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Publication:
Sulphate and nitrate concentrations in snow from South Greenland 1895-1978

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dc.contributor.authorNeftel, A.
dc.contributor.authorBeer, J.
dc.contributor.authorOeschger, H.
dc.contributor.authorZürcher, F.
dc.contributor.authorFinkel, R. C.
dc.date.accessioned2024-09-02T17:43:31Z
dc.date.available2024-09-02T17:43:31Z
dc.date.issued1985
dc.description.abstractAn understanding of the phenomenon of acid rain requires the identification of the sources of the species affecting the pH of rainwater, both natural and anthropogenic, and their temporal and spatial development. The scant data concerning the historical development of the acidity in precipitation are from urban regions or their vicinity, where local effects dominate and obscure the hemispherical pattern1. The Greenland ice sheet allows us to trace the evolution of the acid rain in a remote location that is free from local effects. Sulphuric and nitric acids are the two species that dominate the acidity in precipitation (2–4). We report here measurements of [SO42−] and [NO3−] in firn samples spanning the period 1895–1978. Samples, each covering 1 yr, were taken from a 70-m core drilled at Dye 3, South Greenland; [NO3−] and [SO42−] both increased by a factor of ˜2 during the period. By comparing the recent concentrations of nitrate and sulphate with those resulting from natural sources, we conclude that anthropogenic emissions of the precursors (NOx, SO2) had already surpassed natural sources in the late 1950s.
dc.description.numberOfPages3
dc.identifier.doi10.48350/158252
dc.identifier.publisherDOI10.1038/314611a0
dc.identifier.urihttps://boris-portal.unibe.ch/handle/20.500.12422/43011
dc.language.isoen
dc.publisherNature Publishing Group
dc.relation.ispartofNature
dc.relation.issn0028-0836
dc.relation.organizationDCD5A442BF29E17DE0405C82790C4DE2
dc.subject.ddc500 - Science::530 - Physics
dc.titleSulphate and nitrate concentrations in snow from South Greenland 1895-1978
dc.typearticle
dspace.entity.typePublication
oaire.citation.endPage613
oaire.citation.issue6012
oaire.citation.startPage611
oaire.citation.volume314
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unibe.date.licenseChanged2021-08-18 08:54:06
unibe.description.ispublishedpub
unibe.eprints.legacyId158252
unibe.journal.abbrevTitleNATURE
unibe.refereedTRUE
unibe.subtype.articlejournal

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