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    Academic Journals

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• Biomass burning nitrogen dioxide emissions derived from space with TROPOMI: methodology and validation.

  Authors:Debora Griffin, Chris A. McLinden, Enrico Dammers, Cristen Adams, Chelsea E. Stockwell, Carsten Warneke, et al.From:Atmospheric Measurement Techniques (Vol. 14, Issue 12) Peer-Reviewed

  Dec. 21, 2021457 words Article Smoke from wildfires is a significant source of air pollution, which can adversely impact air quality and ecosystems downwind. With the recently increasing intensity and severity of wildfires, the threat to air quality...

• Evaluating the impact of storage-and-release on aircraft-based mass-balance methodology using a regional air-quality model.

  Authors:Sepehr Fathi, Mark Gordon, Paul A. Makar, Ayodeji Akingunola, Andrea Darlington, John Liggio, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 20) Peer-Reviewed

  Oct. 18, 2021551 words Article We investigate the potential for aircraft-based top-down emission rate retrieval over- and under-estimation using a regional chemical transport model, the Global Environmental Multiscale-Modeling Air-Quality and...

• Improving air quality model predictions of organic species using measurement-derived organic gaseous and particle emissions in a petrochemical-dominated region

  Authors:Craig A. Stroud, Paul A. Makar, Junhua Zhang, Michael D. Moran, Ayodeji Akingunola, Shao-Meng Li, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 18) Peer-Reviewed

  Sept. 25, 2018411 words Author abstract, Bri...

  This study assesses the impact of revised volatile organic compound (VOC) and organic aerosol (OA) emissions estimates in the GEM-MACH (Global Environmental Multiscale-Modelling Air Quality and CHemistry) chemical...

• Where there is smoke there is mercury: Assessing boreal forest fire mercury emissions using aircraft and highlighting uncertainties associated with upscaling emissions estimates.

  Authors:David S. McLagan, Geoff W. Stupple, Andrea Darlington, Katherine Hayden, and Alexandra SteffenFrom:Atmospheric Chemistry and Physics (Vol. 21, Issue 7) Peer-Reviewed

  Apr. 14, 2021440 words Article Emissions from biomass burning are an important source of mercury (Hg) to the atmosphere and an integral component of the global Hg biogeochemical cycle. In 2018, measurements of gaseous elemental Hg (GEM) were taken on...

• New methodology shows short atmospheric lifetimes of oxidized sulfur and nitrogen due to dry deposition.

  Authors:Katherine Hayden, Shao-Meng Li, Paul Makar, John Liggio, Samar G. Moussa, Ayodeji Akingunola, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 11) Peer-Reviewed

  June 2, 2021274 words Brief article The atmospheric lifetimes of pollutants determine their impacts on human health, ecosystems and climate, and yet, pollutant lifetimes due to dry deposition over large regions have not been determined from measurements....

• Oil sands operations as a large source of secondary-organic aerosols

  Authors:John Liggio, Shao-Meng Li, Katherine Hayden, Youssef M. Taha, Craig Stroud, Andrea Darlington, et al.From:Nature (Vol. 534, Issue 7605) Peer-Reviewed

  June 2, 20166,548 words Report 1560LWorldwide heavy oil and bitumen deposits amount to 9 trillion barrels of oil distributed in over 280 basins around the world (1), with Canada home to oil sands deposits of 1.7 trillion barrels (2). The global...

• Elucidating real-world vehicle emission factors from mobile measurements over a large metropolitan region: a focus on isocyanic acid, hydrogen cyanide, and black carbon

  Authors:Sumi N. Wren, John Liggio, Yuemei Han, Katherine Hayden, Gang Lu, Cris M. Mihele, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 23) Peer-Reviewed

  Nov. 30, 2018326 words Author abstract, Bri...

  A mobile laboratory equipped with state-of-the-art gaseous and particulate instrumentation was deployed across the Greater Toronto Area (GTA) during two seasons. A high-resolution time-of-flight chemical ionization...

• Oil sands operations as a large source of secondary organic aerosols

  Authors:John Liggio, Shao-Meng Li, Katherine Hayden, Youssef M. Taha, Craig Stroud, Andrea Darlington, et al.From:Nature (Vol. 534, Issue 7605) Peer-Reviewed

  June 2, 20167,785 words Report 1590LAuthor(s): John Liggio (corresponding author) [1]; Shao-Meng Li (corresponding author) [1]; Katherine Hayden [1]; Youssef M. Taha [2]; Craig Stroud [1]; Andrea Darlington [1]; Brian D. Drollette [3]; Mark Gordon [1];...

