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    <marc:controlfield tag="007">cr |||||||||||</marc:controlfield>
    <marc:controlfield tag="008">190327t20192019onc    #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>
      <marc:subfield code="e">rda</marc:subfield>
      <marc:subfield code="c">CaOODSP</marc:subfield>
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    <marc:datafield tag="245" ind1="0" ind2="0">
      <marc:subfield code="a">Guidelines for Canadian drinking water quality : </marc:subfield>
      <marc:subfield code="b">guideline technical document : copper.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="246" ind1="1" ind2="7">
      <marc:subfield code="a">Copper</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">Ottawa, Ontario : </marc:subfield>
      <marc:subfield code="b">Health Canada, </marc:subfield>
      <marc:subfield code="c">2019.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="4">
      <marc:subfield code="c">©2019</marc:subfield>
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      <marc:subfield code="a">computer</marc:subfield>
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      <marc:subfield code="a">"June 2019."</marc:subfield>
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      <marc:subfield code="a">Issued also in HTML format.</marc:subfield>
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      <marc:subfield code="a">"Your health and safety ... our priority"--Cover.</marc:subfield>
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    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">Issued also in French under title: Recommandations pour la qualité de l’eau potable au Canada : document technique : le cuivre.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="504" ind1=" " ind2=" ">
      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="520" ind1=" " ind2=" ">
      <marc:subfield code="a">"Copper is present in tap water principally as a result of leaching from copper-containing components of distribution and plumbing systems. Copper has been, and continues to be, broadly used in drinking water applications, including in household pipes and in fittings. This guideline technical document reviews and assesses all identified health risks associated with copper in drinking water. It assesses new studies and approaches and takes into consideration the availability of appropriate treatment technology in order to propose a maximum acceptable concentration (MAC) that is protective of human health, measurable and achievable by both municipal and residential scale treatment technologies"--Executive summary, page 1.</marc:subfield>
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      <marc:subfield code="2">gccst</marc:subfield>
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      <marc:subfield code="2">gccst</marc:subfield>
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      <marc:subfield code="2">gccst</marc:subfield>
      <marc:subfield code="a">Water quality</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Health Canada.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="775" ind1="0" ind2="8">
      <marc:subfield code="t">Recommandations pour la qualité de l’eau potable au Canada : </marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.870658</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="856" ind1="4" ind2="0">
      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">666 KB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2019/sc-hc/H144-13-13-2019-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/health-canada/services/environmental-workplace-health/reports-publications/water-quality/copper.html</marc:subfield>
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    <marc:datafield tag="986" ind1=" " ind2=" ">
      <marc:subfield code="a">Pub.: 180904</marc:subfield>
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