Embedded Files
Oct 29, 2025 - Amanda M - TBA
Oct 22, 2025 - Kevin - TBA
Oct 15, 2025 - Shanu - Langford et al. "An Unusual Winter Ozone Event in Colorado" J. Geophys. Res.-Atmos. 130(14), e2025JD043695 (2025), doi: 10.1029/2025JD043695.
Oct 8, 2025 - Dmitry - Li et al. "Direct measurement of N2O5 heterogeneous uptake coefficients on atmospheric aerosols in southwestern China and evaluation of current parameterizations" Atmos. Chem. Phys. 25, 6395 (2025), doi: 10.5194/acp-25-6395-2025.
Oct 1, 2025 - Hans - Chace et al. "Ozone Production Efficiencies in the Three Largest United States Cities from Airborne Measurements" Environ Sci. & Technol. (2025), doi: 10.1021/acs.est.5c02073.
Aug 27, 2025 - Amanda M - Chen et al. "Distribution, migration, and removal of N-containing products during polyurethane pyrolysis" J. Hazard. Mat. 453, 131406 (2023), doi: 10.1016/j.jhazmat.2023.131406.
Aug 18, 2025 - Harry - Chem 502 final presentation
Aug 15, 2025 - Harry - Chem 502 final presentation practice talk
Aug 13, 2025 - Kevin - González-Sánchez et al. "On the importance of multiphase photolysis of organic nitrates on their global atmospheric removal" Atmos. Chem. Phys. 23, 5851-5866 (2023), doi: 10.5194/acp-23-5851-2023.
Aug 11, 2025 - cancelled
Aug 6, 2025 - cancelled
July 30, 2025 - cancelled
July 23, 2025 - cancelled
July 16, 2025 - Shanu - Suzuki et al. "Comparison of laser-induced fluorescence and chemiluminescence measurements of NO2 at an urban site" Atmos. Environm. 45(34), 6233-6240 (2011), doi: 10.1016/j.atmosenv.2011.07.065.
July 9, 2025 - Dmitry - Zhao et al. "Mechanism-based structure-activity relationship investigation on hydrolysis kinetics of atmospheric organic nitrates" Npj Climate and Atmospheric Science 6, 192 (2023), doi: 10.1038/s41612-023-00517-w.
July 2, 2025 - no meeting
June 25, 2025 - no meeting
June 11, 2025 - Amanda M - "Total non-methane organic carbon measurement by conversion to CO2 on heated manganese- and platinum-oxide (MnOx and PtOx) surfaces", practice talk for CSC 2025.
June 4, 2025 - Kevin - "Determination of octanol-air (KOA) and octanol-water (KOW ) partition coefficients of isopropyl and isobutyl nitrate", practice talk for CSC 2025.
May 28, 2025 - Hans - "Vinyl-PAN: An air pollutant in biomass burning plumes", practice talk
May 14, 2025 - Shanu - "Quantification of atmospheric odd nitrogen reservoir species at the Calgary Central air quality station", practice talk for the CPANS annual conference.
May 7, 2025 - Dmitry - Sun et al.: "Seasonal variation and origins of C1–C5 alkyl nitrates: A year-long study at a Hong Kong coastal site" Atmospheric Environment 338, 120824, doi: 10.1016/j.atmosenv.2024.120824.
Apr 7, 2025 - Joey - "Measurements of total nitrogen in Alberta poultry barns", practice talk for M.Sc. defense.
Mar 24, 2025 - Amanda G - "Investigation of the physical properties of peroxyacrylic nitric anhydride using gas chromatography with electron capture detection", practice talk for M.Sc. defense.
Mar 17, 2025 - cancelled
Mar 10, 2025 - Shanu - Alam et al. "Interference from alkenes in chemiluminescent NOx measurements" Atmos. Meas. Tech. 13(11), 5977-5991 (2020), doi: 10.5194/amt-13-5977-2020.
Mar 3, 2025 - cancelled
Feb 24, 2025 - Hans - Norman et al. "Exploring the processes controlling secondary inorganic aerosol: evaluating the global GEOS-Chem simulation using a suite of aircraft campaigns" Atmos. Chem. Phys. 25(2), 771-795 (2025), doi: 10.5194/acp-25-771-2025.
Feb 10, 2025 - Amanda M - Wei et al: "Recycle or Not? An Exploration of Microplastic Generation During Plastic Processing via a Local Case Study" Environ. Sci. & Technol. 58(48), 21374-83 (2024), doi: 10.1021/acs.est.4c07430.
Feb 3, 2025 - Kevin - Lambe et al. "Gas-phase nitrate radical generation via irradiation of aerated ceric ammonium nitrate mixtures" Atmos. Chem. Phys. 23(21), 13869-13882 (2023), doi: 10.5194/acp-23-13869-2023.
