雾霾—英语PPT
Fog and Haze 雾霾 英文ppt
201-300
> 300
Off the charts！爆表了！
9
Basic information of the Haze
Xi’an first got No.1 in the ranking of the Chinese cities!
10
Causes of hazy weather
16
Methods and solutions
What can we do to avoid this?
17
Methods and solutions
Step1: Search Air Quality Index first,reduce outdoor exercise if it’s beyond 100. Step2: Wear N95/KN90 mask while density of PM2.5 reach 150.
1. Develop and use new clean energy
清洁能源
• Reducing the use of cars，developing the public transport.
公共交通
• Increase the green area
增加绿化
4. public supervision
London 1952
Xi’an 2013
London 1952
Xi’an 2013
21
Now in China, NPC &CPPCC(National Peoples Congress人大 & Chinese Peoples Political Consultative Conference 政协) determine to solve the haze in 10 years.
雾霾英语PPT
Pollution control of sulfur oxides
yellowish gray
<80%
1km-10km
Haze do we more harm than fogfog for and its contains How do distinguish with haze? PM2.5
Haze
SO + N&O +PM2.5
Human Hair
What is PM
Environmental protection policies
December 2012
Ministry of environmental protection in December 5th announced the first comprehensive air pollution prevention and control planning
Form of sulfur in coal
Burning release heat, known as volatile sulfur
Does not participate in the combustion, is a part of the ash
General, the sulfur content of coal is
Average annual concentration
10%
10%
7%
5%
Environmental protection policies
“Double ten double eight”
Newly added
Causes of hazy weather
The main reason for the formation of smog is PM2.5 concentration is too high, in addition to meteorological factors, the fundamental reason is the huge amount of pollutant emissions. SO2, NOx, Industrial Dust, VOCs are the main pollutants affecting the PM2.5 concentration In 2012，the total discharge of major pollutants in the 30 air. In 2012, the total discharge of these four pollutants 25 are as follows, in which, the total emissions of coal-fired 20 power plants accounted for nearly 50%.
SMOG雾霾英语PPT
Definition
PM2.5
History
1952,12000 people died in it. 1954, London launched a special act of pollution. 1956,again,1200 people dead. Only after 1965,toxic smoke was vanished. 1968,Britain enacted the Clean Air Act. 1980,the fog day has been reduced to five days one year.
Current Situation in China
Two contrast figures
It’s so terrible!
What cause the smog?
Main Causes
1.Low atmosphere
Main Causes
2.The dusty road and the low air humidity (空气湿度)
4. The harm of children's growth
Damage
The most we concern is how it hurts us.
5.Influence psychological health (心理健康)
6.Influence the respiratory system (呼吸系统)
1.Bad effect on our respiratory organ(呼吸气管) and cardiocascular system(心血管系统)
2.Traffic is effected
Damage
雾霾-英文.PPT
8
First of all , what is smog?
The term "smog" was invented to describe the combination of smoke and fog experienced by the city of London in the early 1900s. Modern smog, however, is typically formed by chemical reactions in the lower atmosphere. This is known as photochemical smog. Smog is a combination of fog and haze.
Fog and Haze/Smog
1
Contents
I. Basic information of the Haze II. Causes of hazy weather III. The harm of smog IV. Methods and solutions
2
Basic information of the Haze
Aerosol system composed of the air in the dust, sulfuric acid, nitric acid and other particles cause visual disorder called haze. When the air humidity increases, haze will be transformed into the fog.
9
what is smog ?
雾霾英语讲解
Methods of self-protection
How should we do? Like this?
1、Go out wearing masks
2、Do not open the window in the haze.
3、Light diet and drink plenty of water.
garlic tomatoes persimmons
vegetables
The solutions to solve the haze
1、Face the problem! Do not sugarcoat it！
2、developing new clean energy.
Solar energy
Attention
On 17 October 2013， the IARC（国际癌症研究 机构）released a report ， the first time identified the atmospheric pollution as “carcinogen（致癌物） to humans.”(lung cancer)
(the low atmospheric air pressure. No wind、 no rain)
3、Multiply effect of regional pollution and local pollution.
(the car of Beijing, oil in Tianjin, coal in Hebei makes Beijing severe haze.)
