WorldEnergyOutlookSpecialReport2016:EnergyandAirPollution
Chapter1Energyandairpollution
Highlights
Airpollutionisthefourthgreatestoverallriskfactorforhumanhealthworldwide,afterhigh
bloodpressure,dietary(饮食)risksandsmoking.Latestestimatesattribute(归因)6.5
millionprematuredeathstoairpollution.Amongthemajorairpollutants,fineparticulate(颗
粒)matteristhemostdamagingtohumanhealth,andsulfuroxides(硫氧化物),nitrogen
oxides(氮氧化物)andozone(臭氧)areassociated(联系)witharange(一系列)
ofillnesses.Inadditiontohumanhealth,airpollutionposes(造成,引起)riskstothe
environment,theeconomyandfoodsecurity.
Airpollutantsarisingfromhumanactivityoverwhelmingly(大多数)derive(来自)from
energyproductionanduse,mainlythecombustion(燃烧)offossilfuelsandbiomass.Three
keypollutantsareexaminedindetailinthisreport.Almostallsulfurdioxideandnitrogen
oxidesemissionstotheatmosphereareenergy-related.Withintheenergysector,power
generationandindustryarethemainsourcesofsulfurdioxide,mostlyfromcoaluse.Oiluse
invehiclesandpowergenerationaretheleadingemittersofnitrogenoxides.Consumptionof
biomass,kerosene(煤油)andcoalinthebuildingssector,alongwithindustrialuse,are
responsibleforthebulk(大部分)oftheparticulatematterreachingtheatmosphere.
Theconcentration(集中)ofpeople,economicactivityandenergydemandintheworld’s
growingcitiesmeansthatpoorairqualityisoftenregardedasanurbanproblem.Yetpoorair
qualityalsoaffectsmanyrural(乡村)communities,particularlywherehouseholds(家庭)
continuetorelyonsolidbiomassforcookingandkeroseneforlighting.Moreover,themajor
pollutants–includingsecondary(二次)pollutantsformedbychemicalreactionsinthe
atmosphere–canbetransportedlargedistancesfromtheirsources.
Asthepredominant(主要)sourceofairpollution,theenergysectormustbeattheforefront
(第一线)ofactiontoimproveairqualityaroundtheworld.Arangeofprovenpoliciesand
technologiesareavailabletodoso.IntheUnitedStates,EuropeanUnionandJapan,
regulations(标准)havehelpedtoachieveamajordropinemissionsinsomesectors,although
challengesremain.IndevelopingAsia,lessstringent(严格)regulationsrelatingtofuelquality,
energyefficiencyandpost-combustiontreatmenttechnologiesgenerallymeanthatpollutant
emissionshaveriseninline(一致)withveryrapidgrowthinenergydemandseeninrecent
years,thoughimprovementsinairqualityarebecominganincreasinglyurgentpolicypriority
(优先)inmanyAsiancountries.
WorldEnergyOutlookSpecialReport2016:EnergyandAirPollutionChapter1EnergyandairpollutionHighlightsAirpollutionisthefourthgreatestoverallriskfactorforhumanhealthworldwide,afterhighbloodpressure,dietary(饮食)risksandsmoking. Latestestimatesattribute(归因)6.5millionprematuredeathstoairpollution. Amongthemajorairpollutants,fineparticulate(颗粒)matteristhemostdamagingtohumanhealth,andsulfuroxides(硫氧化物),nitrogenoxides(氮氧化物)andozone(臭氧)areassociated(联系)witharange(一系列)ofillnesses. Inadditiontohumanhealth,airpollutionposes(造成,引起)riskstotheenvironment,theeconomyandfoodsecurity.Airpollutantsarisingfromhumanactivityoverwhelmingly(大多数)derive(来自)fromenergyproductionanduse,mainlythecombustion(燃烧)offossilfuelsandbiomass. Threekeypollutantsareexaminedindetailinthisreport. Almostallsulfurdioxideandnitrogenoxidesemissionstotheatmosphereareenergy-related. Withintheenergysector,powergenerationandindustryarethemainsourcesofsulfurdioxide,mostlyfromcoaluse. Oiluseinvehiclesandpowergenerationaretheleadingemittersofnitrogenoxides. Consumptionofbiomass,kerosene(煤油)andcoalinthebuildingssector,alongwithindustrialuse,areresponsibleforthebulk(大部分)oftheparticulatematterreachingtheatmosphere.Theconcentration(集中)ofpeople,economicactivityandenergydemandintheworld’sgrowingcitiesmeansthatpoorairqualityisoftenregardedasanurbanproblem. Yetpoorairqualityalsoaffectsmanyrural(乡村)communities,particularlywherehouseholds(家庭)continuetorelyonsolidbiomassforcookingandkeroseneforlighting. Moreover,themajorpollutants–includingsecondary(二次)pollutantsformedbychemicalreactionsintheatmosphere–canbetransportedlargedistancesfromtheirsources.Asthepredominant(主要)sourceofairpollution,theenergysectormustbeattheforefront(第一线)ofactiontoimproveairqualityaroundtheworld. Arangeofprovenpoliciesandtechnologiesareavailabletodoso. IntheUnitedStates,EuropeanUnionandJapan,regulations(标准)havehelpedtoachieveamajordropinemissionsinsomesectors,althoughchallengesremain. IndevelopingAsia,lessstringent(严格)regulationsrelatingtofuelquality,energyefficiencyandpost-combustiontreatmenttechnologiesgenerallymeanthatpollutantemissionshaveriseninline(一致)withveryrapidgrowthinenergydemandseeninrecentyears,thoughimprovementsinairqualityarebecominganincreasinglyurgentpolicypriority(优先)inmanyAsiancountries.
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