Measurement report: Intensive biomass burning emissions and rapid nitrate formation drive severe haze formation in the Sichuan Basin, China – insights from aerosol mass spectrometry

• Published in: Atmospheric chemistry and physics Vol. 23; no. 2; pp. 1147 - 1167
• Main Authors: Bao, Zhier, Zhang, Xinyi, Li, Qing, Zhou, Jiawei, Shi, Guangming, Zhou, Li, Yang, Fumo, Xie, Shaodong, Zhang, Dan, Zhai, Chongzhi, Li, Zhenliang, Peng, Chao, Chen, Yang
• Format: Journal Article
• Language: English
• Published: Katlenburg-Lindau Copernicus GmbH 23.01.2023; Copernicus Publications
• Subjects: Aerosol concentrations; Aerosol content; Aerosol formation; Aerosols; Air pollution; Ammonium; Ammonium compounds; Automotive emissions; Biomass; Biomass burning; Burning; Chemical composition; Chemical speciation; Diameters; Emission measurements; Emissions; Exhaust emission; Fog; Haze; High humidity; Humidity; Hydrocarbons; Identification; Liquid water content; Mass spectrometry; Mass spectroscopy; Measurement; Mitigation; Moisture content; Nitrates; Oxidation; Particulate emissions; Particulate matter; Photochemical reactions; Photochemicals; Photochemistry; Photooxidation; Pollution; Relative humidity; Secondary aerosols; Speciation; Suburban areas; Sulfate formation; Sulfates; Synoptic conditions; Topography; Vehicle emissions; VOCs; Volatile organic compounds; Water; Water content; Sichuan Basin; Beijing China; China

Haze pollution is a severe environmental problem, caused by elevation of fine particles (aerodynamic diameter <2.5 µm, PM2.5), which is related to secondary aerosol formation, unfavourable synoptic conditions and regional transport, etc. The regional haze formation in basin areas, along with inte...