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Factors influencing concentrations of atmospheric speciated mercury measured at the farthest island West of South Korea.

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Title: Factors influencing concentrations of atmospheric speciated mercury measured at the farthest island West of South Korea.
Authors: Lee, Su-Hyeon1 (AUTHOR), Lee, Jae-In1 (AUTHOR), Kim, Pyung-Rae1 (AUTHOR), Kim, Dae-Young1 (AUTHOR), Jeon, Ji-Won1 (AUTHOR), Han, Young-Ji1 (AUTHOR) youngji@kangwon.ac.kr
Source: Atmospheric Environment. Sep2019, Vol. 213, p239-249. 11p.
Subject Terms: *Atmospheric mercury, *Mercury (Element), *Coal-fired power plants, *Air masses, *Biomass burning, Boundary layer (Aerodynamics)
Geographic Terms: North Korea, East Asia, South Korea
Abstract: East Asia is the largest emitter of mercury (Hg) in the world, but only a few studies of speciated Hg have been carried out in South Korea. In this study, total gaseous mercury (TGM), gaseous oxidized mercury (GOM), and particulate bound mercury (PBM) were measured at one of the most northwestern islands of South Korea. Concentrations of TGM and GOM were similar to those measured in other regions of Korea; however, PBM was found in much higher concentrations during cold months, most likely from coal and biomass burning in North Korea. Sources outside Korea significantly affected TGM and PBM, and GOM increased as air masses transported from domestic coal-burning power plants. During the warm months, GOM increased as gaseous elemental mercury (GEM) decreased when air masses were confined within the ocean area with minimal influence from anthropogenic emissions. This implies that there is an efficient process for the oxidation of GEM and GOM production in the marine boundary layer. The concentrations of ozone also decreased as an increase in GOM was observed, suggesting that halogens are primarily responsible for GEM oxidation. • East Asia has the largest emissions of Hg in the world. • Speciated Hg concentrations were measured in the most northwestern island of Korea. • GOM increased during summer when air masses were confined within the ocean area. • A concurrent decrease in ozone was observed as GOM increased. • TGM and PBM were enhanced with the possible source areas of Northeastern China. [ABSTRACT FROM AUTHOR]
Copyright of Atmospheric Environment is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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An: 138127816
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PubTypeId: academicJournal
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  Data: Factors influencing concentrations of atmospheric speciated mercury measured at the farthest island West of South Korea.
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  Data: <searchLink fieldCode="AR" term="%22Lee%2C+Su-Hyeon%22">Lee, Su-Hyeon</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lee%2C+Jae-In%22">Lee, Jae-In</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Pyung-Rae%22">Kim, Pyung-Rae</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Dae-Young%22">Kim, Dae-Young</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jeon%2C+Ji-Won%22">Jeon, Ji-Won</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Han%2C+Young-Ji%22">Han, Young-Ji</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> youngji@kangwon.ac.kr</i>
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  Data: <searchLink fieldCode="JN" term="%22Atmospheric+Environment%22">Atmospheric Environment</searchLink>. Sep2019, Vol. 213, p239-249. 11p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Atmospheric+mercury%22">Atmospheric mercury</searchLink><br />*<searchLink fieldCode="DE" term="%22Mercury+%28Element%29%22">Mercury (Element)</searchLink><br />*<searchLink fieldCode="DE" term="%22Coal-fired+power+plants%22">Coal-fired power plants</searchLink><br />*<searchLink fieldCode="DE" term="%22Air+masses%22">Air masses</searchLink><br />*<searchLink fieldCode="DE" term="%22Biomass+burning%22">Biomass burning</searchLink><br /><searchLink fieldCode="DE" term="%22Boundary+layer+%28Aerodynamics%29%22">Boundary layer (Aerodynamics)</searchLink>
– Name: SubjectGeographic
  Label: Geographic Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22North+Korea%22">North Korea</searchLink><br /><searchLink fieldCode="DE" term="%22East+Asia%22">East Asia</searchLink><br /><searchLink fieldCode="DE" term="%22South+Korea%22">South Korea</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: East Asia is the largest emitter of mercury (Hg) in the world, but only a few studies of speciated Hg have been carried out in South Korea. In this study, total gaseous mercury (TGM), gaseous oxidized mercury (GOM), and particulate bound mercury (PBM) were measured at one of the most northwestern islands of South Korea. Concentrations of TGM and GOM were similar to those measured in other regions of Korea; however, PBM was found in much higher concentrations during cold months, most likely from coal and biomass burning in North Korea. Sources outside Korea significantly affected TGM and PBM, and GOM increased as air masses transported from domestic coal-burning power plants. During the warm months, GOM increased as gaseous elemental mercury (GEM) decreased when air masses were confined within the ocean area with minimal influence from anthropogenic emissions. This implies that there is an efficient process for the oxidation of GEM and GOM production in the marine boundary layer. The concentrations of ozone also decreased as an increase in GOM was observed, suggesting that halogens are primarily responsible for GEM oxidation. • East Asia has the largest emissions of Hg in the world. • Speciated Hg concentrations were measured in the most northwestern island of Korea. • GOM increased during summer when air masses were confined within the ocean area. • A concurrent decrease in ozone was observed as GOM increased. • TGM and PBM were enhanced with the possible source areas of Northeastern China. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Atmospheric Environment is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.atmosenv.2019.05.063
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 239
    Subjects:
      – SubjectFull: Atmospheric mercury
        Type: general
      – SubjectFull: Mercury (Element)
        Type: general
      – SubjectFull: Coal-fired power plants
        Type: general
      – SubjectFull: Air masses
        Type: general
      – SubjectFull: Biomass burning
        Type: general
      – SubjectFull: Boundary layer (Aerodynamics)
        Type: general
      – SubjectFull: North Korea
        Type: general
      – SubjectFull: East Asia
        Type: general
      – SubjectFull: South Korea
        Type: general
    Titles:
      – TitleFull: Factors influencing concentrations of atmospheric speciated mercury measured at the farthest island West of South Korea.
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            NameFull: Lee, Su-Hyeon
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            NameFull: Kim, Pyung-Rae
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            NameFull: Kim, Dae-Young
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            NameFull: Jeon, Ji-Won
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            – D: 15
              M: 09
              Text: Sep2019
              Type: published
              Y: 2019
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              Value: 213
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