Abigail R. Koss
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View article: Efficient Pollination Stinks: Corpse Flowers Use Floral Trapping and Persistent Emissions
Efficient Pollination Stinks: Corpse Flowers Use Floral Trapping and Persistent Emissions Open
Flowering corpse plants attract pollinating carrion insects through pungent, nocturnal odors. Female flowers primarily emit organosulfur, including ∼12gS/hour as methanethiol with mixing ratios comparable to landfills; male emissions are s…
View article: Methane and Ethane Emission Rates, Intensities, and Trends: Aircraft Mass Balance Insights over the Denver-Julesburg Basin, Fall 2021
Methane and Ethane Emission Rates, Intensities, and Trends: Aircraft Mass Balance Insights over the Denver-Julesburg Basin, Fall 2021 Open
View article: A point-of-need framework for illicit drug identification with high-resolution mass spectrometry
A point-of-need framework for illicit drug identification with high-resolution mass spectrometry Open
The continually evolving drug landscape, with novel synthetic drugs and unique compositions, necessitates the need to advance technologies, data analysis methods, and data accessibility for compound detection and identification. Providing …
View article: Investigating non-inferiority of internet-delivered versus face-to-face cognitive behavioural therapy for insomnia (CBT-I): a randomised controlled trial (iSleep well)
Investigating non-inferiority of internet-delivered versus face-to-face cognitive behavioural therapy for insomnia (CBT-I): a randomised controlled trial (iSleep well) Open
View article: In-line Thermal Desorption and Dielectric Barrier Discharge Ionization for Rapid Mass Spectrometry Detection of Explosives
In-line Thermal Desorption and Dielectric Barrier Discharge Ionization for Rapid Mass Spectrometry Detection of Explosives Open
Thermal desorption (TD) of wipe-based samples was coupled with an in-line dielectric barrier discharge ionization (DBDI) source and rugged compact time-of-flight mass spectrometer (MS) for the detection of explosives, propellants, and post…
View article: Multi-day photochemical evolution of organic aerosol from biomass burning emissions
Multi-day photochemical evolution of organic aerosol from biomass burning emissions Open
Our work highlights how organic compounds in smoke particles will undergo physical and chemical transformations in the presence of sunlight as the smoke is transported over long distances.
View article: Sources of Formaldehyde in U.S. Oil and Gas Production Regions
Sources of Formaldehyde in U.S. Oil and Gas Production Regions Open
We analyzed observational and model data to study the sources of formaldehyde over oil and gas production regions and to investigate how these observations may be used to constrain oil and gas volatile organic compound (VOC) emissions. The…
View article: Measurements of volatile organic compounds in ambient air by gas-chromatography and real-time Vocus PTR-TOF-MS: calibrations, instrument background corrections, and introducing a PTR Data Toolkit
Measurements of volatile organic compounds in ambient air by gas-chromatography and real-time Vocus PTR-TOF-MS: calibrations, instrument background corrections, and introducing a PTR Data Toolkit Open
Volatile organic compound (VOC) emissions and subsequent oxidation contribute to the formation of secondary pollutants and poor air quality in general. As more VOCs at lower mixing ratios have become the target of air quality investigation…
View article: Evolution of organic carbon in the laboratory oxidation of biomass-burning emissions
Evolution of organic carbon in the laboratory oxidation of biomass-burning emissions Open
Biomass burning (BB) is a major source of reactive organic carbon into the atmosphere. Once in the atmosphere, these organic BB emissions, in both the gas and particle phases, are subject to atmospheric oxidation, though the nature and imp…
View article: Measurement report: Underestimated reactive organic gases from residential combustion – insights from a near-complete speciation
Measurement report: Underestimated reactive organic gases from residential combustion – insights from a near-complete speciation Open
Reactive organic gases (ROGs), as important precursors of secondary pollutants, are not well resolved as their chemical complexity has challenged their quantification in many studies. Here, a near-complete speciation of ROG emissions from …
