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Fresh air in the 21st century?

dc.contributor.authorPrather, M.
dc.contributor.authorGauss, M.
dc.contributor.authorBerntsen, T.
dc.contributor.authorIsaksen, I.
dc.contributor.authorSundet, J.
dc.contributor.authorBey, I.
dc.contributor.authorBrasseur, G.
dc.contributor.authorDentener, F.
dc.contributor.authorDerwent, R.
dc.contributor.authorStevenson, D.
dc.contributor.authorGrenfell, L.
dc.contributor.authorHauglustaine, D.
dc.contributor.authorHorowitz, L.
dc.contributor.authorJacob, D.
dc.contributor.authorMickley, L.
dc.contributor.authorLawrence, M.
dc.contributor.authorvon Kuhlmann, R.
dc.contributor.authorMuller, J.-F.
dc.contributor.authorPitari, G.
dc.contributor.authorRogers, H.
dc.contributor.authorJohnson, M.
dc.contributor.authorPyle, J.
dc.contributor.authorLaw, K.
dc.contributor.authorvan Weele, M.
dc.contributor.authorWild, O.
dc.date2003
dc.date.accessioned2017-05-03T10:39:23Z
dc.date.available2017-05-03T10:39:23Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/5146
dc.descriptionOzone is an air quality problem today for much of the world's population. Regions can exceed the ozone air quality standards (AQS) through a combination of local emissions, meteorology favoring pollution episodes, and the clean-air baseline levels of ozone upon which pollution builds. The IPCC 2001 assessment studied a range of global emission scenarios and found that all but one projects increases in global tropospheric ozone during the 21st century. By 2030, near-surface increases over much of the northern hemisphere are estimated to be about 5 ppb (+2 to +7 ppb over the range of scenarios). By 2100 the two more extreme scenarios project baseline ozone increases of >20 ppb, while the other four scenarios give changes of -4 to +10 ppb. Even modest increases in the background abundance of tropospheric ozone might defeat current AQS strategies. The larger increases, however, would gravely threaten both urban and rural air quality over most of the northern hemisphere.
dc.languageeng
dc.titleFresh air in the 21st century?
dc.typeArticle
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceScientific
dc.subject.freeOzone
dc.subject.freeParticulate emissions
dc.subject.freeTroposphere
dc.subject.freeAir pollution
dc.subject.freeAir quality standards
dc.subject.freeOzone
dc.subject.freePollution
dc.subject.freeTroposphere
dc.subject.freeFresh air
dc.subject.freeAir quality
dc.subject.freeAir quality
dc.subject.freeair quality
dc.subject.freeatmospheric pollution
dc.subject.freeozone
dc.subject.freeBaseline levels
dc.subject.freeGlobal emissions
dc.subject.freeLocal emissions
dc.subject.freeNorthern Hemispheres
dc.subject.freePollution episodes
dc.subject.freeQuality problems
dc.subject.freeTropospheric ozone
dc.subject.freeUrban and rural
dc.source.titleGeophysical Research Letters
dc.source.volume30
dc.source.issue2
dc.source.pageA1100
Orfeo.peerreviewedYes
dc.identifier.doi10.1029/2002GL016285
dc.identifier.scopus2-s2.0-0037928122


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