Related Experiment Video
Updated: May 3, 2026
05:45
Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions
Published on: January 7, 2019
13.0K
[Aerosol optical properties during different air-pollution episodes over Beijing]
Chan-Zhen Shi1, Xing-Na Yu2, Bin Zhou3
1Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China. 12210740012@fudan.edu.cn
Huan Jing Ke Xue= Huanjing Kexue
|January 25, 2014
Summary
Beijing
Area of Science:
- Atmospheric Science
- Environmental Science
- Aerosol Science
Background:
- Air pollution in Beijing is a significant environmental concern.
- Understanding aerosol optical properties is crucial for air quality management.
- Different pollution events, like biomass burning and dust storms, have distinct impacts.
Purpose of the Study:
- To analyze aerosol optical properties in Beijing during various pollution episodes.
- To differentiate aerosol types using optical characteristics.
- To investigate the influence of different pollution sources on aerosol behavior.
Main Methods:
- Utilized data from the Aerosol Robotic Network (AERONET) spanning 2005-2011.
- Analyzed aerosol optical depth (AOD) and Angstrom exponent (alpha).
- Examined single scattering albedo (SSA) and aerosol volume size distributions.
Main Results:
- Dust storms exhibited the highest AOD and lowest alpha, indicating coarse particles.
- Biomass burning and fireworks showed increased AOD compared to background levels.
- Single scattering albedo (SSA) varied, with dust aerosols being the highest.
Conclusions:
- AOD and alpha effectively distinguish aerosol types in Beijing.
- Pollution episodes significantly alter aerosol optical properties.
- Particle size distribution shifts towards coarser particles during polluted conditions.
