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      <marc:subfield code="a">H144-13/19-2021E-PDF</marc:subfield>
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      <marc:subfield code="a">Guidelines for Canadian drinking water quality : </marc:subfield>
      <marc:subfield code="b">guideline technical document - metribuzin.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">Ottawa, ON : </marc:subfield>
      <marc:subfield code="b">Health Canada = Santé Canada, </marc:subfield>
      <marc:subfield code="c">June 2021.</marc:subfield>
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      <marc:subfield code="c">©2021</marc:subfield>
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      <marc:subfield code="a">1 online resource (41 pages) : </marc:subfield>
      <marc:subfield code="b">illustrations</marc:subfield>
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      <marc:subfield code="a">Issued also in French under title: Recommandations pour la qualité de l'eau potable au Canada : document technique - métribuzine.</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">"Pub: 210065."</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (pages 31-37).</marc:subfield>
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      <marc:subfield code="a">"Metribuzin is a pre- and post-emergent herbicide used to control broadleef weeds and grasses in agriculture. In 2018, the most recent year for which data are available, more than 100 000 kg of metribuzin (as an active ingredient) was sold in Canada. Metribuzin is released into the environment as surface runoff following agricultural spraying (particularly within two weeks of soil application), as tile drain effluent, from accidental discharge or as spray drift. It has the potential to leach into groundwater or move into surface water"--Executive summary, page 3. </marc:subfield>
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      <marc:subfield code="a">Drinking water</marc:subfield>
      <marc:subfield code="x">Standards</marc:subfield>
      <marc:subfield code="z">Canada.</marc:subfield>
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      <marc:subfield code="a">Metribuzin</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Health Canada, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
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      <marc:subfield code="t">Recommandations pour la qualité de l'eau potable au Canada : </marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.899406</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">639 KB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2021/sc-hc/H144-13-19-2021-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/publications/healthy-living/guidelines-canadian-drinking-water-quality-guideline-technical-document-metribuzin.html</marc:subfield>
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