Articles | Volume 21, issue 19
https://doi.org/10.5194/acp-21-14959-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-21-14959-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Response of particle number concentrations to the clean air action plan: lessons from the first long-term aerosol measurements in a typical urban valley in western China
Suping Zhao
CORRESPONDING AUTHOR
Key Laboratory of Land Surface Process and Climate Change in Cold and
Arid Regions, Northwest Institute of Eco-Environment and Resources, Chinese
Academy of Sciences, Lanzhou 730000, China
Pingliang Land Surface Process & Severe Weather Research Station,
Pingliang, 744015, China
Gansu Land Surface Process & Severe Weather Observation and
Research Station, Pingliang, 744015, China
State Key Laboratory of Cryospheric Science, Northwest Institute of
Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000,
China
Ye Yu
Key Laboratory of Land Surface Process and Climate Change in Cold and
Arid Regions, Northwest Institute of Eco-Environment and Resources, Chinese
Academy of Sciences, Lanzhou 730000, China
Pingliang Land Surface Process & Severe Weather Research Station,
Pingliang, 744015, China
Gansu Land Surface Process & Severe Weather Observation and
Research Station, Pingliang, 744015, China
Jianglin Li
Key Laboratory of Land Surface Process and Climate Change in Cold and
Arid Regions, Northwest Institute of Eco-Environment and Resources, Chinese
Academy of Sciences, Lanzhou 730000, China
Pingliang Land Surface Process & Severe Weather Research Station,
Pingliang, 744015, China
Gansu Land Surface Process & Severe Weather Observation and
Research Station, Pingliang, 744015, China
Daiying Yin
Key Laboratory of Desert and Desertification, Northwest Institute of
Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000,
China
University of Chinese Academy of Sciences, Beijing 100049, China
Shaofeng Qi
Key Laboratory of Land Surface Process and Climate Change in Cold and
Arid Regions, Northwest Institute of Eco-Environment and Resources, Chinese
Academy of Sciences, Lanzhou 730000, China
University of Chinese Academy of Sciences, Beijing 100049, China
Dahe Qin
State Key Laboratory of Cryospheric Science, Northwest Institute of
Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000,
China
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Cited
10 citations as recorded by crossref.
- Aerosol Vertical Structure and Optical Properties during Two Dust and Haze Episodes in a Typical Valley Basin City, Lanzhou of Northwest China J. Ma et al. 10.3390/rs16050929
- Atmospheric aerosol size distribution impacts radiative effects over the Himalayas via modulating aerosol single-scattering albedo P. Tian et al. 10.1038/s41612-023-00368-5
- First real-time size distribution measurements of aerosol particles in Ulaanbaatar, Mongolia M. Kim et al. 10.1016/j.atmosenv.2025.121052
- New Particle Formation Occurrence in the Urban Atmosphere of Beijing During 2013–2020 D. Shang et al. 10.1029/2022JD038334
- High contribution of new particle formation to ultrafine particles in four seasons in an urban atmosphere in south China L. Tao et al. 10.1016/j.scitotenv.2023.164202
- Challenges in Observation of Ultrafine Particles: Addressing Estimation Miscalculations and the Necessity of Temporal Trends T. Lin et al. 10.1021/acs.est.4c07460
- Microscopic Characterization of Individual Aerosol Particles in a Typical Industrial City and Its Surrounding Rural Areas in China Y. Su et al. 10.3390/toxics12070525
- Variations in Source Contributions of Particle Number Concentration Under Long-Term Emission Control in Winter of Urban Beijing D. Shang et al. 10.2139/ssrn.3975615
- A New Physical Mechanism of Rainfall Facilitation to New Particle Formation S. Zhao et al. 10.1029/2023GL106842
- Variations in source contributions of particle number concentration under long-term emission control in winter of urban Beijing D. Shang et al. 10.1016/j.envpol.2022.119072
10 citations as recorded by crossref.
- Aerosol Vertical Structure and Optical Properties during Two Dust and Haze Episodes in a Typical Valley Basin City, Lanzhou of Northwest China J. Ma et al. 10.3390/rs16050929
- Atmospheric aerosol size distribution impacts radiative effects over the Himalayas via modulating aerosol single-scattering albedo P. Tian et al. 10.1038/s41612-023-00368-5
- First real-time size distribution measurements of aerosol particles in Ulaanbaatar, Mongolia M. Kim et al. 10.1016/j.atmosenv.2025.121052
- New Particle Formation Occurrence in the Urban Atmosphere of Beijing During 2013–2020 D. Shang et al. 10.1029/2022JD038334
- High contribution of new particle formation to ultrafine particles in four seasons in an urban atmosphere in south China L. Tao et al. 10.1016/j.scitotenv.2023.164202
- Challenges in Observation of Ultrafine Particles: Addressing Estimation Miscalculations and the Necessity of Temporal Trends T. Lin et al. 10.1021/acs.est.4c07460
- Microscopic Characterization of Individual Aerosol Particles in a Typical Industrial City and Its Surrounding Rural Areas in China Y. Su et al. 10.3390/toxics12070525
- Variations in Source Contributions of Particle Number Concentration Under Long-Term Emission Control in Winter of Urban Beijing D. Shang et al. 10.2139/ssrn.3975615
- A New Physical Mechanism of Rainfall Facilitation to New Particle Formation S. Zhao et al. 10.1029/2023GL106842
- Variations in source contributions of particle number concentration under long-term emission control in winter of urban Beijing D. Shang et al. 10.1016/j.envpol.2022.119072
Latest update: 22 Feb 2025
Short summary
We found a large PM2.5 reduction in response to Clean Air Action (CAA), but impacts of CAA on particle number concentrations (PNCs) may be different from PM2.5 mass due to newly formed particle impacts. The k-means clustering technique and Theil–Sen regression were used to analyze PNCs variations and to quantify their trends. Increased daytime solar radiation, higher temperature and lower RH at noon induced by reduced PM2.5 mass promoted formation of new particles and increased particle numbers.
We found a large PM2.5 reduction in response to Clean Air Action (CAA), but impacts of CAA on...
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