Reference : Observations of long-lived anthropogenic halocarbons at the high-Alpine site of Jungfrau...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
http://hdl.handle.net/2268/2548
Observations of long-lived anthropogenic halocarbons at the high-Alpine site of Jungfraujoch (Switzerland) for assessment of trends and European sources
English
Reimann, Stefan [ > > ]
Vollmer, M. K. [ > > ]
Folini, Doris [ > > ]
Steinbacher, Martin [ > > ]
Hill, M. [ > > ]
Buchmann, Brigitte [ > > ]
Zander, Rodolphe mailto [Université de Liège - ULg > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences) >]
Mahieu, Emmanuel mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS) >]
1-Mar-2008
Science of the Total Environment
Elsevier Science
391
224-231
Yes (verified by ORBi)
International
0048-9697
Amsterdam
The Netherlands
[en] CFC ; HCFC ; emissions ; Montreal Protocol ; Kyoto Protocol
[en] Anthropogenic halocarbons, such as chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), hydrofluorocarbons (HFCs), bromocarbons (halons) and long-lived chlorinated solvents have been measured continuously at the high-Alpine site of Jungfraujoch (Switzerland) since January 2000. Chloro- and bromo-containing halocarbons are responsible for the stratospheric ozone depletion and will be globally banned from usage within the next years. With the exception of the stable CFC-12 (CF2Cl2), all major CFCs and chlorinated solvents show a negative trend in recent years in their background concentrations at Jungfraujoch. HCFCs, as their first-generation substitute, are still increasing with a few percent per year. However, the frequency and the strength of HCFCs pollution events, which are caused by regional European emissions, are already declining. This can be seen as a sign of the impending ban of these gases within the next years in Europe. On the other hand, HFCs as the second-generation substitutes, are increasing with relative rates of at least 10% per year (e.g. almost 5 ppt per year for HFC-134a). An allocation of European sources was attempted by combining measured concentrations with trajectories of air masses reaching the Jungfraujoch during pollution events. Potential source regions could be detected in Italy, France, Spain and Germany.
http://hdl.handle.net/2268/2548
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V78-4R718CY-1&_user=532038&_coverDate=03%2F01%2F2008&_rdoc=9&_fmt=high&_orig=browse&_srch=doc-info(%23toc%235836%232008%23996089997%23678096%23FLA%23display%23Volume)&_cdi=5836&_sort=d&_docanchor=&_ct=16&_acct=C000026659&_version=1&_urlVersion=0&_userid=532038&md5=791cb479225a6375d6942a9ca30154b2

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
Reimann_JOCH75_SciTotEnv_391_2008.pdfPublisher postprint965.55 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.