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            <gco:CharacterString>Assess the importance of atmospheric deposition of contaminants as a contributor to ecological impacts of oil sands development and identify sources. 

               • Use snowpack measurements sampled across a gridwork to develop maps of winter-time atmospheric contaminant loadings for the region ~100 km from the major upgrading facilities 

               • Assess long-term trends in winter-time atmospheric deposition 

               • Determine the potential impact of wintertime snowpack mercury loads on tributary river water mercury concentrations (Spring Freshet) using Geographic Information System and hydrological modelling approaches

               • Compare snowpack loadings to those obtained from precipitation monitoring and compare spatial patterns to PAC air measurements obtained from passive sampling network

All data are subjects of a publication containing method details, full QA/QC, interpretations and conclusions. Citations:

A. Dastoor, A. Ryjkov, G. Kos, J. Zhang, J.L. Kirk, M. Parsons, A. Steffen. 2021. Impact of Athabasca oil sands operations on mercury levels in air and deposition. Atmospheric Chemistry and Physics 21, 12783-12807. 

L. Chibwe, D.C.G. Muir, Y. Gopalapillai, D. Shang, F. Yang, J.L. Kirk, C. Manzano, B. Atkinson, X. Wang, C. Teixeira. 2021. Long-term spatial and temporal trends, and source apportionment of polycyclic aromatic compounds in the Athabasca Oil Sands Region. Environmental Pollution 268A, 115351. 

J. Culp, I. Droppo, P. di Cenzo, A. Alexander-Trusiak, D. Baird, S. Beltaos, G. Bickerton, B. Bonsal, R. Brua, P. Chambers, Y. Dibike, N. Glozier, J.L. Kirk, L. Levesque, M. McMaster, D.C.G. Muir, J. Parrott, D. Peters, K. Pippy, J. Roy. 2021. Ecological effects and causal synthesis of oil sands activity impacts on river ecosystems: water synthesis review. Environmental Reviews 29. Doi: https://doi.org/10.1139/er-2020-0082. 

Y. Gopalapillai, J. L. Kirk, M.S. Landis, D.C.G. Muir, C.A. Cooke, C.A., A. Gleason, A. Ho, E. Kelly, D. Schindler, X. Wang, G. Lawson. 2019. Source analysis of pollutant elements in winter air deposition in the Athabasca oil sands region: A Temporal and Spatial Study. ACS Earth and Space Chemistry 38, 1656-1668. 

W. Wasiuta, J.L. Kirk, P.A. Chambers, A.C. Alexander, F.R. Wyatt, R.C. Rooney, C.A. Cooke. 2019. Accumulating mercury and methylmercury burdens in watersheds impacted by oil sands pollution. Environmental Science &amp; Technology 53, 12856-12864. 

C. Manzano, D. Muir, J. L. Kirk, C. Teixeira, M. Siu, X. Wang, J.P. Charland, D. Schindler, E. Kelly. 2016. Temporal variation in the deposition of polycyclic aromatic compounds in snow in the Athabasca Oil Sands area of Alberta. Environmental Monitoring and Assessment 188, 542. 

and

J.L. Kirk, D. Muir, A. Gleason, X, Wang, R. Frank, I. Lehnherr, F. Wrona. 2014. Atmospheric deposition of mercury and methyl mercury to landscapes and waterbodies of the Athabasca oil sands region. Environmental Science &amp; Technology 48, 73747383.</gco:CharacterString>
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                  <gmd:LocalisedCharacterString locale="#fra">Évaluer l’importance du dépôt atmosphérique des contaminants comme facteur contribuant aux impacts écologiques de la mise en valeur des sables bitumineux et déterminer les sources.

                     - Utiliser les mesures du manteau neigeux prélevé selon une grille pour élaborer des cartes des charges hivernales de contaminants atmosphériques pour la région ~ 100 km des principales installations de valorisation

                     - Évaluer les tendances à long terme des dépôts atmosphériques en hiver

                     - Déterminer l’impact potentiel des charges de mercure dans le manteau neigeux en hiver sur les concentrations de mercure dans l’eau des affluents de rivière (crues printanières) en utilisant les systèmes d’information géographique (SIG) et des méthodes de modélisation hydrologique

                     - Comparer les charges dans le manteau neigeux à celles obtenues par la surveillance des précipitations et comparer les répartitions spatiales aux mesures de CAP dans l’air obtenues à l’aide du réseau d’échantillonnage passif

Toutes les données sont une partie sous réserve d’une publication contenant les détails de la méthode, la pleine AQ/CQ, les interprétations et conclusions. Citations :

A. Dastoor, A. Ryjkov, G. Kos, J. Zhang, J.L. Kirk, M. Parsons, A. Steffen. 2021. Impact of Athabasca oil sands operations on mercury levels in air and deposition. Atmospheric Chemistry and Physics 21, 12783-12807. 

