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    <marc:controlfield tag="003">CaOODSP</marc:controlfield>
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      <marc:subfield code="a">Acute lethality.</marc:subfield>
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      <marc:subfield code="a">[2023 edition].</marc:subfield>
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      <marc:subfield code="a">[Gatineau, Quebec] : </marc:subfield>
      <marc:subfield code="b">Environment and Climate Change Canada = Environnement et changement climatique Canada, </marc:subfield>
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      <marc:subfield code="c">©2023</marc:subfield>
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      <marc:subfield code="a">online resource</marc:subfield>
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      <marc:subfield code="a">Issued also in French under title: Létalité aiguë.</marc:subfield>
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      <marc:subfield code="a">At head of title: The Effluencer, vol. 7, Wastewater Systems Effluent Regulations.</marc:subfield>
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      <marc:subfield code="a">"EC22089"--Page 4.</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
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      <marc:subfield code="a">Effluent quality</marc:subfield>
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      <marc:subfield code="x">Testing.</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Acute toxicity testing</marc:subfield>
      <marc:subfield code="z">Canada.</marc:subfield>
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      <marc:subfield code="a">Sewerage</marc:subfield>
      <marc:subfield code="x">Law and legislation</marc:subfield>
      <marc:subfield code="z">Canada.</marc:subfield>
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      <marc:subfield code="a">Sewage disposal in rivers, lakes, etc.</marc:subfield>
      <marc:subfield code="x">Law and legislation</marc:subfield>
      <marc:subfield code="z">Canada.</marc:subfield>
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      <marc:subfield code="a">Sewage disposal in the ocean</marc:subfield>
      <marc:subfield code="x">Law and legislation</marc:subfield>
      <marc:subfield code="z">Canada.</marc:subfield>
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    <marc:datafield tag="710" ind1="1" ind2=" ">
      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Environment and Climate Change Canada, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
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      <marc:subfield code="t">Létalité aiguë.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.915461</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="794" ind1=" " ind2=" ">
      <marc:subfield code="t">Acute lethality.</marc:subfield>
      <marc:subfield code="b">(2024)</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.937519</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="856" ind1="4" ind2="0">
      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">1.37 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2024/eccc/En14-495-3-2022-eng.pdf</marc:subfield>
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      <marc:subfield code="q">HTML</marc:subfield>
      <marc:subfield code="s">N/A</marc:subfield>
      <marc:subfield code="u">https://www.canada.ca/en/environment-climate-change/services/wastewater/system-effluent-regulations-reporting/overview/acute-lethality.html</marc:subfield>
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