Effects of Atmospheric Photochemical Aging on Chemical Characteristics and Toxicity of PM2.5 Emissions from Forest Vegetation Combustion

Effects of Atmospheric Photochemical Aging on Chemical Characteristics and Toxicity of PM2.5 Emissions from Forest Vegetation Combustion

Overview

This work examines how atmospheric photochemical aging changes the chemical composition and cellular toxicity of PM2.5 emitted by forest-vegetation combustion.

Core Contributions

• Tracks forest-fire PM2.5 under fresh, 2-day, 5-day, and 15-day equivalent atmospheric aging conditions.
• Characterizes aging-driven changes in secondary organic matter, inorganic ions, particle acidity, and water-soluble metals.
• Evaluates toxicity in BEAS-2B cells and investigates astaxanthin as a potential intervention.

Publication Information

• Authors: Kaili Li, Tong Wang, Han Li, Jing He, Yun Liu, Yuping Sun, Yongming Zhang, Qixing Zhang, An Xu
• Journal: Environmental Science & Technology
• Publication date: 2026-01-07
• DOI: 10.1021/acs.est.5c09241
• Publisher: American Chemical Society (ACS)
• Status: Published

Citation

Kaili Li, Tong Wang, Han Li, Jing He, Yun Liu, Yuping Sun, Yongming Zhang, Qixing Zhang, An Xu. “Effects of Atmospheric Photochemical Aging on Chemical Characteristics and Toxicity of PM2.5 Emissions from Forest Vegetation Combustion.” Environmental Science & Technology, vol. 60, no. 2, 1952-1964 (2026). https://doi.org/10.1021/acs.est.5c09241

Keywords

forest fire, PM2.5, photochemical aging, aerosol chemistry, cellular toxicity

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