L. Chibwe, D.C.G. Muir, Y. Gopalapillai, D. Shang, F. Yang, J.L. Kirk, C. Manzano, B. Atkinson, X. Wang, C. Teixeira. 2021. Long-term spatial and temporal trends, and source apportionment of polycyclic aromatic compounds in the Athabasca Oil Sands Region. Environmental Pollution 268A, 115351. 

J. Culp, I. Droppo, P. di Cenzo, A. Alexander-Trusiak, D. Baird, S. Beltaos, G. Bickerton, B. Bonsal, R. Brua, P. Chambers, Y. Dibike, N. Glozier, J.L. Kirk, L. Levesque, M. McMaster, D.C.G. Muir, J. Parrott, D. Peters, K. Pippy, J. Roy. 2021. Ecological effects and causal synthesis of oil sands activity impacts on river ecosystems: water synthesis review. Environmental Reviews 29. Doi: https://doi.org/10.1139/er-2020-0082. 

Y. Gopalapillai, J. L. Kirk, M.S. Landis, D.C.G. Muir, C.A. Cooke, C.A., A. Gleason, A. Ho, E. Kelly, D. Schindler, X. Wang, G. Lawson. 2019. Source analysis of pollutant elements in winter air deposition in the Athabasca oil sands region: A Temporal and Spatial Study. ACS Earth and Space Chemistry 38, 1656-1668. 

W. Wasiuta, J.L. Kirk, P.A. Chambers, A.C. Alexander, F.R. Wyatt, R.C. Rooney, C.A. Cooke. 2019. Accumulating mercury and methylmercury burdens in watersheds impacted by oil sands pollution. Environmental Science &amp; Technology 53, 12856-12864. 

C. Manzano, D. Muir, J. L. Kirk, C. Teixeira, M. Siu, X. Wang, J.P. Charland, D. Schindler, E. Kelly. 2016. Temporal variation in the deposition of polycyclic aromatic compounds in snow in the Athabasca Oil Sands area of Alberta. Environmental Monitoring and Assessment 188, 542. 

