Modeling trace elements over Athabasca oil sands region in Alberta, Canada using WRF-Chem
Modeling trace elements over Athabasca oil sands region in Alberta, Canada using WRF-Chem
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- dc.contributor.author
- Hao, Jingliang
- Chen, Yongsheng
- Zhang, Leiming
- dc.date.accepted
- 2025-03-12
- dc.date.accessioned
- 2025-06-26T19:48:15Z
- dc.date.available
- 2025-06-26T19:48:15Z
- dc.date.issued
- 2025-04-25
- dc.date.submitted
- 2024-10-18
- dc.description - en
- This study simulates the transport and deposition of eight particulate elements in the Athabasca Oil Sands Region (AOSR) in northern Alberta, Canada during 2016–2017 using WRF-Chem with a recently developed regional-scale emission database of elements as model input. Model predicted ambient concentrations were compared with measurements at three sites, and two model sensitivity tests were also conducted.
- dc.description.abstract - en
- The Athabasca Oil Sands Region (AOSR) in northern Alberta, Canada is a significant source of particulate elements, which may cause negative effects on human and ecosystem health. This study simulates the transport and deposition of eight elements (Al, Ca, Fe, K, Mn, Si, Ti, and Zn) in the AOSR during 2016-2017 using WRF-Chem with a recently developed regional-scale emission database of elements as model input. Point and area emissions of the elements were gridded in the model domain, with stack emissions also considering the plume rise. The model-measurement differences in annual concentrations of the sum of the eight elements were 23% at AMS1, 25% at AMS17, and -56% at AMS18. Modeled annual average concentrations and atmospheric deposition of individual elements ranged from 0.016 to 2.67 μg m<sup>-3</sup> (the sum total of 5.98 μg m<sup>-3</sup>) and from 2.62 to 385 mg m<sup>-2</sup>yr<sup>-1</sup> (862 mg m<sup>-2</sup>yr<sup>-1</sup>), respectively, in the central industrial area of the AOSR. The concentration and deposition decreased rapidly with distance from the center industrial area, e.g., by three orders of magnitude in areas 150 km away. Adding the three sites together, modeled total concentrations of the eight elements were 110% higher during the cold season and 29% lower during the warm season than the measured values, noting that constant emission rates were used throughout the years of 2016-2017. Two model sensitivity tests were conducted, with the first one using seasonally varying emissions and the second one replacing the default dry and wet deposition schemes in WRF-Chem with different ones found in literature, to demonstrate the magnitudesof the uncertainties in the model simulated ambient concentrations and atmospheric deposition of particulate elements and major causing factors of the uncertainties.
- dc.description.fosrctranslation - fr
- Cette étude simule le transport et le dépôt de huit éléments particulaires dans la région des sables bitumineux de l’Athabasca, dans le nord de l’Alberta, au Canada, au cours de l’année 2016–2017, en utilisant le modèle WRF-Chem avec une base de données d’émissions d’éléments à l’échelle régionale récemment développée comme entrée de modèle. Les concentrations ambiantes prévues par le modèle ont été comparées aux mesures effectuées sur trois sites, et deux essais de sensibilité du modèle ont également été réalisés.
- dc.identifier.issn
- 1879-1026
- 0048-9697
- dc.identifier.uri
- https://open-science.canada.ca/handle/123456789/3755
- dc.language.iso
- en
- dc.publisher - en
- Elsevier
- dc.relation.isreplacedby
- https://doi.org/10.1016/j.scitotenv.2025.179144
- dc.rights - en
- Open Government Licence - Canada
- dc.rights - fr
- Licence du gouvernement ouvert - Canada
- dc.rights.openaccesslevel - en
- Green
- dc.rights.openaccesslevel - fr
- Vert
- dc.rights.uri - en
- https://open.canada.ca/en/open-government-licence-canada
- dc.rights.uri - fr
- https://ouvert.canada.ca/fr/licence-du-gouvernement-ouvert-canada
- dc.subject - en
- Modelling
- Oil sands
- Air quality
- Atmospheric emissions
- dc.subject - fr
- Modélisation
- Sables bitumineux
- Qualité de l'air
- Émissions atmosphériques
- dc.subject.en - en
- Modelling
- Oil sands
- Air quality
- Atmospheric emissions
- dc.subject.fr - fr
- Modélisation
- Sables bitumineux
- Qualité de l'air
- Émissions atmosphériques
- dc.title - en
- Modeling trace elements over Athabasca oil sands region in Alberta, Canada using WRF-Chem
- dc.title.alternative - fr
- Modélisation des éléments traces dans la région des sables bitumineux de l’Athabasca (Alberta, Canada) à l’aide du modèle WRF-Chem
- dc.type - en
- Submitted manuscript
- dc.type - fr
- Manuscrit soumis
- local.acceptedmanuscript.articlenum
- 179144
- local.article.journaltitle - en
- Science of The Total Environment
- local.article.journalvolume
- 974
- local.pagination
- 24 pages, annexes
- local.peerreview - en
- No
- local.peerreview - fr
- Non
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