Role of main mineral components of dust particles in O3 formation in urban air

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  • 1. Institute of Desert Meteorology, China Meteorological Administration, Urumqi 830002, China; 2. School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; 3. Center for Environmental Science in Saitama, Saitama 374-0115, Japan

Received date: 2024-09-06

  Online published: 2025-04-30

Abstract

Dust particles adsorb a large amount of gaseous pollutant during their transport in air, and the gaseous components adsorbed on the surface of particulate matter could directly contribute to O3 generation via heterogeneous atmospheric chemical reactions. The mechanisms through which dust aerosols affect the generation of urban atmospheric O3 are complex as the physical and chemical properties such as absorption capacity and oxidative potential (OP) of the mineral compositions widely differ. In this work, the mechanisms were summarized and analyzed based on field observation data, research conclusions, and reports in the literature. It was found that the heavy metals and main mineral components (e.g. quartz) in dust stored OP and played important roles in the atmospheric chemical reactions involving gaseous pollutants. Suggestions for future researches were also proposed.

Cite this article

LU Jiakuan, LU Senlin, NIU Hejingying, ZHAO Jiumei, HOU Guoqing, LIU Xinchun, SHINICHI Yonemochi . Role of main mineral components of dust particles in O3 formation in urban air[J]. Journal of Shanghai University, 2025 , 31(2) : 264 -273 . DOI: 10.12066/j.issn.1007-2861.2649

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