Secondary formation of atmospheric brown carbon in China haze: implication for an enhancing role of ammonia

X Liu, H Wang, F Wang, S Lv, C Wu… - Environmental …, 2023 - ACS Publications
Optical characteristics and molecular compositions of brown carbon (BrC) were investigated
during winter 2019 at a rural site of China with a focus on nitro-aromatic compounds (NACs) …

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 …

Sulfate Formation by Photosensitization in Mixed Incense Burning–Sodium Chloride Particles: Effects of RH, Light Intensity, and Aerosol Aging

R Tang, R Zhang, J Ma, K Song, BR Go… - Environmental …, 2023 - ACS Publications
Elevated particulate sulfate concentrations have been frequently observed in coastal areas
when air masses are influenced by continental emissions, especially combustion sources …

Photolytic radical persistence due to anoxia in viscous aerosol particles

PA Alpert, J Dou, P Corral Arroyo, F Schneider… - Nature …, 2021 - nature.com
In viscous, organic-rich aerosol particles containing iron, sunlight may induce anoxic
conditions that stabilize reactive oxygen species (ROS) and carbon-centered radicals …

Laboratory investigation of renoxification from the photolysis of inorganic particulate nitrate

Q Shi, Y Tao, JE Krechmer, CL Heald… - … science & technology, 2021 - ACS Publications
Nitrogen oxides (NO x) play a key role in regulating the oxidizing capacity of the atmosphere
through controlling the abundance of O3, OH, and other important gas and particle species …

[HTML][HTML] Aqueous secondary organic aerosol formation from the direct photosensitized oxidation of vanillin in the absence and presence of ammonium nitrate

BRG Mabato, Y Lyu, Y Ji, YJ Li… - Atmospheric …, 2022 - acp.copernicus.org
Vanillin (VL), a phenolic aromatic carbonyl abundant in biomass burning emissions, forms
triplet excited states (3 VL∗) under simulated sunlight leading to aqueous secondary …

[HTML][HTML] Characterization of the light-absorbing properties, chromophore composition and sources of brown carbon aerosol in Xi'an, northwestern China

W Yuan, RJ Huang, L Yang, J Guo… - Atmospheric …, 2020 - acp.copernicus.org
The impact of brown carbon aerosol (BrC) on the Earth's radiative forcing balance has been
widely recognized but remains uncertain, mainly because the relationships among BrC …

Composition and light absorption of N-containing aromatic compounds in organic aerosols from laboratory biomass burning

M Xie, X Chen, MD Hays… - Atmospheric Chemistry and …, 2019 - acp.copernicus.org
This study seeks to understand the compositional details of N-containing aromatic
compounds (NACs) emitted during biomass burning (BB) and their contribution to light …

Characterisation of atmospheric organic aerosols with one-and multidimensional liquid chromatography and mass spectrometry: State of the art and future …

S Hildmann, T Hoffmann - TrAC Trends in Analytical Chemistry, 2024 - Elsevier
Aerosol particles are important components of the Earth's atmosphere and affect air quality
and climate. They are small enough to penetrate deep into human lungs and are associated …

Atmospheric processing of particulate imidazole compounds driven by photochemistry

X Hu, Z Guo, W Sun, X Lian, Y Fu, H Meng… - … & Technology Letters, 2022 - ACS Publications
As a potential fraction of brown carbon, particulate imidazole compounds may initiate
photosensitive reactions and have substantial radiative effects. However, our knowledge of …