et

J.L. Kirk, D. Muir, A. Gleason, X, Wang, R. Frank, I. Lehnherr, F. Wrona. 2014. Atmospheric deposition of mercury and methyl mercury to landscapes and waterbodies of the Athabasca oil sands region. Environmental Science &amp; Technology 48, 73747383.</gmd:LocalisedCharacterString>
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                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString locale="#fra">Centre de renseignements à la population</gmd:LocalisedCharacterString>
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                        </gmd:PT_FreeText>
                     </gmd:positionName>
                     <gmd:contactInfo>
                        <gmd:CI_Contact>
                           <gmd:phone>
                              <gmd:CI_Telephone>
                                 <gmd:voice xsi:type="gmd:PT_FreeText_PropertyType">
                                    <gco:CharacterString>1-800-668-6767</gco:CharacterString>
                                    <gmd:PT_FreeText>
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                                          <gmd:LocalisedCharacterString locale="#fra">1-800-668-6767</gmd:LocalisedCharacterString>
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                                 </gmd:voice>
                                 <gmd:facsimile gco:nilReason="missing">
                                    <gco:CharacterString/>
                                 </gmd:facsimile>
                              </gmd:CI_Telephone>
                           </gmd:phone>
                           <gmd:address>
                              <gmd:CI_Address>
                                 <gmd:deliveryPoint xsi:type="gmd:PT_FreeText_PropertyType">
                                    <gco:CharacterString>Fontaine Building 12th floor, 200 Sacré-Coeur Blvd.</gco:CharacterString>
                                    <gmd:PT_FreeText>
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                                          <gmd:LocalisedCharacterString locale="#fra">200 Sacré-Coeur Blvd, Édifice Fontaine 12e étage</gmd:LocalisedCharacterString>
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                                    <gco:CharacterString>Gatineau</gco:CharacterString>
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                                 <gmd:administrativeArea xsi:type="gmd:PT_FreeText_PropertyType">
                                    <gco:CharacterString>Quebec</gco:CharacterString>
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                                          <gmd:LocalisedCharacterString locale="#fra">Québec</gmd:LocalisedCharacterString>
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                                    <gco:CharacterString>K1A 0H3</gco:CharacterString>
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                                 <gmd:country xsi:type="gmd:PT_FreeText_PropertyType">
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                                          <gmd:LocalisedCharacterString locale="#fra">Canada (le)</gmd:LocalisedCharacterString>
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                                 <gmd:electronicMailAddress xsi:type="gmd:PT_FreeText_PropertyType">
                                    <gco:CharacterString>enviroinfo@ec.gc.ca</gco:CharacterString>
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                                          <gmd:LocalisedCharacterString locale="#fra">enviroinfo@ec.gc.ca</gmd:LocalisedCharacterString>
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                                 </gmd:electronicMailAddress>
                              </gmd:CI_Address>
                           </gmd:address>
                           <gmd:onlineResource>
                              <gmd:CI_OnlineResource>
                                 <gmd:linkage>
                                    <gmd:URL>https://www.canada.ca</gmd:URL>
                                 </gmd:linkage>
                                 <gmd:protocol>
                                    <gco:CharacterString>HTTPS</gco:CharacterString>
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                              </gmd:CI_OnlineResource>
                           </gmd:onlineResource>
                           <gmd:hoursOfService gco:nilReason="missing" xsi:type="gmd:PT_FreeText_PropertyType">
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                        <gmd:CI_RoleCode codeList="https://schemas.metadata.geo.ca/register/napMetadataRegister.xml#IC_90"
                                         codeListValue="RI_412">distributor; distributeur</gmd:CI_RoleCode>
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                  </gmd:CI_ResponsibleParty>
               </gmd:distributorContact>
            </gmd:MD_Distributor>
         </gmd:distributor>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://donnees.ec.gc.ca/data/substances/monitor/snow-and-wet-precipitation-oil-sands-region/?lang=en</gmd:URL>
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                              <gmd:LocalisedCharacterString locale="#fra">Les données sur la précipitations humides et de neige (Anglais)</gmd:LocalisedCharacterString>
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                        <gco:CharacterString>Dataset;CSV;eng</gco:CharacterString>
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                              <gmd:LocalisedCharacterString locale="#fra">Données;CSV;eng</gmd:LocalisedCharacterString>
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                  </gmd:CI_OnlineResource>
               </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
         </gmd:transferOptions>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://donnees.ec.gc.ca/data/substances/monitor/snow-and-wet-precipitation-oil-sands-region/?lang=fr</gmd:URL>
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                     <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
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                     <gmd:name xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Snow and Wet Precipitation Data (French)</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString locale="#fra">Les données sur la précipitations humides et de neige (Français)</gmd:LocalisedCharacterString>
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                              <gmd:LocalisedCharacterString locale="#fra">Données;CSV;fra</gmd:LocalisedCharacterString>
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                  </gmd:CI_OnlineResource>
               </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
         </gmd:transferOptions>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions/>
         </gmd:transferOptions>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions/>
         </gmd:transferOptions>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions/>
         </gmd:transferOptions>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions/>
         </gmd:transferOptions>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions>
               <gmd:onLine xlink:role="urn:xml:lang:eng-CAN">
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://data-donnees.ec.gc.ca/data/substances/monitor/snow-and-wet-precipitation-oil-sands-region/</gmd:URL>
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                     <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>View ECCC Data Mart (English)</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString locale="#fra">Voir le Dépôt de données d'ECCC (Anglais)</gmd:LocalisedCharacterString>
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                        </gmd:PT_FreeText>
                     </gmd:name>
                     <gmd:description xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Web Service;HTML;eng</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString locale="#fra">Service Web;HTML;eng</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:description>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
               <gmd:onLine xlink:role="urn:xml:lang:fra-CAN">
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://data-donnees.ec.gc.ca/data/substances/monitor/snow-and-wet-precipitation-oil-sands-region/?lang=fr</gmd:URL>
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                     <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>View ECCC Data Mart (French)</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString locale="#fra">Voir le Dépôt de données d'ECCC (Français)</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:name>
                     <gmd:description xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Web Service;HTML;fra</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString locale="#fra">Service Web;HTML;fra</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:description>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
         </gmd:transferOptions>
      </gmd:MD_Distribution>
  </gmd:distributionInfo>
</gmd:MD_Metadata>