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    <marc:controlfield tag="008">191028e199301##bccdb   ob   f000 0 eng d</marc:controlfield>
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      <marc:subfield code="a">Perry, Keith, </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">Stratospheric ozone and ultraviolet-B radiation measurements at Saturna Island, British Columbia in 1992 / </marc:subfield>
      <marc:subfield code="c">Keith Perry, Eric Taylor.</marc:subfield>
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    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">[Vancouver] : </marc:subfield>
      <marc:subfield code="b">Atmospheric Issues &amp; Services Branch, Atmospheric Environment Service, Pacific &amp; Yukon Region, </marc:subfield>
      <marc:subfield code="c">January 1993.</marc:subfield>
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      <marc:subfield code="a">Report PAES ; </marc:subfield>
      <marc:subfield code="v">93-1</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">Cover title.</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (page [4]).</marc:subfield>
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      <marc:subfield code="a">"Stratospheric ozone depletion has become a concern due to the increasing atmospheric concentrations of ozone depleting substances. In response to this concern, the Atmospheric Environment Service has installed a Brewer Spectrophotometer at Saturna Island, B.C. (48'47", 123'08") to monitor both total column ozone and ultraviolet-B (UV-B) radiation. This paper compares total column ozone and UV-B radiation for the last half of 1992 for Saturna Island, B.C. with the 13 year(1978-1991) average"--Introduction.</marc:subfield>
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      <marc:subfield code="a">Taylor, Eric, </marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Environment Canada.</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Atmospheric Environment Service. </marc:subfield>
      <marc:subfield code="b">Pacific and Yukon Region. </marc:subfield>
      <marc:subfield code="b">Atmospheric Issues and Services Branch.</marc:subfield>
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      <marc:subfield code="a">Report PAES ;</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/En57-45-93-1-eng.pdf</marc:subfield>
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