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Plutonium fallout reconstructed from an Antarctic Plateau snowpack using inductively coupled plasma sector field mass spectrometry

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dc.contributor.authorHwang, Heejin-
dc.contributor.authorHur, Soon Do-
dc.contributor.authorLee, Jeonghoon-
dc.contributor.authorHan, Yeongcheol-
dc.contributor.authorHong, Sungmin-
dc.contributor.authorMotoyama, Hideaki-
dc.date.accessioned2020-10-20T04:48:10Z-
dc.date.available2020-10-20T04:48:10Z-
dc.date.issued2019-06-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/10896-
dc.description.abstractAnthropogenic plutonium (Pu) in the environment is a result of atmospheric nuclear testing during the second half of the 20th century. In this work, we analyzed a 4-meter deep Antarctic Plateau snowpack characterized by a lowsnowaccumulation rate and negligible snowimpurities. These sample conditions enabled us to measure the snowpack Pu fallout by applying inductively coupled plasma sector field mass spectrometry to a few mL of snow melt without purification or preconcentration. Pu concentrations in the reconstructed Pu fallout record for the period after 1956 CE increased and decreased in agreement with past atmospheric nuclear testing. Two peaks and two dips associable with historical events were observed, and the highest peak in 1964(±1) CE approximately coincided with the maximum concentration of non-sea-salt sulfate caused by the Mt. Agung eruption in 1963 CE. Enhanced Pu fallout in the 1970s was attributed the geographical proximity of the Southern Hemispheric nuclear test sites. Our results suggest that by improving the instrumental sensitivity and precision, the potential of the Antarctic ice sheet as an archive of Pu fallout can be further explored and utilized for understanding atmospheric dispersion and for dating ice cores.en_US
dc.languageEnglishen_US
dc.subjectEnvironmental Sciences & Ecologyen_US
dc.subject.classification해당사항없음en_US
dc.titlePlutonium fallout reconstructed from an Antarctic Plateau snowpack using inductively coupled plasma sector field mass spectrometryen_US
dc.title.alternative고분해능 유도결합 플라즈마 질량분석기를 이용한 남극 고원 스노우팩의 플루토늄 낙진기록 복원en_US
dc.typeArticleen_US
dc.identifier.bibliographicCitationHwang, Heejin, et al. 2019. "Plutonium fallout reconstructed from an Antarctic Plateau snowpack using inductively coupled plasma sector field mass spectrometry". <em>SCIENCE OF THE TOTAL ENVIRONMENT</em>, 669(1): 505-511.en_US
dc.citation.titleSCIENCE OF THE TOTAL ENVIRONMENTen_US
dc.citation.volume669en_US
dc.citation.number1en_US
dc.identifier.doi10.1016/j.scitotenv.2019.03.105-
dc.citation.startPage505en_US
dc.citation.endPage511en_US
dc.description.articleClassificationSCI-
dc.description.jcrRateJCR 2017:11.157en_US
dc.subject.keywordAntarctic snowen_US
dc.subject.keywordAtmospheric nuclear testen_US
dc.subject.keywordDome Fujien_US
dc.subject.keywordIce coreen_US
dc.subject.keywordRadionuclideen_US
dc.identifier.localId2019-0055-
dc.identifier.scopusid2-s2.0-85062900083-
dc.identifier.wosid000463663500048-
Appears in Collections  
2018-2018, Reconstruction of past climate and environmental changes using high resolution ice core records in Victoria Land, Antarctica (18-18) / Hur, Soon Do (PE18040)
2017-2018, Reconstruction of past climate and environmental changes using high resolution ice core records in Victoria Land, Antarctica (17-18) / Hur, Soon Do (PE17040; PE18040)
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