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      <marc:subfield code="a">r------</marc:subfield>
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      <marc:subfield code="a">Gregor, Dennis J., </marc:subfield>
      <marc:subfield code="d">1949- </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
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    <marc:datafield tag="245" ind1="1" ind2="0">
      <marc:subfield code="a">Trace organic chemicals in the Arctic environment : </marc:subfield>
      <marc:subfield code="b">atmospheric transport and deposition / </marc:subfield>
      <marc:subfield code="c">D.J. Gregor.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">Burlington, Ontario : </marc:subfield>
      <marc:subfield code="b">National Water Research Institute = Institut national de recherche sur les eaux, </marc:subfield>
      <marc:subfield code="c">[1991]</marc:subfield>
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      <marc:subfield code="a">1 online resource (3 unnumbered pages, 69 pages) : </marc:subfield>
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      <marc:subfield code="a">online resource</marc:subfield>
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      <marc:subfield code="a">NWRI contribution ; </marc:subfield>
      <marc:subfield code="v">no. 91-11</marc:subfield>
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      <marc:subfield code="a">Digitized edition from print [produced by Environment and Climate Change Canada].</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (pages 43-57).</marc:subfield>
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      <marc:subfield code="a">"This is an invited chapter to a book titled "Pollution of the Arctic Atmosphere", edited by W.T. Sturges of the University of Colorado at Boulder and published by Elsevier Science Publishers Ltd. Of the 10 chapters in the book, this is the only one concemed with trace organic chemicals. The chapter reviews the sources, emission processes, transport pathways and mechanisms of deposition of organochlorine pesticides, PCBs and PAHs relative to the Arctic. Although much of the atmospheric work has been conducted in Europe, actual measurements in the aquatic system (i.e., snow and surface water) is dominated by Canadian data"--Management perspective.</marc:subfield>
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      <marc:subfield code="a">Includes management perspective in French.</marc:subfield>
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      <marc:subfield code="a">Atmospheric deposition</marc:subfield>
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      <marc:subfield code="a">Organochlorine compounds</marc:subfield>
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      <marc:subfield code="a">Polychlorinated biphenyls</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
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      <marc:subfield code="a">National Water Research Institute (Canada). </marc:subfield>
      <marc:subfield code="b">Lakes Research Branch.</marc:subfield>
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      <marc:subfield code="a">National Water Research Institute (Canada)</marc:subfield>
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      <marc:subfield code="a">NWRI contribution ;</marc:subfield>
      <marc:subfield code="v">no. 91-11.</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-91-11-eng.pdf</marc:subfield>
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