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Ion Distributions Using H3O+ PTR-ToF-MS: Transmission Effects, Instrument-to-Instrument Variability, and Implications for Interpreting Mass Spectra from Indoor Air
AGU 2024
atmospheric sciences | 13 december 2024
Michael Link, Megan S. Claflin, Christina E. Cecel...
Proton-transfer mass spectrometry (PTR-MS) using hydronium ion (H3O+) ionization is widely used for the measurement of VOCs both indoors and outdoors....
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Radical-Driven Multiphase Oxidation of Indoor Organic Chemical Contaminants
AGU 2024
atmospheric sciences | 13 december 2024
Jonathan Abbatt, Giulia Gobbi, Will Fahy, Xinke Wa...
Aside from dietary intake, we obtain most of our exposure to chemical contaminants in indoor environments, where exposure can occur not only via inhal...
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Observations of N2O5, HONO, Cl2, and ClNO2 During the Study of Wintertime Air Pollution in Toronto (SWAPIT)
AGU 2024
atmospheric sciences | 10 december 2024
Sumi N. Wren, Jeremy J. Wentzell, Cris Mihele, Ale...
The wintertime urban atmosphere is characterized by low solar irradiance; cold temperatures; a frequently low and stable boundary layer; precipitation...
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Understanding the Gas-Phase Variability of Semi-Volatile Organic Acids in Toronto’s Wintertime Atmosphere
AGU 2024
atmospheric sciences | 09 december 2024
Olivia Driessen, Sumi Wren, Jeremy J. Wentzell, El...
Organic acids have highly varied sources and complex characteristics in the urban atmosphere. Urban air quality studies tend to focus on the summertim...
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Mechanisms and Timescales for Multiphase Chemical Aging of Wood Smoke Brown Carbon
AGU 2024
atmospheric sciences | 09 december 2024
Jonathan Abbatt, Carolyn Liu-Kang, Elijah Schnitzl...
The climate impacts of brown carbon aerosol are strongly dependent on the rates at which the particles chemical and optical properties change as they ...
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The Measured Impact of Wildfires on Ozone in Western Canada From 2001 to 2019
JOURNAL OF GEOPHYSICAL RESEARCH: ATMOSPHERES
14 february 2024
Stephan Schneider, Buai Shi, Jonathan Abbatt
The impacts on atmospheric ozone (O3) due to wildfires are difficult to characterize due to the many factors that affect O3's formation rate and th...
Differences between In-Cloud and Out-of-Cloud Composition of Individual Particles and their Submicron Mass during EPCAPE
CLOUD-AEROSOL AND AEROSOL-CLOUD-PRECIPITATION-RADIATION INTERACTIONS IN WARM CLOUDS POSTER
atmospheric sciences | 14 december 2023
Abigail Williams, Veronica Z. Berta, Sanghee Han, ...
The particles that serve as the nuclei for cloud droplets are unique in that their chemical composition both determines their activation to cloud drop...
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Atmospheric Multiphase Chemistry: Small Particles with Big Impacts on Air Quality and Climate
JACOB BJERKNES LECTURE
atmospheric sciences | 12 december 2023
Jonathan Abbatt
Reactions between gases and aerosol particles occur ubiquitously in the atmosphere, from the stratosphere where they participate in the formation of t...
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