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AirPollution

Keyspeaker:kaihaoYuAirPollution1Introduction

Weallknowthatcleanairisimportanttogoodhealth.Whereveryougoandwhateveryoudo,youarealwayssurroundedbyaseaofgasesthatwecallair.Ifthereareimpurities(雜質(zhì))intheair,theymaybeabsorbedbyourbodies

andmakeusill.Weneedcleanair,but

unfortunately,airpollutionisgloballypresent,especiallyincities.IntroductionWeallknow2RevealacommonandseriousprobleminChinaRevealacommonandseriouspr3First:CausesandcurrentstatusSecond:PollutiontypesThird:HazardandSolutionsFirst:Causesandcurrentstatu4

Nowtheairwebreatheispolluted.Whywastheatmosphere

pollution?Factoriesand

automobileexhaustarethemajorreasons.Nowtheairwebreatheisp5statuspointone:Acidrainkeywords:pH,C,SO2

,southeastofchinastatuspointone:Acidrain6

pointtwo:Urbanairqualitykeywords:SO2,bothsidesoftheroadseverepollutioninnorthernwinterpointtwo:Urbanairquality7pointthree:Indoorairqualitykeywords:urbanrenovation,indooropenflame

Manypeoplespendlargeportionoftimeindoors-asmuchas80-90%oftheirlives.Wework,study,eat,drinkandsleepinenclosedenvironmentswhereaircirculationmayberestricted.Forthesereasons,someexpertsfeelthatmorepeoplesufferfromtheeffectsofindoorairpollutionthanoutdoorpollution.

pointthree:Indoorairqual8pollutiontypes:1,nitrogenoxide(NOx)Istherepresentativeifatmosphericpollutioncausessubstance.Thereasoniscausedbynitrogenoxidesofboiler(鍋爐),automobileetcdischargesmoke.Thiskindofsmokeafterburningintheairasnitricoxideinline,airbecomenitrogendioxide.Nitricoxideisthereasoncausingacidrain.大氣污染英語版課件92,floatingparticleshapematerial(SPM浮游粒子狀物質(zhì))

Materialisinairzooplanktonfloatingsubstance,isoneoftheatmosphericpollutionofpollution.Inaddition,thesmokefromfactorycaremissions,outsideofman-madefactorssuchasvolcano,forestdisastersoccurnaturallynaturaldisasterisalsooneofthereasonsit.Floatingparticleshapematerialisharmfultohumanhealthofatmosphericpollutionsubstances,cancauserespiratorypatientsriseofmortality.2,floatingparticleshapemat103,photochemical

Photochemicalcars,factories,etcokindantoisthenitrogenoxidesandhydrocarbon(碳?xì)浠衔铮ヾischargeatmosphericpollutionsubstancessuchaswiththesun'sultravioletraytohumanbodyproduceschemicalreaction,theeffectsofatmosphericpollutionsubstances,iswhytuckphotochemical.Whenokindantohighconcentrationofchemicalwhencanleadtoeyes,throatuncomfortable.3,photochemical114,sulfurdioxide(SO2)sulfonylureas

So2iscoal,oilburningsulfonylureaswhenatmosphericpollutionproduced.Characteristicsofsulfurdioxidelikeaneggsulfonylureaswhenthesmellofrottingout.Theonsetofpollutioncausedasthma(哮喘)reasoniscausedbysulfurdioxidesulfonylureasatmosphericpollution.5,carbonmonoxide(CO)

Carbonmonoxideisincompletecombustionbyoilcausedinsipidity,odourless,colorless,nostimulationatmospherepollutants.Carbonmonoxideisveryterribleatmosphericpollutants,ifabsorbedalotofcarbonmonoxidecanleadtodeath.4,sulfurdioxide(SO2)sulfon12

Hazardofairpollution(1)Tohumanhealth(2)Toanimalsandplants(3)ToweatherandclimateHazardofairpollution13StudieshaveestimatedthatthenumberofpeoplekilledannuallyintheUSalonecouldbeover50,000.Olderpeoplearehighlyvulnerabletodiseasesinducedbyairpollution.Thosewithheartorlungdisordersareunderadditionalrisk.Childrenandinfantsarealsoatseriousrisk.Diseasessuchasbronchitis(支氣管炎),lungcancer,andheartdiseasemayalleventuallyappearinpeopleexposedtoairpollution.Studieshaveestimatedthatth14Lookattheireyes….How

poor…Lookattheireyes….Howpoor…15Airpollutantssuchasozone,nitrogenoxides,andsulfurdioxidealsohaveharmfuleffectsonnaturalecosystems.Theycankillplantsandtreesbydestroyingtheirleaves,andcankillanimals,especiallyfishinhighlypollutedrivers.ACIDRAINAirpollutantssuchasozone,16Theairpollutionbringsussomanypainandburden,sonext.Weshouldknowhowcanwepreventthedamagingeffectsofairpollution?Theairpollutionbringsusso17

Onthewhole,theelimination(排除)ofairpollutionneedstheco-efforts(努力)fromthegovernment,thepublicandtheenvironments.Thisproblemwillbesolvedonlywiththehelpofscienceandtechnology.Onthewhole,theeliminati18

