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1、HazeTimeAbstract:Thispassageismainlyabouthaze,includingthedefinitionofhaze,thecausesofhaze,hazardsofhazeandwaystocontrolhaze.Anditintroducedthedetailsofhazefromfourpartsabove.Briefly,Haze,asthenamesuggeststhat,itisfogandhaze.Andtwomainpointscomposedthecausesofhaze,whi
2、charehumanactivitiesandclimaticfactors.Meanwhile,therearealsotwomainrespectsofthehazardsofhaze,thatis，theharmtothehumanbodyandthehazardsontheenvironmentandtraffic.Therefore,governinghazecannotalonebethetaskofenvironmentalprotectiondepartmentsbuttheresponsibilitiesofal
3、lpeople.Allofusaresupposedtotakeactionstocontrolhazeandprotectourfamily.Asweallknow,lastyear,manycitiesinourcountryespeciallysomebigcities,suchasournation’scapitalBeijing,industrialcityTianjingandsoon,werecoveredbyhaze,sowewentintoaHazeTimein2014.Unfortunately,hazewas
4、noteliminatedthoroughly,andthisyear2015wearestillpuzzledbyhazeandsomethingthatitbringstous.Therefore,itisnecessaryforallofustoknowabouthaze,tobefamiliarwithitandtodosomethingtocontrolit.Iwillintroduceitfromfourparts:whatishaze,thecausesofhaze,hazardsofhazeandwaystocon
5、trolhaze.1.Whatishaze?Haze,asthenamesuggeststhatitisfogandhaze.Butthereisabigdifferencebetweenthefogandhaze.Visualimpairmentcausedbythecompositionofaerosolparticlesofdustintheairsystem,sulfuricacid,nitricacidcalledhaze.Fogisanaerosolsystemwhichiscomposedofalargenumber
6、oftinywaterdropletsoricecrystalsintheairsuspendednearthesurface.Fogandhazeisastateairpollution,hazeisexcessivelevelsofsuspendedparticulatematterintheatmosphereofavarietyofgeneralstatements,especiallyPM2.5(aerodynamicequivalentdiameterlessthanorequalto2.5micronparticle
7、s)isconsideredtobecausedbyhazeweather"culprit."Withthedeteriorationofairquality,hazeweatherphenomenonincreases,harmincrease.Chinainmanyareasofthehazefoggyweatherphenomenaareincorporatedtogetherassevereweatherwarningandforecast.Collectively,the"fogandhaze"1.Causesofhaz
8、eTherearetwomainaspectsthatcausedhaze.Oneishumans’activities,theotherisclimaticfactors.(1)Humans’activitiesItissafetosaythat
