英语 环境ppt课件.ppt

TeamMembers：,AtmosphericPollution,1,Contents,2,Thedefinitionofairpollution,ISOInternationalStandardOrganization,Humanactivities,Enoughquantityenoughtime,Harmhumanscomfortandhealth,Damageenvironment,Naturalprocess,3,primarypollutionnoxiousgasdustfallasbestosairborneparticulateInorganicmetaldust,secondarypollutionSulfurdioxide(SO2)、Nitricacid(HNO3)、sulfate，nitrate、acrolein、PNA、Ozone（O3）,4,Thefirstairpollution,Thesecondairpollution,Thethirdairpollution,SootpollutionFirstIndustrialRevolutioninEnglandinthe18thcenturybyGuildDesignInc.,e,photochemicalsmogThedevelopmentofoilandautomobileindustryinthe19thcentury,IndoorairpollutionStartofmiddleof20centuryandcontinuenowadaysPublicplaceIndoorOffice,5,EnvironmentalgroupswarnedthatAsiaisfacingunprecedentedairpollution.Inthisarea,becausepeopleareexposedtohazardousaircaused0.8milliondeathseveryyear.,ThestatusquoofChineseairpollution,6,InChina,sincetheadoptionofanopeningandreformpolicy,Chinesedevelopmenthasaccompaniedwithsevereairpollution.,7,Thirtyyearsago,theblueskyofChina,8,Nowdays,therearefrequentappearanceofextremeweather.Thesandstormweatherinbeijing,9,Inmostchinesecityappearthefogandhazeweather,10,Whatisthereasonofairpollution,Themajorreasons:Factoriesandautomobile,11,Atmosphericpollutioncomposition,Nitrogenoxide(NOx)Floatingparticleshapematerial(SPM)Photochemicalokindanto(Ox)Sulfurdioxide(SO2),12,13,Airpollutionhaschangedourdailylife.,Theinfluenceofairpollutiononhumanity,14,Airpollutioncancausemuchdisease.,15,16,Airpollutioncanalsoincreasetherateoftrafficaccident.,17,Theinfluenceofairpollutiononsocialenvironment,Twocentralaspectsonsocialenvironment,Thelivingenvironment,Thedevelopmentofeconomy,18,Indirectlyairpollutionlimitsthedevelopmentoftheeconomy,Corrosion,Damage,Increasedpollution,19,AirpollutionalsocausedgreatharmonagriculturalproductionAcidraincandirectlyaffectthenormalgrowthofplants,animalsandaquaticorganisms,causingeconomiclosses.Conclusion:Integratetheallnarrative:airpollutionlimitsthedevelopmentoftheeconomy.,20,Airpollutiongeneratedphotochemicalpollutioninourlivingenvironment.,21,Oneinstanceofphotochemicalpollution,LosAngeles,theworldsfirstplaceintheeventofphotochemicalsmog,in1943.Bluesmokefilledthecitysky,theairbecomesturbid.Endangerhumanhealth,largely.Influencethegrowthofanimalsandplants.Studyshowing:Automobileexhaustcausedthiseventmainly.,22,Oneinstanceofphotochemicalpollution,LosAngeles,theworldsfirstplaceintheeventofphotochemicalsmog,in1943.Oneday,bluesmokefilledthecitysky,theairbecomesturbid.Thetoxicsmogendangerhumanhealth,largely.Influencethegrowthofanimalsandplants.,Thestudyshowing:Automobileexhaustcausedthiseventmainly.Photochemicalpollutioninterfereourlivingenvironment.,23,Theinfluenceonclimate,Oneaspectofthevariouseffectsonthenatureenvironmentbyairpollution,24,AnthropogenicGlobalWarming(AGW),Thedefinition-aclimatechangethattheriseintemperatureoftheland,seaandaircausedbythegreenhouseduringaperiod,whichmainlyduetotheextensiveuseoffossilfuelsbyhuman,andthenheavyemissionswithgreenhousegas.Thestatusquo-relativeriseofsealevel,polaricecapmelting,frequentdroughtandfloor,moreandmorenewdiseaseetc.,25,DroughtandFlood,26,Themajorpollutants-carbondioxide(CO2),suspendedparticulatematter(SPM).CO2canabsorbinfraredradiationfromtheEarththatpreventstheheatfromradiatingintospace.25%CO2=0.5-2surfacetemperature100%CO2=1.5-6surfacetemperature2.SPMfortifiesthecloudthicknesswhichleadstotheheatpreservationthatcausestheglobalwarming.,27,Themanagementmeasures-Copenhagenclimatecouncil.1.Plantmoretrees2.Uselessfossilfuel3.Stopusingfreon,28,Inreality,Wethought,Howtosolvetheairpollutionmoreeffectively,29,30,LegislationandRegulationNewtechnologiesandmethods,31,LegislationandRegulation,Governmenttakeenvironmentalproblemsmoreseriously,Tightenthestandards,Improvesupervision,Setdownmoreeffectivelaws,Imposetougherpenaltiesonviolators,32,Newtechnologiesandmethods,TheenvironmentalimpactisrelativelyminorItconsumesnofuel,andemitsnoairpollutionTheenergyconsumedtobuildawindpowerplantisequaltothenewenergyproducedbytheplantwithinafewmonths,Windfarm,33,Cyclonicseparationisamethodofremovingparticulatesfromanair,gasorliquidstream,withouttheuseoffilters,throughvortexseparation.,NanotechTitaniumdioxidehasbeenresearchedforitsabilitytoreduceairpollution.Ultravioletlightwillreleasefreeelectronsfrommaterial,therebycreatingfreeradicals,whichbreakupVOCsandNOxgases.Oneformissuperhydrophilic.,postercoatedwithmicroscopic,pollution-eatingnanoparticlesoftitaniumdioxide.absorbthetoxicemissionfromaround20carseachday.,34,Technologygrowthbeneficialtotheenvironmentorharmfultotheenviro