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      <marc:subfield code="a">Canadian environmental sustainability indicators : </marc:subfield>
      <marc:subfield code="b">releases of harmful substances to water.</marc:subfield>
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      <marc:subfield code="a">Releases of harmful substances to water</marc:subfield>
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      <marc:subfield code="a">[September 2026 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>
      <marc:subfield code="c">September 2026.</marc:subfield>
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      <marc:subfield code="c">©2026</marc:subfield>
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      <marc:subfield code="a">Issued also in French under title: Indicateurs canadiens de durabilité de l'environnement : rejets de substances nocives dans l'eau.</marc:subfield>
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      <marc:subfield code="a">"EC26302"--Page 2.</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
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      <marc:subfield code="a">"The release of some substances to the environment can harm human health, wildlife and biological diversity. Some toxic substances released to water can enter the food web and accumulate in the tissues of living organisms. Exposure to these substances, even in small amounts, can be hazardous to both humans and wildlife. Mercury and its compounds, lead, inorganic cadmium compounds and inorganic arsenic compounds are naturally occurring elements and are listed as toxic under the Canadian Environmental Protection Act, 1999. The Releases of harmful substances to water indicator track releases from facilities reporting to the National Pollutant Release Inventory. The amounts presented in this indicator should not be interpreted as comprehensive totals of releases to water of these pollutants in Canada. …"--Page 5.</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
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      <marc:subfield code="t">Indicateurs canadiens de durabilité de l'environnement : </marc:subfield>
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      <marc:subfield code="t">Canadian environmental sustainability indicators : </marc:subfield>
      <marc:subfield code="b">[August 2024 edition]</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.940143</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2026/eccc/en4/En4-144-81-2026-eng.pdf</marc:subfield>
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