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Pollution with trace elements and rare-earth metals in the lower course of Syr Darya River and Small Aral Sea, Kazakhstan.

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Title: Pollution with trace elements and rare-earth metals in the lower course of Syr Darya River and Small Aral Sea, Kazakhstan.
Authors: Rzymski, Piotr1 (AUTHOR) rzymskipiotr@ump.edu.pl, Klimaszyk, Piotr2 (AUTHOR), Niedzielski, Przemysław3 (AUTHOR), Marszelewski, Włodzimierz4 (AUTHOR), Borowiak, Dariusz5,6 (AUTHOR), Nowiński, Kamil5 (AUTHOR), Baikenzheyeva, Ainur7 (AUTHOR), Kurmanbayev, Rakhat7 (AUTHOR), Aladin, Nikolai8 (AUTHOR)
Source: Chemosphere. Nov2019, Vol. 234, p81-88. 8p.
Subjects: Rare earth metals, World Health Organization, Trace elements, Water pollution, Pollution, Surface contamination, Metals
Geographic Terms: Kazakhstan
Abstract: Over recent decades the Aral Sea has faced a major human-driven regression leading to environmental, economic and health impacts. Previous research has indicated that its region may be highly polluted yet there is little recent data to assess the scale or nature of the pollution. The present study investigated the concentration of elements for which the World Health Organization (WHO) has established guideline levels (Al, As, B, Ba, Cd, Cr, Cu, Ni, Pb, Sb) as well as 16 rare-earth elements (Ce, Eu, Er, Gd, La, Nd, Pr, Sc, Sm, Dy, Ho, Lu, Tb, Tm, Y, Yb) in the Small Aral Sea (SAS) and its inflow, the Syr Darya River (SDR). The latter displayed increased levels of Al (mean 851 μg L−1), As (35.8 μg L−1), Cd (2.8 μg L−1), Pb (10.1 μg L−1) and U (4.9 μg L−1), exceeding the guideline limits at selected sites. In the SAS these limits were exceeded at certain locations in the case of As and U. The total mean concentration of REEs in the SDR and SAS amounted to 22.6 and 61.7 μg L−1, respectively, with Pr, Ce and Nd constituting the greatest share. The concentrations of B, Ba Cr, Cu, Se and Ni were below the WHO guideline levels at all studied sites while Sb and Hg were always below detection limits. This research provides an updated status on the levels of contamination of the surface waters in the ecological disaster zone of the Aral Sea in Kazakhstan. • Pollution of Syr Darya River (SDR) and Small Aral Sea (SAS) was studied. • Waters of SDR exceeded WHO guideline values for Al, As, Cd, Pb and U. • No pollution with Hg and Sb was detected. • Concentrations of B, Ba, Cr, Cu, Ni and Se fall below WHO guideline levels. • Increased levels of REEs, particularly Pr, Ce and Nd, were found in SDR and SAS. [ABSTRACT FROM AUTHOR]
Copyright of Chemosphere 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.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 138479509
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
  Group: Ti
  Data: Pollution with trace elements and rare-earth metals in the lower course of Syr Darya River and Small Aral Sea, Kazakhstan.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Rzymski%2C+Piotr%22">Rzymski, Piotr</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> rzymskipiotr@ump.edu.pl</i><br /><searchLink fieldCode="AR" term="%22Klimaszyk%2C+Piotr%22">Klimaszyk, Piotr</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Niedzielski%2C+Przemysław%22">Niedzielski, Przemysław</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Marszelewski%2C+Włodzimierz%22">Marszelewski, Włodzimierz</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Borowiak%2C+Dariusz%22">Borowiak, Dariusz</searchLink><relatesTo>5,6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nowiński%2C+Kamil%22">Nowiński, Kamil</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Baikenzheyeva%2C+Ainur%22">Baikenzheyeva, Ainur</searchLink><relatesTo>7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kurmanbayev%2C+Rakhat%22">Kurmanbayev, Rakhat</searchLink><relatesTo>7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Aladin%2C+Nikolai%22">Aladin, Nikolai</searchLink><relatesTo>8</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Chemosphere%22">Chemosphere</searchLink>. Nov2019, Vol. 234, p81-88. 8p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Rare+earth+metals%22">Rare earth metals</searchLink><br /><searchLink fieldCode="DE" term="%22World+Health+Organization%22">World Health Organization</searchLink><br /><searchLink fieldCode="DE" term="%22Trace+elements%22">Trace elements</searchLink><br /><searchLink fieldCode="DE" term="%22Water+pollution%22">Water pollution</searchLink><br /><searchLink fieldCode="DE" term="%22Pollution%22">Pollution</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+contamination%22">Surface contamination</searchLink><br /><searchLink fieldCode="DE" term="%22Metals%22">Metals</searchLink>