Thefirststeptosolvingairpollutionisassessment.Researchershaveinvestigatedoutdoorairpollutionandhavedevelopedstandardsformeasuringthetypeandamountofsomeseriousairpollutants. Preventionisanotherkeytocontrollingairpollution.Theregulatoryagenciesmentionedaboveplayanessentialroleinreducingandpreventingairpollutionintheenvironment.Thefirststeptosolvinga19Thelastbutnottheleast,weeverybodyshouldbeawareoftheimportanceoftheairandtakeactionstoprotectit.onlyinthiswaycanwehaveabrighterandbetterfuture.Solet'smoveup.Thelastbutnottheleast,w20Thankyou~~~Thankyou~~~21AirPollution

Keyspeaker:kaihaoYuAirPollution22Introduction

Weallknowthatcleanairisimportanttogoodhealth.Whereveryougoandwhateveryoudo,youarealwayssurroundedbyaseaofgasesthatwecallair.Ifthereareimpurities(雜質(zhì))intheair,theymaybeabsorbedbyourbodies

andmakeusill.Weneedcleanair,but

unfortunately,airpollutionisgloballypresent,especiallyincities.IntroductionWeallknow23RevealacommonandseriousprobleminChinaRevealacommonandseriouspr24First:CausesandcurrentstatusSecond:PollutiontypesThird:HazardandSolutionsFirst:Causesandcurrentstatu25

Nowtheairwebreatheispolluted.Whywastheatmosphere

pollution?Factoriesand

automobileexhaustarethemajorreasons.Nowtheairwebreatheisp26statuspointone:Acidrainkeywords:pH,C,SO2

,southeastofchinastatuspointone:Acidrain27

pointtwo:Urbanairqualitykeywords:SO2,bothsidesoftheroadseverepollutioninnorthernwinterpointtwo:Urbanairquality28pointthree:Indoorairqualitykeywords:urbanrenovation,indooropenflame

Manypeoplespendlargeportionoftimeindoors-asmuchas80-90%oftheirlives.Wework,study,eat,drinkandsleepinenclosedenvironmentswhereaircirculationmayberestricted.Forthesereasons,someexpertsfeelthatmorepeoplesufferfromtheeffectsofindoorairpollutionthanoutdoorpollution.

pointthree:Indoorairqual29pollutiontypes:1,nitrogenoxide(NOx)Istherepresentativeifatmosphericpollutioncausessubstance.Thereasoniscausedbynitrogenoxidesofboiler(鍋爐),automobileetcdischargesmoke.Thiskindofsmokeafterburningintheairasnitricoxideinline,airbecomenitrogendioxide.Nitricoxideisthereasoncausingacidrain.大氣污染英語版課件302,floatingparticleshapematerial(SPM浮游粒子狀物質(zhì))

Materialisinairzooplanktonfloatingsubstance,isoneoftheatmosphericpollutionofpollution.Inaddition,thesmokefromfactorycaremissions,outsideofman-madefactorssuchasvolcano,forestdisastersoccurnaturallynaturaldisasterisalsooneofthereasonsit.Floatingparticleshapematerialisharmfultohumanhealthofatmosphericpollutionsubstances,cancauserespiratorypatientsriseofmortality.2,floatingparticleshapemat313,photochemical

Photochemicalcars,factories,etcokindantoisthenitrogenoxidesandhydrocarbon(碳?xì)浠衔铮ヾischargeatmosphericpollutionsubstancessuchaswiththesun'sultravioletraytohumanbodyproduceschemicalreaction,theeffectsofatmosphericpollutionsubstances,iswhytuckphotochemical.Whenokindantohighconcentrationofchemicalwhencanleadtoeyes,throatuncomfortable.3,photochemical324,sulfurdioxide(SO2)sulfonylureas

So2iscoal,oilburningsulfonylureaswhenatmosphericpollutionproduced.Characteristicsofsulfurdioxidelikeaneggsulfonylureaswhenthesmellofrottingout.Theonsetofpollutioncausedasthma(哮喘)reasoniscausedbysulfurdioxidesulfonylureasatmosphericpollution.5,carbonmonoxide(CO)

Carbonmonoxideisincompletecombustionbyoilcausedinsipidity,odourless,colorless,nostimulationatmospherepollutants.Carbonmonoxideisveryterribleatmosphericpollutants,ifabsorbedalotofcarbonmonoxidecanleadtodeath.4,sulfurdioxide(SO2)sulfon33

Hazardofairpollution(1)Tohumanhealth(2)Toanimalsandplants(3)ToweatherandclimateHazardofairpollution34StudieshaveestimatedthatthenumberofpeoplekilledannuallyintheUSalonecouldbeover50,000.Olderpeoplearehighlyvulnerabletodiseasesinducedbyairpollution.Thosewithheartorlungdisordersareunderadditionalrisk.Childrenandinfantsarealsoatseriousrisk.Diseasessuchasbronchitis(支氣管炎),lungcancer,andheartdiseasemayalleventuallyappearinpeopleexposedtoairpollution.Studieshaveestimatedthatth35Lookattheireyes….How

poor…Lookattheireyes….Howpoor…36Airpollutantssuchasozone,nitrogenoxides,andsulfurdioxidealsohaveharmfuleffectsonnaturalecosystems.Theycankillplantsandtreesbydestroyingtheirleaves,andcankillanimals,especiallyfishinhighlypollutedrivers.ACIDRAINAirpollutantssuchasozone,3

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