Seasonal variation of chemical composition of aerosols at Syowa Station, Antarctica in 2001
Antarctic aerosols collected at Syowa Station in 2001 were analyzed to investigate their seasonal variations and long-range transport of anthropogenic aerosols. The measured chemical species were elemental carbon(E.C.) and organic carbon(O.C.) using a combustion technique, SO_4^<2->, NO_3^-, C...
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ftnipr:oai:nipr.repo.nii.ac.jp:00002962 2023-05-15T13:49:00+02:00 Seasonal variation of chemical composition of aerosols at Syowa Station, Antarctica in 2001 Hiroshi Kobayashi Keiichiro Hara Masataka Shiobara Takashi Yamanouchi Kazuo Osada Sachio Ohta 2003-11 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2962 http://id.nii.ac.jp/1291/00002962/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2962&item_no=1&attribute_id=18&file_no=1 en eng Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi/National Institute of Polar Research/National Institute of Polar Research/National Institute of Polar Research/Graduate School of Environmental Studies, Nagoya University/Graduate School of Engineering, Hokkaido University National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2962 http://id.nii.ac.jp/1291/00002962/ AA1129795X Polar meteorology and glaciology, 17, 68-80(2003-11) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2962&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 2003 ftnipr 2022-11-26T19:42:23Z Antarctic aerosols collected at Syowa Station in 2001 were analyzed to investigate their seasonal variations and long-range transport of anthropogenic aerosols. The measured chemical species were elemental carbon(E.C.) and organic carbon(O.C.) using a combustion technique, SO_4^<2->, NO_3^-, Cl^-, Na^+, NH_4^+, K^+, Ca^<2+> and Mg^<2+> using ion chromatographs, and metals such as Al, V, Cr, Mn, Fe, Co, Ni, Zn and Pb using an inductively coupled plasma mass spectrometer. Total mass concentration of aerosols ranged from 0.366 to 2.72μg/m^3 and increased from winter to spring. The NO_3^- concentration was lower than 0.01μg/m^3 in March-July; in contrast, it was higher than 0.02μg/m^3 in August-November. Concentration of elemental carbon was relatively low in April-June and was high in March, October and November. In October and November, NO_3^- concentration was also high. Therefore, the air mass was possibly affected by biomass burning. The concentration of SO_4^<2>- was low around 0.02μg/m^3 in May-July, and it increased to higher than 0.1μg/m^3 in August-December. The concentrations of Al, V, Co, Ni and Pb were sometimes lower than the detection limits. Nevertheless, spikes of the highest concentrations of V, Cr, Fe, Co, Ni, Zn and Pb were recorded in August-October, while V and Fe showed second spikes in March. The enrichment factors of Cr, Ni, Zn and Pb were high during 13-20 September and 12-22 October. The E.C. concentrations in these periods were also relatively higher than before and after the sampling periods. Moreover, blizzards occurred in these periods. Report Antarc* Antarctic Antarctica Polar meteorology and glaciology National Institute of Polar Research Repository, Japan Antarctic Syowa Station |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
Antarctic aerosols collected at Syowa Station in 2001 were analyzed to investigate their seasonal variations and long-range transport of anthropogenic aerosols. The measured chemical species were elemental carbon(E.C.) and organic carbon(O.C.) using a combustion technique, SO_4^<2->, NO_3^-, Cl^-, Na^+, NH_4^+, K^+, Ca^<2+> and Mg^<2+> using ion chromatographs, and metals such as Al, V, Cr, Mn, Fe, Co, Ni, Zn and Pb using an inductively coupled plasma mass spectrometer. Total mass concentration of aerosols ranged from 0.366 to 2.72μg/m^3 and increased from winter to spring. The NO_3^- concentration was lower than 0.01μg/m^3 in March-July; in contrast, it was higher than 0.02μg/m^3 in August-November. Concentration of elemental carbon was relatively low in April-June and was high in March, October and November. In October and November, NO_3^- concentration was also high. Therefore, the air mass was possibly affected by biomass burning. The concentration of SO_4^<2>- was low around 0.02μg/m^3 in May-July, and it increased to higher than 0.1μg/m^3 in August-December. The concentrations of Al, V, Co, Ni and Pb were sometimes lower than the detection limits. Nevertheless, spikes of the highest concentrations of V, Cr, Fe, Co, Ni, Zn and Pb were recorded in August-October, while V and Fe showed second spikes in March. The enrichment factors of Cr, Ni, Zn and Pb were high during 13-20 September and 12-22 October. The E.C. concentrations in these periods were also relatively higher than before and after the sampling periods. Moreover, blizzards occurred in these periods. |
format |
Report |
author |
Hiroshi Kobayashi Keiichiro Hara Masataka Shiobara Takashi Yamanouchi Kazuo Osada Sachio Ohta |
spellingShingle |
Hiroshi Kobayashi Keiichiro Hara Masataka Shiobara Takashi Yamanouchi Kazuo Osada Sachio Ohta Seasonal variation of chemical composition of aerosols at Syowa Station, Antarctica in 2001 |
author_facet |
Hiroshi Kobayashi Keiichiro Hara Masataka Shiobara Takashi Yamanouchi Kazuo Osada Sachio Ohta |
author_sort |
Hiroshi Kobayashi |
title |
Seasonal variation of chemical composition of aerosols at Syowa Station, Antarctica in 2001 |
title_short |
Seasonal variation of chemical composition of aerosols at Syowa Station, Antarctica in 2001 |
title_full |
Seasonal variation of chemical composition of aerosols at Syowa Station, Antarctica in 2001 |
title_fullStr |
Seasonal variation of chemical composition of aerosols at Syowa Station, Antarctica in 2001 |
title_full_unstemmed |
Seasonal variation of chemical composition of aerosols at Syowa Station, Antarctica in 2001 |
title_sort |
seasonal variation of chemical composition of aerosols at syowa station, antarctica in 2001 |
publisher |
Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi/National Institute of Polar Research/National Institute of Polar Research/National Institute of Polar Research/Graduate School of Environmental Studies, Nagoya University/Graduate School of Engineering, Hokkaido University |
publishDate |
2003 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2962 http://id.nii.ac.jp/1291/00002962/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2962&item_no=1&attribute_id=18&file_no=1 |
geographic |
Antarctic Syowa Station |
geographic_facet |
Antarctic Syowa Station |
genre |
Antarc* Antarctic Antarctica Polar meteorology and glaciology |
genre_facet |
Antarc* Antarctic Antarctica Polar meteorology and glaciology |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2962 http://id.nii.ac.jp/1291/00002962/ AA1129795X Polar meteorology and glaciology, 17, 68-80(2003-11) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2962&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766250331625226240 |