Jan 27, 2025 - Dmitry - Wüst et al. "Influence of ambient NO and NO2 on the quantification of total peroxy nitrates (∑PNs) and total alkyl nitrates (∑ANs) by thermal dissociation cavity ring-down spectroscopy (TD-CRDS)" Atmos. Meas. Tech. Disc. (2024), https://egusphere.copernicus.org/preprints/2024/egusphere-2024-3694/
Dec 9, 2024 - Amanda G - Hu et al. "Understanding summertime peroxyacetyl nitrate (PAN) formation and its relation to aerosol pollution: Insights from high-resolution measurements and modeling" Atmos. Chem. Phys. Disc. (2024), doi: 10.5194/egusphere-2024-2631.
Dec 2, 2024 - Shanu - Sommariva et al. "Factors Influencing the Formation of Nitrous Acid from Photolysis of Particulate Nitrate" J. Phys. Chem. A 127(44), 9302-9310 (2023), doi: 10.1021/acs.jpca.3c03853.
Nov 18, 2024 - Amanda G - cancelled due to weather.
Oct 28, 2024 - Dmitry - Yang et al. "Important yet Overlooked HONO Source from Aqueous-phase Photochemical Oxidation of Nitrophenols" ES&T 58(35), 15722–15731 (2024), doi: 10.1021/acs.est.4c05048.
Oct 16, 2024 - Kevin - Ye et al. "A Method to Measure Total Gaseous Fluorine" Environm. Sci. & Technol. Lett. asap (2024), doi: 10.1021/acs.estlett.4c00553.
Oct 2, 2024 - Joey - Song et al. "Oxidation of Ammonia in Water Microdroplets Produces Nitrate and Molecular Hydrogen" ES&T asap (2024), doi: 10.1021/acs.est.4c04568.
Sept 18, 2024 - Hans - Cowan et al. "Assessing the bias of molybdenum catalytic conversion in the measurement of NO2 in rural air quality networks" Atmos. Environm. 322, 120375 (2024), doi: 10.1016/j.atmosenv.2024.120375.
Aug 22, 2024 - Amanda M - Stipe et al. "Inverted co-flow diffusion flame for producing soot" Rev. Sci. Instrum. 76, 023908 (2005), doi: 10.1063/1.1851492.
Aug 15, 2024 - Kay - Le et al. "Air-Octanol partitioning of isopropyl and isobutyl nitrate" (2024).
Aug 8, 2024 - Shanu - Bailey et al. "A Portable Nitrogen Dioxide Instrument Using Cavity-Enhanced Absorption Spectroscopy" Atmos. Meas. Tech. Disc. (2024), doi: 10.5194/amt-2024-61.
No group meetings July 25 and Aug 1.
July 18, 2024 - Amanda G - Pollack et al. "Observations of ozone, acyl peroxy nitrates, and their precursors during summer 2019 at Carlsbad Caverns National Park, New Mexico" J. Air Waste Manag. Assoc. 73, 951-968 (2023), doi: 10.1080/10962247.2023.2271436.
July 11, 2024 - Kevin - De Haan et al. - "Brown Carbon Aerosol Formation by Multiphase Catechol Photooxidation in the Presence of Soluble Iron" ACS EST Air (2024), doi: 10.1021/acsestair.4c00045.
July 4, 2024 - Joey - Tiszenkel et al. "Urban Ammonia and Amines in Houston, Texas" Atmos. Chem. Phys. Disc. (2024), doi: 10.5194/egusphere-2024-1230.
June 27, 2024 - Hans - Clark and Allen "Interfacial carbonyl groups of propylene carbonate facilitate the reversible binding of nitrogen dioxide" Phys. Chem. Chem. Phys. 26, 15733 (2024), doi: 10.1039/d4cp01382d.
June 20, 2024 - Amanda M - Rauber et al. "An optimised organic carbon ∕ elemental carbon (OC ∕ EC) fraction separation method for radiocarbon source apportionment applied to low-loaded Arctic aerosol filters" Atmos. Meas. Tech. 16, 825-844 (2023), doi: 10.5194/amt-16-825-2023.
June 13, 2024 - Kay - Harrison, M. A. J., J. N. Cape, and M. R. Heal "Experimentally determined Henry's Law coefficients of phenol, 2-methylphenol and 2-nitrophenol in the temperature range 281-302 K" Atmos. Environm. 36(11), 1843-1851 (2002), doi:10.1016/s1352-2310(02)00137-1.
June 6, 2024 - Shanu - Lin et al. "A three-channel thermal dissociation cavity ring-down spectrometer for simultaneous measurement of ambient total peroxy nitrates, total alkyl nitrates, and NO2" Talanta 270, 125524 (2024), doi: 10.1016/j.talanta.2023.125524.
