Articles | Volume 20, issue 2
https://doi.org/10.5194/acp-20-735-2020
© 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-20-735-2020
© 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 Jan 2020
Research article |
| 22 Jan 2020
| 22 Jan 2020
Sources and atmospheric dynamics of organic aerosol in New Delhi, India: insights from receptor modeling
Sahil Bhandari
McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas, USA
Shahzad Gani
Department of Civil, Architectural and Environmental 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
Dongyu S. Wang
McKetta Department of Chemical 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
Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, Austin, Texas, USA
McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas, USA
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- Inferring Aerosol Sources from Low-Cost Air Quality Sensor Measurements: A Case Study in Delhi, India D. Hagan et al. 10.1021/acs.estlett.9b00393
- Modelling Complex Refractive Indices of Sub-micron Pure and Polluted Dust based on Compositional Sensitive Analysis . Sarla et al. 10.1007/s12647-022-00547-4
52 citations as recorded by crossref.
- Study of secondary organic aerosol formation and aging using ambient air in an oxidation flow reactor during high pollution events over Delhi V. Goel et al. 10.1016/j.envres.2024.118542
- Particle number concentrations and size distribution in a polluted megacity: the Delhi Aerosol Supersite study S. Gani et al. 10.5194/acp-20-8533-2020
- Temporal dynamics and source characteristics of fine particulate matter using Positive Matrix Factorization (PMF) V. Kumar et al. 10.1016/j.apr.2025.102539
- 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
- Highly time-resolved chemical speciation and source apportionment of organic aerosol components in Delhi, India, using extractive electrospray ionization mass spectrometry V. Kumar et al. 10.5194/acp-22-7739-2022
- 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
- PM2.5 bound species variation and source characterization in the post-lockdown period of the Covid-19 pandemic in Delhi M. Faisal et al. 10.1016/j.uclim.2022.101290
- Size distributions of source-specific risks of atmospheric heavy metals: An advanced method to quantify source contributions to size-segregated respiratory exposure Y. Tian et al. 10.1016/j.jhazmat.2020.124355
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- Oxidative potential of ambient fine particulate matter for ranking of emission sources: an insight for emissions reductions . Shivani & R. Gadi 10.1007/s11869-021-01005-x
- Unveiling PM2.5 sources: Double and tracer conjugate PMF approaches for high-resolution organic, BC, and inorganic PM2.5 data M. Faisal et al. 10.1016/j.atmosenv.2024.121011
- Global Emissions of Hydrogen Chloride and Particulate Chloride from Continental Sources B. Zhang et al. 10.1021/acs.est.1c05634
- Wintertime chemical characteristics of aerosol and their role in light extinction during clear and polluted days in rural Indo Gangetic plain S. Izhar et al. 10.1016/j.envpol.2021.117034
- Submicron aerosol composition in the world's most polluted megacity: the Delhi Aerosol Supersite study S. Gani et al. 10.5194/acp-19-6843-2019
- Factors influencing ambient particulate matter in Delhi, India: Insights from machine learning K. Patel et al. 10.1080/02786826.2023.2193237
- PM1 composition and source apportionment at two sites in Delhi, India, across multiple seasons E. Reyes-Villegas et al. 10.5194/acp-21-11655-2021
- Short term unwinding lockdown effects on air pollution P. Das et al. 10.1016/j.jclepro.2021.126514
- Ammonium Chloride Associated Aerosol Liquid Water Enhances Haze in Delhi, India Y. Chen et al. 10.1021/acs.est.2c00650
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- Review of Secondary Aerosol Formation and Its Contribution in Air Pollution Load of Delhi NCR M. Mishra et al. 10.1007/s11270-022-06047-0
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- Improved method to apportion optical absorption by black and brown carbon under the influence of haze and fog at Lumbini, Nepal, on the Indo-Gangetic Plains S. Izhar et al. 10.1016/j.envpol.2020.114640
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- Measurement report: Interpretation of wide-range particulate matter size distributions in Delhi Ü. Şahin et al. 10.5194/acp-22-5415-2022
- What Is Polluting Delhi’s Air? A Review from 1990 to 2022 S. Guttikunda et al. 10.3390/su15054209
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- Measurement report: Hygroscopicity of size-selected aerosol particles in the heavily polluted urban atmosphere of Delhi: impacts of chloride aerosol A. Mandariya et al. 10.5194/acp-24-3627-2024
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- The influence of local and regional sources on concentrations of fine particulate matter in Delhi D. Srivastava et al. 10.1016/j.apr.2025.102476
- Meteorology governs the variation of Delhi's high particulate-bound chloride levels C. Manchanda et al. 10.1016/j.chemosphere.2021.132879
- Planetary Boundary Layer Height Modulates Aerosol—Water Vapor Interactions During Winter in the Megacity of Delhi S. S. Raj et al. 10.1029/2021JD035681
- Field Crop Residue burning Induced Particulate Pollution in NW India – Policy Challenges & Way Forward L. Kaushal 10.1088/1755-1315/1009/1/012006
- Air mass physiochemical characteristics over New Delhi: impacts on aerosol hygroscopicity and cloud condensation nuclei (CCN) formation Z. Arub et al. 10.5194/acp-20-6953-2020
- Biogenic and anthropogenic sources of isoprene and monoterpenes and their secondary organic aerosol in Delhi, India D. Bryant et al. 10.5194/acp-23-61-2023
- Compositional Constraints are Vital for Atmospheric PM2.5 Source Attribution over India S. Pai et al. 10.1021/acsearthspacechem.2c00150
- Assessment of ozone toxicity on cotton (Gossypium hirsutum L.) cultivars: Its defensive system and intraspecific sensitivity I. Chaudhary & D. Rathore 10.1016/j.plaphy.2021.06.054
- Real-time characterization and source apportionment of fine particulate matter in the Delhi megacity area during late winter V. Lalchandani et al. 10.1016/j.scitotenv.2021.145324
- Local incomplete combustion emissions define the PM2.5 oxidative potential in Northern India D. Bhattu et al. 10.1038/s41467-024-47785-5
- Real-time quantification and source apportionment of fine particulate matter including organics and elements in Delhi during summertime A. Shukla et al. 10.1016/j.atmosenv.2021.118598
- Influence of local meteorology and gaseous pollutant emissions on atmospheric nanoparticle concentrations in a pedestrian way in urban region K. Rajagopal et al. 10.1016/j.apr.2024.102358
3 citations as recorded by crossref.
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- Inferring Aerosol Sources from Low-Cost Air Quality Sensor Measurements: A Case Study in Delhi, India D. Hagan et al. 10.1021/acs.estlett.9b00393
- Modelling Complex Refractive Indices of Sub-micron Pure and Polluted Dust based on Compositional Sensitive Analysis . Sarla et al. 10.1007/s12647-022-00547-4
Latest update: 11 May 2025
Short summary
Delhi, India, is the most polluted megacity on the planet, posing acute challenges to public health. We report on source apportionment conducted on 15 months of highly time-resolved mass spectrometer data. We find that severe air pollution episodes are dominated by primary organic aerosol, while secondary organic aerosol dominates the fractional contributions year-round, suggesting the importance of sources as well as their atmospheric processing on pollution levels in Delhi.
Delhi, India, is the most polluted megacity on the planet, posing acute challenges to public...
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