Publikation:
Hg isotopic composition of one-year-old spruce shoots: Application to long-term Hg atmospheric monitoring in Germany

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dc.contributor.authorYamakawa, Akane
dc.contributor.authorAmouroux, David
dc.contributor.authorFettig, Ina
dc.contributor.authorTessier, Emmanuel
dc.contributor.authorKoschorreck, Jan
dc.date.accessioned2024-06-16T13:37:41Z
dc.date.available2024-06-16T13:37:41Z
dc.date.issued2021
dc.description.abstractThe Hg isotopic composition of 1-year-old Norway spruce (Picea abies) shoots collected from Saarland cornurbation Warndt, Germany, since 1985 by the German Environmental Specimen Bank, were measured for a better understanding of the temporal trends of Hg sources. The isotopic data showed that Hg was mainly taken up as gaseous element mercury (GEM) and underwent oxidation in the spruce needles; this led to a significant decrease in the δ202Hg compared with the atmospheric Hg isotopic composition observed for deciduous leaves and epiphytic lichens. Observation of the odd mass-independent isotopic fractionation (MIF) indicated that ÎÌ199Hg and ÎÌ201Hg were close to but slightly lower than the actual values recorded from the atmospheric measurement of the GEM isotopic composition in non-contaminated sites in U.S. and Europe, whereas observation of the even-MIF indicated almost no differences for ÎÌ200Hg. This confirmed that GEM is a major source of Hg accumulation in spruce shoots. Interestingly, the Hg isotopic composition in the spruce shoots did not change very significantly during the study period of >30 years, even as the Hg concentration decreased significantly. Even-MIF (ÎÌ200Hg) and mass-dependent fractionation (MDF) (δ202Hg) of the Hg isotopes exhibited slight decrease with time, whereas odd-MIF did not show any clear trend. These results suggest a close link between the long-term evolution of GEM isotopic composition in the air and the isotopic composition of bioaccumulated Hg altered by mass-dependent fraction in the spruce shoots. © 2021 The Authorsen
dc.format.extent1 Onlineressource (8 pages)
dc.identifier.doihttps://doi.org/10.60810/openumwelt-68
dc.identifier.urihttps://openumwelt.de/handle/123456789/3414
dc.language.isoeng
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectQuecksilber
dc.subjectBiomonitoring
dc.subjectFichte
dc.titleHg isotopic composition of one-year-old spruce shoots: Application to long-term Hg atmospheric monitoring in Germany
dc.title.alternativeHg isotopic composition of one-year-old spruce shoots: Application to long-term Hg atmospheric monitoring in Germany
dc.typeWissenschaftlicher Artikel
dspace.entity.typePublication
local.bibliographicCitation.journalTitleChemosphere
local.bibliographicCitation.originalDOI10.1016/j.chemosphere.2021.130631
local.bibliographicCitation.volume279 (2021)
local.collectionAufsätze
local.contributor.authorId02187953
local.contributor.authorId02187954
local.contributor.authorId02187955
local.identifier.catalogId02484816
local.ingest.leader05199naa a2200000uu 4500
local.jointTitleHG ISOTOPIC COMPOSITION OF ONEYEAROLD SPRUCE SHOOTS APPLICATION TO LONGTERM HG ATMOSPHERIC MONITORING IN GERMANY
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relation.isAuthorOfPublication474bf2a4-71af-4362-ac51-4bff4bf59981
relation.isAuthorOfPublication.latestForDiscoveryf2ab51e1-14b2-4b44-96c2-f58757ed8dcc
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