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      <marc:subfield code="a">CaOODSP</marc:subfield>
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      <marc:subfield code="a">Ambient air particulate lead concentrations in Canada 1975-1983.</marc:subfield>
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      <marc:subfield code="a">Ottawa, Ontario, Canada : </marc:subfield>
      <marc:subfield code="b">Environment Canada, Environmental Protection Service = Environnement Canada, Service de la protection de l'environnement, </marc:subfield>
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      <marc:subfield code="c">©1985</marc:subfield>
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      <marc:subfield code="a">computer</marc:subfield>
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      <marc:subfield code="a">Environmental Protection Service report series</marc:subfield>
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      <marc:subfield code="a">Issued also in French under title: Teneurs de l'atmosphère en particules de plomb, au Canada : 1975 à 1983.</marc:subfield>
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      <marc:subfield code="a">"EPS 7/AP/15."</marc:subfield>
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      <marc:subfield code="a">"September 1985."</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.</marc:subfield>
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      <marc:subfield code="a">Lead</marc:subfield>
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      <marc:subfield code="a">Gasoline</marc:subfield>
      <marc:subfield code="x">Anti-knock and anti-knock mixtures</marc:subfield>
      <marc:subfield code="x">Environmental aspects</marc:subfield>
      <marc:subfield code="z">Canada.</marc:subfield>
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      <marc:subfield code="a">Air</marc:subfield>
      <marc:subfield code="x">Pollution</marc:subfield>
      <marc:subfield code="z">Canada</marc:subfield>
      <marc:subfield code="x">Measurement.</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Environmental Protection Service, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
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      <marc:subfield code="a">Environmental Protection Service report series.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.866031</marc:subfield>
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    <marc:datafield tag="856" ind1="4" ind2="0">
      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">932 KB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2023/eccc/en42/En42-1-7-15-eng.pdf</marc:subfield>
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