May 30, 2024 - Amanda G - Zhai et al. "Transpacific Transport of Asian Peroxyacetyl Nitrate (PAN) Observed from Satellite: Implications for Ozone" Environ. Sci. Technol. (2024), doi: 10.1021/acs.est.4c01980.
May 23, 2024 - Kevin - Edwards et al. "Effects of Nitrogen Oxides on the Production of Reactive Oxygen Species and Environmentally Persistent Free Radicals from α-Pinene and Naphthalene Secondary Organic Aerosols" J. Phys. Chem. A 126, 7361-7372 (2022), doi: 10.1021/acs.jpca.2c05532.
May 16, 2024 - Joey - Kim et al. "The Comparisons of Real-time Ammonia Adsorption Measurement in Varying Inlet Tubes and the Different Ammonia Measurement Methods in the Atmosphere" Asian J. Atmos. Environ. 15, 2021139 (2021), doi: 10.5572/ajae.2021.139.
May 9, 2024 - Hans - Ohara et al. "Improved continuous measurement system for atmospheric total peroxy and total organic nitrate under the high NOx condition" Rev. Sci. Instrum. 95, 045101 (2024), doi: 10.1063/5.0172219.
May 2, 2024 - Amanda M - Yang and Fleming "Estimation of atmospheric total organic carbon (TOC) – paving the path towards carbon budget closure" Atmos. Chem. Phys. 19, 459-471 (2019), doi: 10.5194/acp-19-459-2019.
April 25, 2024 - Shanu - Finkenzeller, H., and Volkamer, R. "O2–O2 CIA in the gas phase: Cross-section of weak bands, and continuum absorption between 297–500 nm, J. Quant. Spectrosc. Radiat. Transfer 279, 108063 (2022), doi: 10.1016/j.jqsrt.2021.108063.
April 18, 2024 - Anais and Erika - Chem 502 final presentation practice talk.
April 11, 2024 - cancelled.
April 4, 2024 - Amanda G - Caravan et al. "Observational evidence for Criegee intermediate oligomerization reactions relevant to aerosol formation in the troposphere", Nat. Geosci. 17, 219-226 (2024), doi: 10.1038/s41561-023-01361-6.
Mar 28, 2024 - cancelled
Mar 21, 2024 - Joey - Alberdi et al. "Ammonia and greenhouse gas emissions from an enriched cage laying hen facility" Biosystems Engineering 144, 1-12 (2016), doi: 10.1016/j.biosystemseng.2016.01.009.
Mar 14, 2024 - Hans - Li et al. "Revisiting the Ultraviolet Absorption Cross Section of Gaseous Nitrous Acid (HONO): New Insights for Atmospheric HONO Budget" Environ. Sci. Technol. 58(9), 4247-4256 (2024), doi: 10.1021/acs.est.3c08339.
Mar 7, 2024 - Shanu - Landis and Edgerton "Field intercomparison of continuous ambient FRM and FEM NO2 instruments in the Athabasca Oil Sands Region, Alberta, Canada and the potential impact on ambient regulatory compliance." Journal of the Air & Waste Management Association 74(1), 11-24 (2024), doi: 10.1080/10962247.2023.2279169.
Feb 29, 2024 - Joey - He et al. "Total organic carbon measurements reveal major gaps in petrochemical emissions reporting" Science 383(6681), 426-432 (2024), doi: 10.1126/science.adj6233.
Feb 22, 2024 - Reading week - no meeting
Feb 15, 2024 - Amanda - Färber et al. "Impact of temperature-dependent non-PAN peroxynitrate formation, RO2NO2, on nighttime atmospheric chemistry." Physical Chemistry Chemical Physics 26, 5183-5194 (2024), doi: 10.1039/d3cp04163h.
Feb 8, 2024 - Hans - AGU debrief
Feb 1, 2024 - Shanu - Zhang et al., Concentrations and source changes of HONO during Covid-19 lockdown in Beijing, EGU Sphere, https://doi.org/10.5194/egusphere-2023-3139.
Jan 25, 2024 - Amanda - AGU debrief
Jan 18, 2024 - Joey III - see Nov 28, 2023
Dec 5, 2023 - Anais or Erika - TBA
Nov 28, 2023 - Joey - Applying the analysis presented by Liang et al. "Ammonia emissions from U.S. laying hen houses in Iowa and Pennsylvania" Transactions of the ASAE 48(5), 1927-1941 (2005), doi: 10.13031/2013.20002 to my own data.
