Molecular Characterization of Atmospheric Organic Aerosols: Contemporary Applications of High-resolution Mass Spectrometry

Q Xie, A Laskin - TrAC Trends in Analytical Chemistry, 2024 - Elsevier
Recent advances in the molecular characterization of atmospheric organic aerosols by high-
resolution mass spectrometry (HRMS) have significantly enhanced our understanding of …

Wildfire particulates enhance phytoplankton growth and alter communities in the South China Sea under wind‐driven upwelling

R Peng, X Chen, Q Wu, Z Yan, Y Fu… - Journal of …, 2024 - Wiley Online Library
Extreme wildfire events and cyclones are on the rise across tropical regions in response to
climate change. Despite assumptions about their impact on phytoplankton through nutrient …

The complex composition of organic aerosols emitted during burning varies between Arctic and boreal peat

E Schneider, CP Rüger, ML Chacón-Patiño… - … Earth & Environment, 2024 - nature.com
Peatlands in the northern hemisphere are a major carbon storage but face an increased risk
of wildfires due to climate change leading to large-scale smoldering fires in boreal and Arctic …

Chemical tracers for Wildfires–Analysis of runoff surface Water by LC/Q-TOF-MS

I Ferrer, EM Thurman - Chemosphere, 2023 - Elsevier
A quantitative methodology using high resolution mass spectrometry was developed for the
identification of organic compounds derived from wildfires in surface water samples. The …

Ultrahigh performance LC/FT-MS non-targeted screening for biomass burning organic aerosol with MZmine2 and MFAssignR

T Divisekara, S Schum, L Mazzoleni - Chemosphere, 2023 - Elsevier
In recent years, ultrahigh performance liquid chromatography Fourier transform mass
spectrometry (LC/FT-MS) based non-targeted screening (NTS) methods have become …

Enhanced light absorption for solid-state brown carbon from wildfires due to organic and water coatings

Z Cheng, M Shrivastava, A Ijaz, D Veghte… - Nature …, 2024 - nature.com
Wildfires emit solid-state strongly absorptive brown carbon (solid S-BrC, commonly known
as tar ball), critical to Earth's radiation budget and climate, but their highly variable light …

Brown Carbon Emissions from Biomass Burning under Simulated Wildfire and Prescribed-Fire Conditions

CK Glenn, O El Hajj, Z McQueen, RP Poland… - ACS Es&t …, 2024 - ACS Publications
We investigated the light-absorption properties of brown carbon (BrC) as part of the Georgia
Wildland-Fire Simulation Experiment. We constructed fuel beds representative of three …

The effect of filter storage conditions on degradation of organic Aerosols

CK Glenn, O El Hajj, R Saleh - Aerosol Science and Technology, 2023 - Taylor & Francis
Current practices involve wrapping organic aerosol (OA) filter samples with aluminum foil
and storing in a freezer to avoid sample degradation prior to analysis. However, there is a …

Chemical Insights into the Molecular Composition of Organic Aerosols in the Urban Region of Houston, Texas

T Gautam, GW Vandergrift, NN Lata, Z Cheng… - ACS ES&T …, 2024 - ACS Publications
Molecular functional groups, such as organosulfates (CHOS) and organonitrates (CHNO)
are important tracers for field observations of secondary organic aerosols (SOA). While …

Tethered balloon system and High-Resolution Mass Spectrometry Reveal Increased Organonitrates Aloft Compared to the Ground Level

GW Vandergrift, DN Dexheimer, D Zhang… - Environmental …, 2024 - ACS Publications
Atmospheric particles play critical roles in climate. However, significant knowledge gaps
remain regarding the vertically resolved organic molecular-level composition of atmospheric …