<?xml version="1.0" encoding="UTF-8"?><marc:collection xmlns:marc="http://www.loc.gov/MARC21/slim">
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    <marc:controlfield tag="001">9.948468</marc:controlfield>
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    <marc:controlfield tag="007">cr |n|||||||||</marc:controlfield>
    <marc:controlfield tag="008">250226s1984    oncbda  ob   f000 0 eng d</marc:controlfield>
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      <marc:subfield code="a">CaOODSP</marc:subfield>
      <marc:subfield code="b">eng</marc:subfield>
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      <marc:subfield code="a">En57-64/85-2E-PDF</marc:subfield>
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      <marc:subfield code="a">MacTavish, D. C., </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">Data summary of air chemistry measurements for the Nanticoke II shoreline diffusion study June 1-14, 1982 / </marc:subfield>
      <marc:subfield code="c">by D.C. MacTavish, K.G. Anlauf, H.A. Wiebe.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">Downsview, Ontario : </marc:subfield>
      <marc:subfield code="b">Atmospheric Chemistry, Criteria &amp; Standards Division, Air Quality and Inter-Environmental Research Branch, Atmospheric Environment Service, </marc:subfield>
      <marc:subfield code="c">1984.</marc:subfield>
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      <marc:subfield code="a">1 online resource (217 pages) : </marc:subfield>
      <marc:subfield code="b">maps, charts, illustrations.</marc:subfield>
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      <marc:subfield code="a">text</marc:subfield>
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      <marc:subfield code="a">computer</marc:subfield>
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      <marc:subfield code="a">online resource</marc:subfield>
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      <marc:subfield code="2">rdacarrier</marc:subfield>
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      <marc:subfield code="a">Report AQRB ;</marc:subfield>
      <marc:subfield code="v">85-002-A</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">Digitized edition from print [produced by Environment and Climate Change Canada].</marc:subfield>
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    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">"Completed November 1984."</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="504" ind1=" " ind2=" ">
      <marc:subfield code="a">Includes bibliographical references (pages 200-202).</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="520" ind1="3" ind2=" ">
      <marc:subfield code="a">"Measurements were made of atmospheric aerosol constituents, nitric acid, ammonia, peroxyacetyl nitrate, ozone and sulphur dioxide during June 1-14, 1982 at a rural site near Simcoe, Ontario. Three methods for measuring ambient gaseous nitric acid and two methods for the measurement of particulate nitrate and ammonium were compared. Furthermore, the data was analyzed for relationships among chemical species, diurnal variations of HNO3, PAN and O3 and correlation of concentrations with air mass origin"--Abstract.</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Air</marc:subfield>
      <marc:subfield code="x">Pollution</marc:subfield>
      <marc:subfield code="z">Ontario</marc:subfield>
      <marc:subfield code="z">Nanticoke</marc:subfield>
      <marc:subfield code="x">Observations.</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Air</marc:subfield>
      <marc:subfield code="x">Pollution</marc:subfield>
      <marc:subfield code="x">Measurement.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Aerosols</marc:subfield>
      <marc:subfield code="x">Measurement.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Atmospheric diffusion</marc:subfield>
      <marc:subfield code="z">Ontario</marc:subfield>
      <marc:subfield code="z">Nanticoke.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Air</marc:subfield>
      <marc:subfield code="x">Pollution</marc:subfield>
      <marc:subfield code="z">Ontario</marc:subfield>
      <marc:subfield code="z">Nanticoke</marc:subfield>
      <marc:subfield code="x">Observations.</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Air</marc:subfield>
      <marc:subfield code="x">Pollution</marc:subfield>
      <marc:subfield code="x">Mesure.</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Aérosols</marc:subfield>
      <marc:subfield code="x">Mesure.</marc:subfield>
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      <marc:subfield code="a">Diffusion atmosphérique</marc:subfield>
      <marc:subfield code="z">Ontario</marc:subfield>
      <marc:subfield code="z">Nanticoke.</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Air Quality and Inter-Environmental Research Branch, </marc:subfield>
      <marc:subfield code="e">issuing body.</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="e">issuing body.</marc:subfield>
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    <marc:datafield tag="830" ind1="#" ind2="0">
      <marc:subfield code="a">Report (Canada. Air Quality and Inter-Environmental Research Branch)</marc:subfield>
      <marc:subfield code="v">85-002-A.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.941851</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">6953 KB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2025/eccc/en57/En57-64-85-2-eng.pdf</marc:subfield>
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