大气污染英语版

AirPollution,Keyspeaker:kaihaoYu,Introduction,Weallknowthatcleanairisimportanttogoodhealth.Whereveryougoandwhateveryoudo,youarealwayssurroundedbyaseaofgasesthatwecallair.Ifthereareimpurities(杂质)intheair,theymaybeabsorbedbyourbodiesandmakeusill.Weneedcleanair,butunfortunately,airpollutionisgloballypresent,especiallyincities.,RevealacommonandseriousprobleminChina,First:CausesandcurrentstatusSecond:PollutiontypesThird:HazardandSolutions,Nowtheairwebreatheispolluted.Whywastheatmospherepollution?Factoriesandautomobileexhaustarethemajorreasons.,status,pointone:Acidrainkeywords:pH,C,SO2,southeastofchina,pointtwo:Urbanairqualitykeywords:SO2,bothsidesoftheroadseverepollutioninnorthernwinter,pointthree:Indoorairqualitykeywords:urbanrenovation,indooropenflameManypeoplespendlargeportionoftimeindoors-asmuchas80-90%oftheirlives.Wework,study,eat,drinkandsleepinenclosedenvironmentswhereaircirculationmayberestricted.Forthesereasons,someexpertsfeelthatmorepeoplesufferfromtheeffectsofindoorairpollutionthanoutdoorpollution.,pollutiontypes:1,nitrogenoxide(NOx)Istherepresentativeifatmosphericpollutioncausessubstance.Thereasoniscausedbynitrogenoxidesofboiler(锅炉),automobileetcdischargesmoke.Thiskindofsmokeafterburningintheairasnitricoxideinline,airbecomenitrogendioxide.Nitricoxideisthereasoncausingacidrain.,2,floatingparticleshapematerial(SPM浮游粒子状物质)Materialisinairzooplanktonfloatingsubstance,isoneoftheatmosphericpollutionofpollution.Inaddition,thesmokefromfactorycaremissions,outsideofman-madefactorssuchasvolcano,forestdisastersoccurnaturallynaturaldisasterisalsooneofthereasonsit.Floatingparticleshapematerialisharmfultohumanhealthofatmosphericpollutionsubstances,cancauserespiratorypatientsriseofmortality.,3,photochemicalPhotochemicalcars,factories,etcokindantoisthenitrogenoxidesandhydrocarbon（碳氢化合物）dischargeatmosphericpollutionsubstancessuchaswiththesunsultravioletraytohumanbodyproduceschemicalreaction,theeffectsofatmosphericpollutionsubstances,iswhytuckphotochemical.Whenokindantohighconcentrationofchemicalwhencanleadtoeyes,throatuncomfortable.,4,sulfurdioxide(SO2)sulfonylureasSo2iscoal,oilburningsulfonylureaswhenatmosphericpollutionproduced.Characteristicsofsulfurdioxidelikeaneggsulfonylureaswhenthesmellofrottingout.Theonsetofpollutioncausedasthma（哮喘）reasoniscausedbysulfurdioxidesulfonylureasatmosphericpollution.5,carbonmonoxide(CO)Carbonmonoxideisincompletecombustionbyoilcausedinsipidity,odourless,colorless,nostimulationatmospherepollutants.Carbonmonoxideisveryterribleatmosphericpollutants,ifabsorbedalotofcarbonmonoxidecanleadtodeath.,Hazardofairpollution(1)Tohumanhealth(2)Toanimalsandplants(3)Toweatherandclimate,StudieshaveestimatedthatthenumberofpeoplekilledannuallyintheUSalonecouldbeover50,000.Olderpeoplearehighlyvulnerabletodiseasesinducedbyairpollution.Thosewithheartorlungdisordersareunderadditionalrisk.Childrenandinfantsarealsoatseriousrisk.Diseasessuchasbronchitis（支气管炎）,lungcancer,andheartdiseasemayalleventuallyappearinpeopleexposedtoairpollution.,Lookattheireyes.,Howpoor,Airpollutantssuchasozone,nitrogenoxides,andsulfurdioxidealsohaveharmfuleffectsonnaturalecosystems.,Theycankillplantsandtreesbydestroyingtheirleaves,andcankillanimals,especiallyfishinhighlypollutedrivers.,ACIDRAIN,Theairpollutionbringsussomanypainandburden,sonext.Weshouldknowhowcanwepreventthedamagingeffectsofairpollution?,Onthewhole,theelimination（排除）ofairpollutionneedstheco-efforts（努力）fromthegovernment,thepublicandtheenvironments.Thisproblemwillbesolvedonlywiththehelpofscienceandtechnology.,Thefirststeptosolvingairpollutionisassessment.Researchershaveinvestigatedoutdoorairpollutionandhavedevelopedstandardsformeasuringthetypeandamountofsomeseriousairpollutants.Preventionisanotherkeytocontrollingairpollution.Theregulatoryagenciesmentionedaboveplayanessentialroleinreducingandpreve