Dilution and photooxidation driven processes explain the evolution of organic aerosol in wildfire plumes

A Akherati, Y He, LA Garofalo, AL Hodshire… - Environmental …, 2022 - pubs.rsc.org
Wildfires are an important atmospheric source of primary organic aerosol (POA) and
precursors for secondary organic aerosol (SOA) at regional and global scales. However …

Rapid growth of anthropogenic organic nanoparticles greatly alters cloud life cycle in the Amazon rainforest

RA Zaveri, J Wang, J Fan, Y Zhang, JE Shilling… - Science …, 2022 - science.org
Aerosol-cloud interactions remain uncertain in assessing climate change. While
anthropogenic activities produce copious aerosol nanoparticles smaller than 10 …

Comparison of Phase States of PM2.5 over Megacities, Seoul and Beijing, and Their Implications on Particle Size Distribution

M Song, R Jeong, D Kim, Y Qiu, X Meng… - … science & technology, 2022 - ACS Publications
Although the particle phase state is an important property, there is scant information on it,
especially, for real-world aerosols. To explore the phase state of fine mode aerosols (PM2 …

Predicting secondary organic aerosol phase state and viscosity and its effect on multiphase chemistry in a regional-scale air quality model

R Schmedding, QZ Rasool, Y Zhang… - Atmospheric …, 2020 - acp.copernicus.org
Atmospheric aerosols are a significant public health hazard and have substantial impacts on
the climate. Secondary organic aerosols (SOAs) have been shown to phase separate into a …

Heterogeneous nucleation drives particle size segregation in sequential ozone and nitrate radical oxidation of catechol

LA Garofalo, Y He, SH Jathar, JR Pierce… - Environmental …, 2021 - ACS Publications
Secondary organic aerosol formation via condensation of organic vapors onto existing
aerosol transforms the chemical composition and size distribution of ambient aerosol, with …

Effective mass accommodation for partitioning of organic compounds into surface films with different viscosities

PSJ Lakey, BE Cummings, MS Waring… - … Science: Processes & …, 2023 - pubs.rsc.org
Indoor surfaces can act as reservoirs and reaction media influencing the concentrations and
type of species that people are exposed to indoors. Mass accommodation and partitioning …

Vapors are lost to walls, not to particles on the wall: artifact-corrected parameters from chamber experiments and implications for global secondary organic aerosol

KR Bilsback, Y He, CD Cappa… - Environmental …, 2022 - ACS Publications
Atmospheric models of secondary organic aerosol (OA)(SOA) typically rely on parameters
derived from environmental chambers. Chambers are subject to experimental artifacts …

Humidity dependence of the condensational growth of α-pinene secondary organic aerosol particles

Y Qin, J Ye, P Ohno, J Zhai, Y Han, P Liu… - Environmental …, 2021 - ACS Publications
The influence of relative humidity (RH) on the condensational growth of organic aerosol
particles remains incompletely understood. Herein, the RH dependence was investigated …

Process-level modeling can simultaneously explain secondary organic aerosol evolution in chambers and flow reactors

Y He, AT Lambe, JH Seinfeld, CD Cappa… - Environmental …, 2022 - ACS Publications
Secondary organic aerosol (SOA) data gathered in environmental chambers (ECs) have
been used extensively to develop parameters to represent SOA formation and evolution …

Nonequilibrium Behavior in Isoprene Secondary Organic Aerosol

Y Chen, RA Zaveri, GW Vandergrift… - Environmental …, 2023 - ACS Publications
Recent studies have shown that instantaneous gas-particle equilibrium partitioning
assumptions fail to predict SOA formation, even at high relative humidity (∼ 85%), and …