相对湿度 relative humidity
Fog >90% <80%
能见度 visibility
关于雾霾的英语PPT讲稿
Hello，everyoneGood morning！My name is Xiao Weihong,I’m from Sichuan province.And today,my topic is Fog and haze.This is my name,and this is my student number.From this you can know that my topic is about 5 parts,and now,we look at the first part--Definition.Long long ago,we climb with our hands,as time goes by,We are walking upright.But the environment turns bad,we live in a world which is full of poison.In recent years, air pollution has already become one of the biggest environmental problems in China. Thick haze has blown off the coastal areas.So,what is haze?It’s a combination of little drops of water and tiny particles. For better understanding of this noun.Now,we should know another word--PM.It means particulate matter.It also means a small discrete[dɪ'skrit](离散的) mass of solid or liquid matter.So,we can easily know what is PM2.5.It means particles can be drawn into lung[lʌŋ], which diameter is less than 2.5 micron.We often pay our attention to PM2.5，because the number of 2.5 is very important ,if the diameter of particle is bigger than 2.5 micron,it will be stopped by our nose and will not go into our lung. But ifthe size of particle is less than 2.5 micron.It harms us most.So, wether['wɛðɚ] our weather['wɛðɚ] is good is determined by the number of PM2.5.Look at this picture,if the number of PM2.5 of per unit volume is less than 50,we say the air quality is good.if the number is between 50 to 100,we say the air quality is moderate.But if the number is between 151 to 200,we call it unhealthy.and if the number is above 300,we think it horrible.As we know,many places of China is even above 400.So,it’s very dangerous.Now,let’s look a historical event.London smog!Let’s know about it.First,we watch a short video.(I don’t know wether the computer can paly it) Ok,from this short video we can see a black world full of smog.So,what happened in London?In 1952, London smog happened,and it lead to 12000 people died directly or indirectly.In 1954 ,London launched a special act of pollution.After 4 years later,smog happened again,and 1200 people dead.Only after 1965,the toxic smoke was vanished.In 1968,Britain enacted the Clean Air Act.And until 1980, the fog day has been reduced to five days one year.It took about 30 years to solve the problem.So,from this accident,we know thatonce the fog happened, it will be hard to solve it.How about our situation?First,Let’s look some pictures.There’re two contrast figures.The upper left corner is a picture of beautiful scenery,it’s clear,but the one at the lower left corner looks terrible.And the top right one is the map of our country which looks pretty,but from this one we can see nothing except haze.How about this one?Oh,it’s a man who wears a respirator['rɛspəretɚ] is riding a bike in the endless smog.And again,this picture tells us a man is riding a bike in the road.It’s dangerous because it’s hard to see far. The last one,it looks beautiful in some degree.But like mushrooms,the more beautiful the more toxic it is.In fact,it’s very terrible.So,what caused our country to be this situation ?These several reasons are we recognized.First,burning of fossil fuels in vehicles.As we know,the number of cars in our country is increased rapidly.so ,the demand of fossil fuels is increased fast,too .Second,in our country the power plants still rely on fossil fuels. It contributes to air pollution mostly.Third,various industrial processes are existed everywhere.Their emissions of waste polluted the air.Therefore,it’s time to take some measures to change the situation .So, what should our government do? Firstly,our government should strengthen air monitor to know the the actual situation.Secondly, government should enact more strict laws and regulations in order to reduce the sources of pollution.Thirdly,government should regulate people 's daily action and the industrial stly,our country should help develop green and energy-saving energy.Only do these can our country become beautiful again.For an individual,what should we do to reduce the harm of haze?First,if conditions permit,we can wear a respirator which can help us perhaps not much.Second,if we go out ,we should try to take public transportation.Third,hybrid['haɪbrɪd] cars should be regarded. Four,clean energy should be promoted in our daily life.In the last,the public supervision is important. Not only the role of government, but must have the personal effort.Only do this can we have a better tomorrow.So let’s do something from now on.=============================================== =============Thank you,yes,it dose harm our body.as i have saidbefore,the PM2.5 will go into our lung though our respiratory['rɛspərətɔri] tract.Long-term effects can damage respiratory defenses.Particles can cause the loss of the body's immune function.Thank you!yes ,this is a question that we all care about.But as i said before,the haze is the result of long-term development.and I think it will not disappear totally in recent years.But if our government take more actions on the problem,it will be vanished faster than we expect.1.As you have said that we live in a world of haze ,will it cause any harm to our body?2.when do you think the haze will be vanished?。
雾霾Haze英文PPT
The influnence of haze
health
The influnence of haze
trafficΒιβλιοθήκη 1.haze is the obstacle of visibility,which increase traffic accidents
phychology
the low atmosphere makes people feel nervoous and depressed
Go out wearing masks
How to deal with haze
Do not open the window on haze day
How to deal with haze
Light diet and drink plenty of water
How to deal with haze
What is haze?
haze
= SO2＋ NOx ＋
PM 2.5
Present situation
Present situation
The cause of haze
• Now,by these pictures, we can realize the serious problem.Then what cause the problem?
The cause of haze
suspended industrial dust
horizontal static wind phenomenon
vehicle exhaust
Winter heating
The influnence of haze
• • • •
the harm to ourbody the impact on traffic the effect on phychology the influnence on economy
雾霾天气英语介绍ppt课件
第二， 扩散条件不利。 Disadvantageous condition for dispersal
第三， 区域污染和本地污染贡献叠加。 Multiply effect of regional pollution and local pollution
tiananmensquarecoupleweretakingpicturesamidbeijingnationalstadiumbirdnestpopularscience相对湿度relativehumidityhaze9080能见度visibility1km1km10kmmeasurementaqjairqualityindex空气质量指数pm25pm10so2no2o3coupdatedeveryhourapiairpollutionindex空气污染指数so2no2pm10updatedeverydaywhatparticularmatterpm10可吸入颗粒物pm25可入肺颗粒物burningfossilfuelsvehicles机动车燃油powerplants发电厂variousindustrialprocesses各类工业生产airqualityindexlevelshealthconcernnumericalvaluegood050moderate51100unhealthysensitivegroups101150unhealthy151200veryunhealthy201300hazardous300offcharts云里雾里fog1terrifying恐怖hangridicule调侃dustcrazilythick
Be strong and do not breathe!