– Name: SubjectGeographic
  Label: Geographic Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Kazakhstan%22">Kazakhstan</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Over recent decades the Aral Sea has faced a major human-driven regression leading to environmental, economic and health impacts. Previous research has indicated that its region may be highly polluted yet there is little recent data to assess the scale or nature of the pollution. The present study investigated the concentration of elements for which the World Health Organization (WHO) has established guideline levels (Al, As, B, Ba, Cd, Cr, Cu, Ni, Pb, Sb) as well as 16 rare-earth elements (Ce, Eu, Er, Gd, La, Nd, Pr, Sc, Sm, Dy, Ho, Lu, Tb, Tm, Y, Yb) in the Small Aral Sea (SAS) and its inflow, the Syr Darya River (SDR). The latter displayed increased levels of Al (mean 851 μg L−1), As (35.8 μg L−1), Cd (2.8 μg L−1), Pb (10.1 μg L−1) and U (4.9 μg L−1), exceeding the guideline limits at selected sites. In the SAS these limits were exceeded at certain locations in the case of As and U. The total mean concentration of REEs in the SDR and SAS amounted to 22.6 and 61.7 μg L−1, respectively, with Pr, Ce and Nd constituting the greatest share. The concentrations of B, Ba Cr, Cu, Se and Ni were below the WHO guideline levels at all studied sites while Sb and Hg were always below detection limits. This research provides an updated status on the levels of contamination of the surface waters in the ecological disaster zone of the Aral Sea in Kazakhstan. • Pollution of Syr Darya River (SDR) and Small Aral Sea (SAS) was studied. • Waters of SDR exceeded WHO guideline values for Al, As, Cd, Pb and U. • No pollution with Hg and Sb was detected. • Concentrations of B, Ba, Cr, Cu, Ni and Se fall below WHO guideline levels. • Increased levels of REEs, particularly Pr, Ce and Nd, were found in SDR and SAS. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Chemosphere 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:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.chemosphere.2019.06.036
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 8
        StartPage: 81
    Subjects:
      – SubjectFull: Rare earth metals
        Type: general
      – SubjectFull: World Health Organization
        Type: general
      – SubjectFull: Trace elements
        Type: general
      – SubjectFull: Water pollution
        Type: general
      – SubjectFull: Pollution
        Type: general
      – SubjectFull: Surface contamination
        Type: general
      – SubjectFull: Metals
        Type: general
      – SubjectFull: Kazakhstan
        Type: general
    Titles:
      – TitleFull: Pollution with trace elements and rare-earth metals in the lower course of Syr Darya River and Small Aral Sea, Kazakhstan.
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            NameFull: Rzymski, Piotr
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            NameFull: Klimaszyk, Piotr
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            NameFull: Niedzielski, Przemysław
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            NameFull: Borowiak, Dariusz
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            NameFull: Nowiński, Kamil
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            – D: 01
              M: 11
              Text: Nov2019
              Type: published
              Y: 2019
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              Value: 234
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            – TitleFull: Chemosphere
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