文献翻译-中国大气污染现状Airpollutionstateofchina1UrbanairqualitysituationofchinaInrecentyears,oururbanairqualityisstability,thetrendyisimproving.Thereare660citiesofficiallydesignatedinthemonitoringof343cities,theairqualityofsecondaryandtertiarylevelsandtheurbanpooraroundonethirdofeachvolume.Ultra-slightdeclineintheproportionofurbanstandards,particlesfrompollutionbroader,seriouspollutioninsomecitiessulphurdioxide,nitrogendioxideareallurbanpollution.Theareasaffectedbyacidrainandpollutionstability,theSouthacidrainpollutedareas,theacidraincontrolzoneofthecityhasmorethan90%acidrain113airpollutioncontrolinkeycities,theairqualityofGrade2,Grade3andthenumberofurbanpoorlevelsrespectively40,41and32,respectively35.4%,36.3%and28.3%.Ofthese,36citieswheresulphurdioxideandparticulateemissionsstandardurban73.Ourairqualityurbanenvironmentwiththefollowingfeatures:First,theparticlesarestilltheprimarypollutants.Particleemissionsarethemainpollutantsaffectingairqualityin343monitoredcities,60%ofparticlesfromurbanconcentrationlimit,64.6%ofthecitywheremajorcities.ParticlepollutionfromthenortherncityoverallintheSouth-cities,particlesfrompollutedcitiesmainlyinthenorthwest,northChina,Shanxi,Shaanxi,Henan,Hebei,Ningxia,Gansu,Xinjiang,InnerMongoliaandotherprovincesandregionsoftheparticlepollutionaremoreprominent.Thesulfurdioxidedischargesthecurrentsituation:withthefastdevelopmentoftheeconomyofourcountry,coalconsumptionisincreasingconstantly.Nationalcoalconsumptionrisesto1,280milliontonsin11015from1010milliontonsin11010,thesulfurdioxidedischargesthetotalamounttoincreasesharplywithgrowthofthevolumeofconsumptionofcoal.Thedischargegeneralquantityofnationalsulfurdioxidereaches23,700,000tonsby11015.Dischargeinthesourceinallkindsofsulfurdioxide,thepowerplantandemissionofindustryboileraccountfor70%,becomingthedischargerichandinfluentialfamily,allkindsofpercentageofdischargingthesulfurdioxideofpollutionsourcesisformedasfollows:Civilcookingutensils12%,industrialkiln11%,boiler34%ofindustry,boiler35%ofhydropowerstation,other8%.Thesmokeanddust，dustdischargethecurrentsituation:thetotalamountofsmokeanddustthat本文来源：网络收集与整理，如有侵权，请联系作者删除，谢谢！---本文来源于网络，仅供参考，勿照抄，如有侵权请联系删除---