织推荐的空气质量标准，与此同时，世界上污染最严重的10个城市有7个在中国。

写雾霾的英语作文

smog是指空气污染做成的视野朦胧，算上是半专业的用语

fog and haze 则是指 水雾和尘雾的混合，大多是天然形成的

看阁下essay是写哪个主题吧!

写空气污染有关的用smog

气象学、地理的用fog/haze

源:维.基.百.科.

写雾霾的英语作文

　冬天，北方的雾霾频繁爆发。北京等多地多次PM2.5浓度?爆表?。人们出门都带上了口罩，空气净化器也成为了现时段的热销品?以?雾霾?为题怎么写一篇作文?下面是我整理的关于雾霾的英语作文，希望能帮到大家!

　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 lot. On the road people drove slowly because they could not see clearly. People also suffered from many illnesses caused by smog.

　The smog in Beijing has been caused by many factors, in which the increase of cars in the city area plays an important role. The carssend off a lot of poisonous gases, which in turn adds to the already seriousair pollution.

　In my opinion, the number of cars should be limited.We should call on the people to use more public transport. Only in this way canwe expect to have more sunny days.

　Recently,haze weather has become a daily one right here in large part of China.People are forced to wear the mask to avoid breathing poisonous air.So it is necessary to find out the reason why leads to that and work out the resolution.If we trace the cause for haze weather ,the main points are as follows .

　First,china 's air quality standards are rather lax and evaluation factors are limited,so you will see that current air appraisal system has defects.Second,some people just go for economic interests instead of turning out products according to relevant law and regulations.They tend to use obsolete equipment in which they are high likely to emit a great deal of wasted air.Third,across our society ,relevant protection awareness has not built up so that people havent formed a habit of using green product and saving energy as much as possible. Just for the sake of convience to go out,people rely more and more on travelling and working by car while car is the main cause for the haze weather.

　To settle this problem,a series of meaures should be taken as follows.First of all ,we should strengthen air monitor to lower the levels of small particulate pollutants.What's more,we should enact more strict laws and regulations and keep perfecting our current law on environmental protection to regulate people 's daily action and the industrial production and punish those factories that ignore the protection and keep emitting dangerous material that cause haze.Last but not least,we should develop green and energy-saving energy to lower the emission of haze and improve air quality.

　As far as I am concerned ,if we work together to be able to do such measures ,our environment will getting better and better and haze weather will vanish completely.

　1、雾霾相关词汇

　①haze和smog。《新牛津英语词典》给haze和smog提供的释义分别为?a slight obscuration of the lower atmosphere, typically caused by fine suspended particles?和?fog or haze intensified by smoke or other atmospheric pollutants?。haze是由细小的悬浮颗粒引起的`，而smog是指受烟或其他大气污染物影响的雾或霾。所以我们有时可以把smog当作是haze的一种。haze表示雾霾更为合理。

　②AQI，air quality index。空气质量指数。

　③PM2.5，particulate matter。大气中直径小于或等于2.5微米的颗粒物，可直接进入人体的肺泡。

　④burning of fossil fuels in vehicles。机动车燃油。

　⑤power plants。发电厂。

　⑥various industrial processes。各类工业生产。

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