View article: Measurements of VOCs in ambient air by Vocus PTR-TOF-MS: calibrations, instrument background corrections, and introducing a PTR Data Toolkit
Measurements of VOCs in ambient air by Vocus PTR-TOF-MS: calibrations, instrument background corrections, and introducing a PTR Data Toolkit Open
Volatile organic compound (VOC) emissions and subsequent oxidation contribute to the formation of secondary pollutants and poor air quality in general. As more VOCs at lower mixing ratios have become the target of air quality investigation…
View article: Supplementary material to "Measurements of VOCs in ambient air by Vocus PTR-TOF-MS: calibrations, instrument background corrections, and introducing a PTR Data Toolkit"
Supplementary material to "Measurements of VOCs in ambient air by Vocus PTR-TOF-MS: calibrations, instrument background corrections, and introducing a PTR Data Toolkit" Open
View article: Comment on acp-2022-857
Comment on acp-2022-857 Open
Abstract. Biomass burning (BB) is a major source of reactive organic carbon into the atmosphere. Once in the atmosphere, these organic BB emissions, in both the gas and particle phases, are subject to atmospheric oxidation…
View article: Supplementary material to "Evolution of Organic Carbon in the Laboratory Oxidation of Biomass Burning Emissions"
Supplementary material to "Evolution of Organic Carbon in the Laboratory Oxidation of Biomass Burning Emissions" Open
View article: Evolution of Organic Carbon in the Laboratory Oxidation of Biomass Burning Emissions
Evolution of Organic Carbon in the Laboratory Oxidation of Biomass Burning Emissions Open
Biomass burning (BB) is a major source of reactive organic carbon into the atmosphere. Once in the atmosphere, these organic BB emissions, in both the gas and particle phases, are subject to atmospheric oxidation, though the nature and imp…
View article: Comment on acp-2022-711
Comment on acp-2022-711 Open
Abstract. Reactive organic gases (ROGs), as important precursors of secondary pollutants, are not well resolved as the chemical complexity challenged its quantification in many studies. Here, a near-complete speciation of …
View article: Comment on acp-2022-711
Comment on acp-2022-711 Open
Abstract. Reactive organic gases (ROGs), as important precursors of secondary pollutants, are not well resolved as the chemical complexity challenged its quantification in many studies. Here, a near-complete speciation of …
View article: Measurement report: Underestimated reactive organic gases from residential combustion: insights from a near-complete speciation
Measurement report: Underestimated reactive organic gases from residential combustion: insights from a near-complete speciation Open
Reactive organic gases (ROGs), as important precursors of secondary pollutants, are not well resolved as the chemical complexity challenged its quantification in many studies. Here, a near-complete speciation of ROGs with 125 species was d…
View article: Electrocautery smoke exposure and efficacy of smoke evacuation systems in minimally invasive and open surgery: a prospective randomized study
Electrocautery smoke exposure and efficacy of smoke evacuation systems in minimally invasive and open surgery: a prospective randomized study Open
Worldwide, health care professionals working in operating rooms (ORs) are exposed to electrocautery smoke on a daily basis. Aims of this study were to determine composition and concentrations of electrocautery smoke in the OR using mass sp…
View article: Surgical smoke: modern mobile smoke evacuation systems improve occupational safety in the operating theatre
Surgical smoke: modern mobile smoke evacuation systems improve occupational safety in the operating theatre Open
OBJECTIVES Evaluation of smoke capture efficiency of different mobile smoke evacuation devices with respect to volatile organic compounds and their noise emission. METHODS Electrosurgical incisions were performed on fresh porcine liver in …
View article: Measurements of Volatile Organic Compounds During the COVID‐19 Lockdown in Changzhou, China
Measurements of Volatile Organic Compounds During the COVID‐19 Lockdown in Changzhou, China Open
The COVID‐19 outbreak in 2020 prompted strict lockdowns, reduced human activity, and reduced emissions of air pollutants. We measured volatile organic compounds (VOCs) using a proton‐transfer‐reaction mass spectrometry instrument in Changz…
