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Evidence for a 50% increase in H2O2 over the past 200 years from a Greenland ice core

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dc.contributor.authorSigg, Andreas
dc.contributor.authorNeftel, Albrecht
dc.date.accessioned2024-09-02T17:43:24Z
dc.date.available2024-09-02T17:43:24Z
dc.date.issued1991
dc.description.abstractHydrogen peroxide has attracted increasing attention from atmospheric chemists over the past decade, because in the gas phase it acts as a reservoir species of OH radicals (1,2), and in the aqueous phase it plays a key role in the oxidation of SO2 to H2SO4 in clouds (3). It is also known to have an adverse effect on trees and plants (4). In 1984, hydrogen peroxide was identified as one of the dominant trace species in polar ice (5), introducing the possibility of constructing a record of atmospheric hydrogen peroxide concentrations from ice-core data. Here we present such a record for the past 700 years from Summit, Central Greenland. We find that hydrogen peroxide concentrations have increased by 50% over the past 200 years, with most of the increase occurring in the past 20 years, indicating that human activities may be responsible for such a dramatic change.
dc.description.numberOfPages3
dc.identifier.doi10.48350/158242
dc.identifier.publisherDOI10.1038/351557a0
dc.identifier.urihttps://boris-portal.unibe.ch/handle/20.500.12422/43001
dc.language.isoen
dc.publisherNature Publishing Group
dc.relation.ispartofNature
dc.relation.issn0028-0836
dc.relation.organizationDCD5A442BF29E17DE0405C82790C4DE2
dc.relation.organizationDCD5A442C44AE17DE0405C82790C4DE2
dc.subject.ddc500 - Science::530 - Physics
dc.titleEvidence for a 50% increase in H2O2 over the past 200 years from a Greenland ice core
dc.typearticle
dspace.entity.typePublication
oaire.citation.endPage559
oaire.citation.issue6327
oaire.citation.startPage557
oaire.citation.volume351
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oairecerif.author.affiliation#PLACEHOLDER_PARENT_METADATA_VALUE#
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unibe.contributor.rolecreator
unibe.contributor.rolecreator
unibe.date.licenseChanged2021-08-18 07:17:08
unibe.description.ispublishedpub
unibe.eprints.legacyId158242
unibe.journal.abbrevTitleNATURE
unibe.refereedTRUE
unibe.subtype.articlejournal

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