Preventionandcontrolofairpollutionisahugesystemengineering,needindividualandcollective,national,andeventhejointeffortsoftheworld.Idon'tthinkitisasimplewaytosolvetheairpollution,butpeoplecanthroughtosaveenergyandreduceharmfulgasemissionsinvehiclesandcoal-firedpowerplantstoachievethegoalofreducingpollution.Toreduceemissionsinthefirstplace.Reformtheenergystructure,usemorepollution-freeenergysuchassolarenergy,windenergy,hydroelectricpowerandlowpollution,suchasnaturalgas.Second,siteselection,designofchimney,urbanandindustrialplanningshouldbereasonable,don'temittersexcessiveconcentration,repeatedsuperpositiondon'tcausepollution,formationoflocalseriouspollutionincident.Third,greeningafforestation,makemoreplantsabsorbpollutants,reduceatmosphericpollution.Inaddition,thepreventionandcontrolofairpollutionisahugesystemengineering,needindividualandcollective,national,andeventhejointeffortsoftheworld.