View article: Volatile chemical product emissions enhance ozone and modulate urban chemistry
Volatile chemical product emissions enhance ozone and modulate urban chemistry Open
Significance Recent work in Los Angeles has shown that urban volatile organic compound (VOC) emissions from consumer and industrial products—termed volatile chemical products (VCPs)—are now an important source of ozone precursors. Using ad…
View article: A biogenic secondary organic aerosol source of cirrus ice nucleating particles
A biogenic secondary organic aerosol source of cirrus ice nucleating particles Open
Atmospheric ice nucleating particles (INPs) influence global climate by altering cloud formation, lifetime, and precipitation efficiency. The role of secondary organic aerosol (SOA) material as a source of INPs in the ambient atmosphere ha…
View article: The nitrogen budget of laboratory-simulated western US wildfires during the FIREX 2016 Fire Lab study
The nitrogen budget of laboratory-simulated western US wildfires during the FIREX 2016 Fire Lab study Open
Reactive nitrogen (Nr, defined as all nitrogen-containing compounds except for N2 and N2O) is one of the most important classes of compounds emitted from wildfire, as Nr impacts both atmospheric oxidation processes and particle formation c…
View article: Biomass-burning-derived particles from a wide variety of fuels – Part 2: Effects of photochemical aging on particle optical and chemical properties
Biomass-burning-derived particles from a wide variety of fuels – Part 2: Effects of photochemical aging on particle optical and chemical properties Open
Particles in smoke emitted from biomass combustion have a large impact on global climate and urban air quality. There is limited understanding of how particle optical properties – especially the contributions of black carbon (BC) and brown…
View article: Supplementary material to "Biomass-burning-derived particles from a wide variety of fuels: Part 2: Effects of photochemical aging on particle optical and chemical properties"
Supplementary material to "Biomass-burning-derived particles from a wide variety of fuels: Part 2: Effects of photochemical aging on particle optical and chemical properties" Open
View article: Biomass-burning-derived particles from a wide variety of fuels: Part 2: Effects of photochemical aging on particle optical and chemical properties
Biomass-burning-derived particles from a wide variety of fuels: Part 2: Effects of photochemical aging on particle optical and chemical properties Open
Particles in smoke emitted from biomass combustion have a large impact on global climate and urban air quality. There is limited understanding of how particle optical properties – especially the contributions of black carbon (BC) and brown…
View article: The nitrogen budget of laboratory-simulated western U.S. wildfires during the FIREX 2016 FireLab study
The nitrogen budget of laboratory-simulated western U.S. wildfires during the FIREX 2016 FireLab study Open
Total reactive nitrogen (Nr, defined as all nitrogen-containing compounds except for N2 and N2O) was measured by catalytic conversion to NO and detection by NO-O3 chemiluminescence together with individual Nr species during a series of lab…
View article: Dimensionality-reduction techniques for complex mass spectrometric datasets: application to laboratory atmospheric organic oxidation experiments
Dimensionality-reduction techniques for complex mass spectrometric datasets: application to laboratory atmospheric organic oxidation experiments Open
Oxidation of organic compounds in the atmosphere produces an immensely complex mixture of product species, posing a challenge for both their measurement in laboratory studies and their inclusion in air quality and climate models. Mass spec…
View article: Mechanistic study of the formation of ring-retaining and ring-opening products from the oxidation of aromatic compounds under urban atmospheric conditions
Mechanistic study of the formation of ring-retaining and ring-opening products from the oxidation of aromatic compounds under urban atmospheric conditions Open
Aromatic hydrocarbons make up a large fraction of anthropogenic volatile organic compounds and contribute significantly to the production of tropospheric ozone and secondary organic aerosol (SOA). Four toluene and four 1,2,4-trimethylbenze…