• Estimates of exceedances of critical loads for acidifying deposition in Alberta and Saskatchewan

  Authors:Paul A. Makar, Ayodeji Akingunola, Julian Aherne, Amanda S. Cole, Yayne-abeba Aklilu, Junhua Zhang, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 13) Peer-Reviewed

  July 13, 2018575 words Author abstract, Bri...

  Estimates of potential harmful effects on ecosystems in the Canadian provinces of Alberta and Saskatchewan due to acidifying deposition were calculated, using a 1-year simulation of a high-resolution implementation...

• Oil sands operations as a large source of secondary organic aerosols

  Authors:John Liggio, Shao-Meng Li, Katherine Hayden, Youssef M. Taha, Craig Stroud, Andrea Darlington, et al.From:Nature (Vol. 534, Issue 7605) Peer-Reviewed

  June 20168,383 words Report 1600LThe evaporation and atmospheric oxidation of low-volatility organic vapours from mined oil sands material is shown to be responsible for a large amount of secondary organic aerosol mass--which affects air quality and...

• Airborne and ground-based measurements of aerosol optical depth of freshly emitted anthropogenic plumes in the Athabasca Oil Sands Region.

  Authors:Konstantin Baibakov, Samuel LeBlanc, Keyvan Ranjbar, Norman T. O'Neill, Mengistu Wolde, Jens Redemann, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 13) Peer-Reviewed

  July 14, 2021471 words Article In this work we report the airborne aerosol optical depth (AOD) from measurements within freshly emitted anthropogenic plumes arising from mining and processing operations in the Athabasca Oil Sands Region (AOSR) in the...

• Brief report: alleviation of systemic manifestations of Castleman's disease by monoclonal anti-interleukin-6 antibody

  Authors:Joseph T. Beck, Su-Ming Hsu, John Wijdenes, Regis Bataille, Bernard Klein, David Vesole, et al.From:The New England Journal of Medicine (Vol. 330, Issue 9) Peer-Reviewed

  Mar. 3, 1994143 words Article

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• Atmospheric evolution of emissions from a boreal forest fire: the formation of highly functionalized oxygen-, nitrogen-, and sulfur-containing organic compounds.

  Authors:Jenna C. Ditto, Megan He, Tori N. Hass-Mitchell, Samar G. Moussa, Katherine Hayden, Shao-Meng Li, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 1) Peer-Reviewed

  Jan. 14, 2021318 words Brief article Forest fires are major contributors of reactive gas- and particle-phase organic compounds to the atmosphere. We used offline high-resolution tandem mass spectrometry to perform a molecular-level speciation of gas- and...

• Differences between measured and reported volatile organic compound emissions from oil sands facilities in Alberta, Canada

  Authors:Shao-Meng Li, Amy Leithead, Samar G. Moussa, John Liggio, Michael D. Moran, Daniel Wang, et al.From:Proceedings of the National Academy of Sciences of the United States (Vol. 114, Issue 19) Peer-Reviewed

  May 9, 201712,255 words Article 1610L

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• Radiative absorption enhancements due to the mixing state of atmospheric black carbon

  Authors:Christopher D. Cappa, Timothy B. Onasch, Paola Massoli, Douglas R. Worsnop, Timothy S. Bates, Eben S. Cross, et al.From:Science (Vol. 337, Issue 6098) Peer-Reviewed

  Aug. 31, 2012 Author abstract, Rep...

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• Principal component analysis of summertime ground site measurements in the Athabasca oil sands with a focus on analytically unresolved intermediate-volatility organic compounds

  Authors:Travis W. Tokarek, Charles A. Odame-Ankrah, Jennifer A. Huo, Robert McLaren, Alex K. Y. Lee, Max G. Adam, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 24) Peer-Reviewed

  Dec. 14, 2018390 words Author abstract, Bri...

  In this paper, measurements of air pollutants made at a ground site near Fort McKay in the Athabasca oil sands region as part of a multi-platform campaign in the summer of 2013 are presented. The observations...