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      <marc:subfield code="a">Canadian environmental sustainability indicators : </marc:subfield>
      <marc:subfield code="b">boil water advisories.</marc:subfield>
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      <marc:subfield code="a">Boil water advisories</marc:subfield>
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      <marc:subfield code="a">[January 2025 edition].</marc:subfield>
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      <marc:subfield code="a">Gatineau, QC : </marc:subfield>
      <marc:subfield code="b">Environment and Climate Change Canada = Environnement et changement climatique Canada, </marc:subfield>
      <marc:subfield code="c">January 2025.</marc:subfield>
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      <marc:subfield code="c">©2025</marc:subfield>
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      <marc:subfield code="a">1 online resource (17 pages) : </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="a">Issued also in French under title: Indicateurs canadiens de durabilité de l'environnement : avis d'ébullition de l'eau.</marc:subfield>
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      <marc:subfield code="a">"Project code: EC24019."</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
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      <marc:subfield code="a">"Drinking water advisories are public health protection messages about real or potential health risks related to drinking water. These advisories are generally precautionary, meaning they are typically issued before drinking water quality problems occur. The advisories can take 3 forms: do not consume, do not use and boil water. Boil water advisories are by far the most common, representing about 98% of the drinking water advisory data each year. Therefore, this analysis looks only at this type of advisory"--page 5.</marc:subfield>
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      <marc:subfield code="a">Drinking water</marc:subfield>
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      <marc:subfield code="v">Statistics.</marc:subfield>
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      <marc:subfield code="a">Drinking water</marc:subfield>
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      <marc:subfield code="x">Safety measures</marc:subfield>
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      <marc:subfield code="a">Environmental indicators</marc:subfield>
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      <marc:subfield code="a">Statistics</marc:subfield>
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      <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">Indicateurs canadiens de durabilité de l'environnement : </marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.945088</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="t">Canadian environmental sustainability indicators : </marc:subfield>
      <marc:subfield code="b">[June 2022 edition]</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.909820</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2025/eccc/en4/En4-144-54-2025-eng.pdf</marc:subfield>
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      <marc:subfield code="q">HTML</marc:subfield>
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      <marc:subfield code="u">https://www.canada.ca/en/environment-climate-change/services/environmental-indicators/boil-water-advisories.html</marc:subfield>
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