Aging of atmospheric brown carbon aerosol

RF Hems, EG Schnitzler, C Liu-Kang… - ACS Earth and Space …, 2021 - ACS Publications
Emitted by numerous primary sources and formed by secondary sources, atmospheric
brown carbon (BrC) aerosol is chemically complex. As BrC aerosol ages in the atmosphere …

Emerging investigator series: critical review of photophysical models for the optical and photochemical properties of dissolved organic matter

G McKay - Environmental Science: Processes & Impacts, 2020 - pubs.rsc.org
Optical measurements (absorbance and fluorescence) are widely used to track dissolved
organic matter (DOM) quantity and quality in natural and engineered systems. Despite many …

Rate of atmospheric brown carbon whitening governed by environmental conditions

EG Schnitzler, NGA Gerrebos… - Proceedings of the …, 2022 - National Acad Sciences
Biomass burning organic aerosol (BBOA) in the atmosphere contains many compounds that
absorb solar radiation, called brown carbon (BrC). While BBOA is in the atmosphere, BrC …

Research progress on secondary formation, photosensitive reaction mechanism and human health effects of chromophoric brown carbon

B Chen, J Chen, G Li, T An - Journal of Environmental Sciences, 2024 - Elsevier
Brown carbon (BrC) has attracted widespread attention because of its strong absorption of
solar radiation in the ultraviolet-visible wavelength range, which causes adverse impacts on …

Aqueous photoreactions of wood smoke brown carbon

RF Hems, EG Schnitzler, M Bastawrous… - ACS Earth and Space …, 2020 - ACS Publications
A dominant source of light-absorbing aerosol particles, brown carbon (BrC), to the
atmosphere is smoke from biomass burning. Aqueous aging of biomass burning organic …

Solvent effects on chemical composition and optical properties of extracted secondary brown carbon constituents

K Chen, N Raeofy, M Lum, R Mayorga… - Aerosol Science and …, 2022 - Taylor & Francis
Brown carbon (BrC) aerosol is an important contributor to positive radiative forcing on Earth,
but its influence on the global radiative budget remains uncertain due to the limitations of …

Ultraviolet Irradiation Can Increase the Light Absorption and Viscosity of Primary Brown Carbon from Biomass Burning

HH Al-Mashala, KL Betz, CT Calvert… - ACS Earth and Space …, 2023 - ACS Publications
The light absorption of brown carbon (BrC) constituents of biomass burning organic aerosol
(BBOA) changes in the atmosphere, in part due to multiphase oxidation. For example …

Ultrafast energy transfer determines the formation of fluorescence in DOM and humic substances

BP Yakimov, AA Rubekina, GS Budylin… - Environmental …, 2021 - ACS Publications
Humification is a ubiquitous natural process of biomass degradation that creates
multicomponent systems of nonliving organic matter, including dissolved organic matter …

[HTML][HTML] Source-specific light absorption by carbonaceous components in the complex aerosol matrix from yearly filter-based measurements

V Moschos, M Gysel-Beer, RL Modini… - Atmospheric …, 2021 - acp.copernicus.org
Understanding the sources of light-absorbing organic (brown) carbon (BrC) and its
interaction with black carbon (BC) and other non-refractory particulate matter (NR-PM) …

Emerging investigator series: heterogeneous OH oxidation of primary brown carbon aerosol: effects of relative humidity and volatility

EG Schnitzler, T Liu, RF Hems… - … Science: Processes & …, 2020 - pubs.rsc.org
The climate forcing of light-absorbing organic aerosol, or brown carbon (BrC), emitted from
biomass burning may be significant but is currently poorly constrained, in part due to …