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Inconsistencies in sulphur dioxide emissions from the Canadian oil sands and potential implications

McLinden, Chris and Adams, Cristen L.F. and Fioletov, Vitali and Griffin, Debora and Makar, Paul A. and Zhao, Xiaoyi and Kovachik, Andrew and Dickson, Nolan Marcus and Brown, Casandra and Krotkov, Nickolay and Li, Can and Theys, Nicolas and Hedelt, Pascal and Loyola, Diego (2021) Inconsistencies in sulphur dioxide emissions from the Canadian oil sands and potential implications. Environmental Research Letters, 16 (014012), pp. 1-11. Institute of Physics (IOP) Publishing. doi: 10.1088/1748-9326/abcbbb. ISSN 1748-9326.

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Official URL: https://iopscience.iop.org/article/10.1088/1748-9326/abcbbb

Abstract

atellite-derived and reported sulphur dioxide (SO2) emissions from the Canadian oil sands are shown to have been consistent up to 2013. Post-2013, these sources of emissions data diverged, with reported emissions dropping by a factor of two, while satellite-derived emissions for the region remained relatively constant, with the discrepancy (satellite-derived emissions minus reported emissions) peaking at 50 kT(SO2) yr-1 around 2016. The 2013-2014 period corresponds to when new flue-gas desulphurization units came on-line. Previous work has established a high level of consistency between at-stack SO2 emissions observations and satellite estimates, and surface monitoring network SO2 concentrations over the same multi-year period show similar trends as the satellite data, with a slight increase in concentrations post-2013. No clear explanation for this discrepancy currently exists. The implications of the discrepancy towards estimated total sulphur deposition to downwind ecosystems were estimated relative to 2013 emissions levels, with the satellite-derived values leaving the area of regional critical load exceedances of aquatic ecosystems largely unchanged from 2013 values, 335,000 km2, and reported values potentially decreasing this area to 185,000 km2.

Item URL in elib:https://elib.dlr.de/137874/
Document Type:Article
Title:Inconsistencies in sulphur dioxide emissions from the Canadian oil sands and potential implications
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
McLinden, ChrisEnvironment Climate Change Canada, Toronto, Ontario, Canadahttps://orcid.org/0000-0001-5054-1380
Adams, Cristen L.F.University of Saskatchewan, Department of Physics and Engineering PhysicsUNSPECIFIED
Fioletov, VitaliEnvironment Climate Change Canada, Toronto, Ontario, Canadahttps://orcid.org/0000-0002-2731-5956
Griffin, DeboraEnvironment Climate Change Canada, Toronto, Ontario, Canadahttps://orcid.org/0000-0002-4849-9125
Makar, Paul A.Environment Climate Change Canada, Toronto, Ontario, CanadaUNSPECIFIED
Zhao, XiaoyiEnvironment Climate Change Canada, Toronto, Ontario, CanadaUNSPECIFIED
Kovachik, AndrewEnvironment Climate Change Canada, Toronto, Ontario, CanadaUNSPECIFIED
Dickson, Nolan MarcusEnvironment Climate Change Canada, Toronto, Ontario, CanadaUNSPECIFIED
Brown, CasandraUniversity of Saskatchewan, Department of Physics and Engineering PhysicsUNSPECIFIED
Krotkov, NickolayUniv. of Maryland at Baltimore County, Baltimore, MD USAhttps://orcid.org/0000-0001-6170-6750
Li, CanNASA Goddard Space Flight Center, Greenbelt, MD 20771, USAUNSPECIFIED
Theys, NicolasBelgian Institute for Space Aeronomy, Brussels, BelgiumUNSPECIFIED
Hedelt, PascalPascal.Hedelt (at) dlr.dehttps://orcid.org/0000-0002-1752-0040
Loyola, DiegoDiego.Loyola (at) dlr.dehttps://orcid.org/0000-0002-8547-9350
Date:January 2021
Journal or Publication Title:Environmental Research Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:16
DOI :10.1088/1748-9326/abcbbb
Page Range:pp. 1-11
Publisher:Institute of Physics (IOP) Publishing
ISSN:1748-9326
Status:Published
Keywords:SO2, sulphur dioxide, oil
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):Vorhaben Spectroscopic Methods in Remote Sensing (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Hedelt, Pascal
Deposited On:23 Nov 2020 12:57
Last Modified:14 Jan 2021 13:56

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