Articles | Volume 20, issue 14
https://doi.org/10.5194/acp-20-8533-2020
© Author(s) 2020. 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-20-8533-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Jul 2020
Research article |
| 22 Jul 2020
Particle number concentrations and size distribution in a polluted megacity: the Delhi Aerosol Supersite study
Shahzad Gani
Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, Austin, Texas, USA
Sahil Bhandari
McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas, USA
Kanan Patel
McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas, USA
Sarah Seraj
Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, Austin, Texas, USA
Prashant Soni
Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi, India
Zainab Arub
Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi, India
Gazala Habib
Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi, India
McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas, USA
Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, Austin, Texas, USA
Viewed
Total article views: 4,250 (including HTML, PDF, and XML)
Cumulative views and downloads
(calculated since 17 Feb 2020)
| HTML | XML | Total | Supplement | BibTeX | EndNote | |
|---|---|---|---|---|---|---|
| 3,164 | 1,061 | 25 | 4,250 | 245 | 32 | 48 |
- HTML: 3,164
- PDF: 1,061
- XML: 25
- Total: 4,250
- Supplement: 245
- BibTeX: 32
- EndNote: 48
Total article views: 3,345 (including HTML, PDF, and XML)
Cumulative views and downloads
(calculated since 22 Jul 2020)
| HTML | XML | Total | Supplement | BibTeX | EndNote | |
|---|---|---|---|---|---|---|
| 2,646 | 683 | 16 | 3,345 | 151 | 23 | 41 |
- HTML: 2,646
- PDF: 683
- XML: 16
- Total: 3,345
- Supplement: 151
- BibTeX: 23
- EndNote: 41
Total article views: 905 (including HTML, PDF, and XML)
Cumulative views and downloads
(calculated since 17 Feb 2020)
| HTML | XML | Total | Supplement | BibTeX | EndNote | |
|---|---|---|---|---|---|---|
| 518 | 378 | 9 | 905 | 94 | 9 | 7 |
- HTML: 518
- PDF: 378
- XML: 9
- Total: 905
- Supplement: 94
- BibTeX: 9
- EndNote: 7
Viewed (geographical distribution)
Total article views: 4,250 (including HTML, PDF, and XML)
Thereof 4,212 with geography defined
and 38 with unknown origin.
Total article views: 3,345 (including HTML, PDF, and XML)
Thereof 3,338 with geography defined
and 7 with unknown origin.
Total article views: 905 (including HTML, PDF, and XML)
Thereof 874 with geography defined
and 31 with unknown origin.
| Country | # | Views | % |
|---|
| Country | # | Views | % |
|---|
| Country | # | Views | % |
|---|
| Total: | 0 |
| HTML: | 0 |
| PDF: | 0 |
| XML: | 0 |
- 1
1
| Total: | 0 |
| HTML: | 0 |
| PDF: | 0 |
| XML: | 0 |
- 1
1
| Total: | 0 |
| HTML: | 0 |
| PDF: | 0 |
| XML: | 0 |
- 1
1
Cited
12 citations as recorded by crossref.
- Planetary Boundary Layer Height Modulates Aerosol—Water Vapor Interactions During Winter in the Megacity of Delhi S. S. Raj et al. 10.1029/2021JD035681
- 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 S. Zhao et al. 10.5194/acp-21-14959-2021
- Persistence of Primary and Secondary Pollutants in Delhi: Concentrations and Composition from 2017 through the COVID Pandemic K. Patel et al. 10.1021/acs.estlett.1c00211
- Characteristics of Aerosol Size Distributions and New Particle Formation Events at Delhi: An Urban Location in the Indo-Gangetic Plains S. Jose et al. 10.3389/feart.2021.750111
- Current status of source apportionment of ambient aerosols in India S. Yadav et al. 10.1016/j.atmosenv.2022.118987
- Assessing the accuracy of low-cost optical particle sensors using a physics-based approach D. Hagan & J. Kroll 10.5194/amt-13-6343-2020
- Contrasting Response of Ultrafine Particle Number and PM 2.5 Mass Concentrations to Clean Air Action in China S. Zhao et al. 10.1029/2021GL093886
- Sources and Dynamics of Submicron Aerosol during the Autumn Onset of the Air Pollution Season in Delhi, India K. Patel et al. 10.1021/acsearthspacechem.0c00340
- Spatiotemporal profiles of ultrafine particles differ from other traffic-related air pollutants: lessons from long-term measurements at fixed sites and mobile monitoring S. Gani et al. 10.1039/D1EA00058F
- Evolution of size and composition of fine particulate matter in the Delhi megacity during later winter N. Thamban et al. 10.1016/j.atmosenv.2021.118752
- Atmospheric new particle formation in India: Current understanding and knowledge gaps V. Kanawade et al. 10.1016/j.atmosenv.2021.118894
- Fireworks induced quasi-ultrafine particle number concentration and size-resolved elemental distribution in megacity Delhi S. Yadav et al. 10.1007/s12517-021-09385-1
11 citations as recorded by crossref.
- Planetary Boundary Layer Height Modulates Aerosol—Water Vapor Interactions During Winter in the Megacity of Delhi S. S. Raj et al. 10.1029/2021JD035681
- 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 S. Zhao et al. 10.5194/acp-21-14959-2021
- Persistence of Primary and Secondary Pollutants in Delhi: Concentrations and Composition from 2017 through the COVID Pandemic K. Patel et al. 10.1021/acs.estlett.1c00211
- Characteristics of Aerosol Size Distributions and New Particle Formation Events at Delhi: An Urban Location in the Indo-Gangetic Plains S. Jose et al. 10.3389/feart.2021.750111
- Current status of source apportionment of ambient aerosols in India S. Yadav et al. 10.1016/j.atmosenv.2022.118987
- Assessing the accuracy of low-cost optical particle sensors using a physics-based approach D. Hagan & J. Kroll 10.5194/amt-13-6343-2020
- Contrasting Response of Ultrafine Particle Number and PM 2.5 Mass Concentrations to Clean Air Action in China S. Zhao et al. 10.1029/2021GL093886
- Sources and Dynamics of Submicron Aerosol during the Autumn Onset of the Air Pollution Season in Delhi, India K. Patel et al. 10.1021/acsearthspacechem.0c00340
- Spatiotemporal profiles of ultrafine particles differ from other traffic-related air pollutants: lessons from long-term measurements at fixed sites and mobile monitoring S. Gani et al. 10.1039/D1EA00058F
- Evolution of size and composition of fine particulate matter in the Delhi megacity during later winter N. Thamban et al. 10.1016/j.atmosenv.2021.118752
- Atmospheric new particle formation in India: Current understanding and knowledge gaps V. Kanawade et al. 10.1016/j.atmosenv.2021.118894
Latest update: 07 Jun 2023
Short summary
Delhi, India, has had the highest fine particle mass (PM2.5; diameter < 2.5 µm) concentrations of any megacity on the planet in recent years. Here, we undertook a year of detailed measurements of particle size distributions. We observed that the number count of ultrafine particles (diameter < 100 nm) – unlike PM2.5 – is not dramatically elevated in Delhi. Using observations and a simple model, we illustrate how the high amount of PM2.5 in Delhi may suppress ultrafine particle concentrations.
Delhi, India, has had the highest fine particle mass (PM2.5; diameter < 2.5 µm) concentrations of any megacity on the planet in recent years. Here, we undertook a year of detailed measurements of particle size distributions. We observed that the number count of ultrafine particles (diameter < 100 nm) – unlike PM2.5 – is not dramatically...
Altmetrics
Final-revised paper
Preprint