Nov 21, 2023 - Shanu - Liu et al. "Resolving the Formation Mechanism of HONO via Ammonia-Promoted Photosensitized Conversion of Monomeric NO2 on Urban Glass Surfaces" J. Am. Chem. Soc. 145(21), 11488-11493 (2023), doi: 10.1021/jacs.3c02067.
Nov 7, 2023 - Joey - cancelled.
Oct 31, 2023 - Amanda - Zang et al. "Direct probing of acylperoxy radicals during ozonolysis of α-pinene: constraints on radical chemistry and production of highly oxygenated organic molecules" Atmos. Chem. Phys. 23(19), 12691-12705 (2023), doi: 10.5194/acp-23-12691-2023.
Oct 24, 2023 - Hans - Ricker et al. "Reduction and Photoreduction of NO2 in Humic Acid Films as a Source of HONO, ClNO, N2O, NOx, and Organic Nitrogen" ACS Earth and Space Chemistry 6, 3066-3077 (2022), doi: 10.1021/acsearthspacechem.2c00282.
Oct 10, 2023 - Shanu - Ge et al. "Seasonality of nitrous acid near an industry zone in the Yangtze River Delta region of China: Formation mechanisms and contribution to the atmospheric oxidation capacity" Atmos. Environm. 251, 118420 (2021), doi: 10.1016/j.atmosenv.2021.118420.
Oct 3, 2023 - Joey - Liang et al. "Ammonia emissions from U.S. laying hen houses in Iowa and Pennsylvania" Transactions of the ASAE 48(5), 1927-1941 (2005), doi: 10.13031/2013.20002.
Sept 26, 2023 - Amanda - Zhang et al. "A quantification method for peroxyacetyl nitrate (PAN) using gas chromatography (GC) with a non-radioactive pulsed discharge detector (PDD)" Atmos. Environm. 179, 23-30 (2018), doi: 10.1016/j.atmosenv.2018.02.008.
Sept 19, 2023 - Hans - Results from the FOOBAR campaign
Aug 29, 2023 (Tu) Shanu - Is the ocean surface a source of nitrous acid (HONO) in the marine boundary layer?
https://acp.copernicus.org/articles/21/18213/2021/
Aug 17, 2023 (R) Joey 08:30 AM - Improvement of online monitoring technology based on the Berthelot reaction and long path absorption photometer for the measurement of ambient NH3
https://amt.copernicus.org/preprints/amt-2023-33/
Aug 14, 2023 (Mo) Amanda - Photolysis of Gas-Phase Atmospherically Relevant Monoterpene-Derived Organic Nitrates
https://pubs.acs.org/doi/10.1021/acs.jpca.2c04307
Aug 10, 2023 (R) Hans - Pandemic restrictions in 2020 highlight the significance of non-road NOx sources in central London
https://acp.copernicus.org/articles/23/2315/2023/
July 31, 2023 (Mo) Kevin - A flow-through passive sampler for microplastics in air
https://pubs.acs.org/doi/10.1021/acs.est.2c07016
July 24, 2023 (Mo) Shanu - HONO Measurement by Catalytic Conversion to NO on Nafion Surfaces
https://pubs-acs-org.ezproxy.lib.ucalgary.ca/doi/full/10.1021/acs.est.2c05944
July 18, 2023 (Tu) Amanda - Measurements of Hydroxyl Radical Concentrations during Indoor Cooking Events: Evidence of an Unmeasured Photolytic Source of Radicals
https://pubs-acs-org.ezproxy.lib.ucalgary.ca/doi/full/10.1021/acs.est.2c05756
July 4, 2023 (Tu) Joey - Emission factors of NH3 and NHx for wildfires and agricultural fires in the United States
https://acp.copernicus.org/articles/23/2331/2023/
June 27, 2023 (Tu) Hans - Roadside NO2/NOx and primary NO2 from individual vehicles
https://doi.org/10.1016/j.atmosenv.2022.119562
June 20, 2023 (Tu) Kevin - Influence of Wildfire on Urban Ozone: An Observationally Constrained Box Modeling Study at a Site in the Colorado Front Range
https://pubs.acs.org/doi/10.1021/acs.est.2c06157
June 15, 2023 (R) Shanu - Improving the representation of HONO chemistry in CMAQ and examining its impact on haze over China
https://acp.copernicus.org/articles/21/15809/2021/
May 31, 2023 (Wd) - Amanda - Furoyl peroxynitrate (fur-PAN), a product of VOC–NOx photochemistry from biomass burning emissions: photochemical synthesis, calibration, chemical characterization, and first atmospheric observations
https://doi.org/10.1039/D2EA00068G
May 24, 2023 (Wd) Joey - Chronic Exposure to PM2.5, Nitrate, Sulfate, and Ammonium Causes Respiratory System Impairments in mice https://pubs.acs.org/doi/10.1021/acs.est.0c05814
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