Formation of urban fine particulate matter

R Zhang, G Wang, S Guo, ML Zamora, Q Ying… - Chemical …, 2015 - ACS Publications
Urban air pollution represents one of the greatest environmental challenges facing mankind
in the 21st century. 1, 2 Noticeably, many developing countries, such as China and India …

Explosive secondary aerosol formation during severe haze in the North China Plain

J Peng, M Hu, D Shang, Z Wu, Z Du, T Tan… - Environmental …, 2021 - ACS Publications
Severe haze events with exceedingly high-levels of fine aerosols occur frequently over the
past decades in the North China Plain (NCP), exerting profound impacts on human health …

Markedly enhanced absorption and direct radiative forcing of black carbon under polluted urban environments

J Peng, M Hu, S Guo, Z Du, J Zheng… - Proceedings of the …, 2016 - National Acad Sciences
Black carbon (BC) exerts profound impacts on air quality and climate because of its high
absorption cross-section over a broad range of electromagnetic spectra, but the current …

An unexpected catalyst dominates formation and radiative forcing of regional haze

F Zhang, Y Wang, J Peng, L Chen… - Proceedings of the …, 2020 - National Acad Sciences
Although regional haze adversely affects human health and possibly counteracts global
warming from increasing levels of greenhouse gases, the formation and radiative forcing of …

Reassessing the atmospheric oxidation mechanism of toluene

Y Ji, J Zhao, H Terazono, K Misawa… - Proceedings of the …, 2017 - National Acad Sciences
Photochemical oxidation of aromatic hydrocarbons leads to tropospheric ozone and
secondary organic aerosol (SOA) formation, with profound implications for air quality, human …

Nitrogen-containing compounds enhance light absorption of aromatic-derived brown carbon

Z Yang, NT Tsona, C George, L Du - Environmental Science & …, 2022 - ACS Publications
The formation of secondary brown carbon (BrC) is chemically complex, leading to an
unclear relationship between its molecular composition and optical properties. Here, we …

Variation of the radiative properties during black carbon aging: theoretical and experimental intercomparison

C He, KN Liou, Y Takano, R Zhang… - Atmospheric …, 2015 - acp.copernicus.org
A theoretical black carbon (BC) aging model is developed to account for three typical
evolution stages, namely, freshly emitted aggregates, BC coated by soluble material, and …

A Novel Mechanism for NO2-to-HONO Conversion on Soot: Synergistic Effect of Elemental Carbon and Organic Carbon

J Chen, H Jiang, X Chen, J Wang… - … & Technology Letters, 2023 - ACS Publications
Soot, mainly composed of elemental carbon (EC) and organic carbon (OC), plays an
important role in the formation of atmospheric nitrous acid (HONO) through the …

Multigeneration production of secondary organic aerosol from toluene photooxidation

Y Li, J Zhao, Y Wang, JH Seinfeld… - Environmental Science & …, 2021 - ACS Publications
Photooxidation of volatile organic compounds (VOCs) produces secondary organic aerosol
(SOA) and light-absorbing brown carbon (BrC) via multiple reaction steps/pathways …

Mechanisms of soot-aggregate restructuring and compaction

JC Corbin, RL Modini, M Gysel-Beer - Aerosol Science and …, 2023 - Taylor & Francis
Soot aggregates form as open, fractal-like structures, but aged atmospheric particles are
often observed to be restructured into more-compact shapes due to internal mixing …