Articles | Volume 18, issue 16
https://doi.org/10.5194/acp-18-11949-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-18-11949-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
21 Aug 2018
Research article |
| 21 Aug 2018
Variations in surface ozone and carbon monoxide in the Kathmandu Valley and surrounding broader regions during SusKat-ABC field campaign: role of local and regional sources
Piyush Bhardwaj
Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital, 263002, India
Department of Physics, DSB Campus, Kumaun University, Nainital 263001, India
now at: Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital, 263002, India
Maheswar Rupakheti
Institute for Advanced Sustainability Studies (IASS), Potsdam, 14467, Germany
Aurelia Lupascu
Institute for Advanced Sustainability Studies (IASS), Potsdam, 14467, Germany
Andrea Mues
Institute for Advanced Sustainability Studies (IASS), Potsdam, 14467, Germany
Arnico Kumar Panday
International Centre for Integrated Mountain Development (ICIMOD), Kathmandu, 44700, Nepal
Rajesh Kumar
National Center for Atmospheric Research (NCAR) Boulder, 80301, USA
Khadak Singh Mahata
Institute for Advanced Sustainability Studies (IASS), Potsdam, 14467, Germany
Shyam Lal
Physical Research Laboratory (PRL), Ahmedabad, 380009, India
Harish C. Chandola
Department of Physics, DSB Campus, Kumaun University, Nainital 263001, India
Mark G. Lawrence
Institute for Advanced Sustainability Studies (IASS), Potsdam, 14467, Germany
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- Regional air quality: biomass burning impacts of SO2 emissions on air quality in the Himalayan region of Uttarakhand, India A. Gautam et al. 10.1007/s11869-023-01426-w
- Assessing the intra-urban variability of nitrogen oxides and ozone across a highly heterogeneous urban area C. El-Khoury et al. 10.1007/s10661-021-09414-2
- A Rossby wave breaking-induced enhancement in the tropospheric ozone over the Central Himalayan region K. Kumar et al. 10.1016/j.atmosenv.2020.117356
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- Remote sensing study of ozone, NO2, and CO: some contrary effects of SARS-CoV-2 lockdown over India P. Rawat & M. Naja 10.1007/s11356-021-17441-2
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- A systems lens to evaluate the compound human health impacts of anthropogenic activities D. Singh et al. 10.1016/j.oneear.2021.08.006
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- Air quality trends of the Kathmandu Valley: A satellite, observation and modeling perspective P. Mahapatra et al. 10.1016/j.atmosenv.2018.12.043
33 citations as recorded by crossref.
- Online observation of light non-methane hydrocarbons (C2–C5) over the central Himalayas: Influence of the Indo-Gangetic Plain region M. Rajwar et al. 10.1016/j.apr.2024.102078
- Submicron Aerosol Composition and Source Contribution across the Kathmandu Valley, Nepal, in Winter B. Werden et al. 10.1021/acsearthspacechem.2c00226
- Regional air quality: biomass burning impacts of SO2 emissions on air quality in the Himalayan region of Uttarakhand, India A. Gautam et al. 10.1007/s11869-023-01426-w
- Assessing the intra-urban variability of nitrogen oxides and ozone across a highly heterogeneous urban area C. El-Khoury et al. 10.1007/s10661-021-09414-2
- A Rossby wave breaking-induced enhancement in the tropospheric ozone over the Central Himalayan region K. Kumar et al. 10.1016/j.atmosenv.2020.117356
- Wintertime Air Quality across the Kathmandu Valley, Nepal: Concentration, Composition, and Sources of Fine and Coarse Particulate Matter M. Islam et al. 10.1021/acsearthspacechem.2c00243
- Ozone variability, its formation potential and crops losses in the himalayan foothills M. Rajwar et al. 10.1007/s11869-024-01572-9
- First surface measurement of variation of Cloud Condensation Nuclei (CCN) concentration over the Pristine Himalayan region of Garhwal, Uttarakhand, India A. Gautam et al. 10.1016/j.atmosenv.2020.118123
- Remote sensing study of ozone, NO2, and CO: some contrary effects of SARS-CoV-2 lockdown over India P. Rawat & M. Naja 10.1007/s11356-021-17441-2
- Influence of forest fire episodes on the distribution of gaseous air pollutants over Uttarakhand, India Y. Yarragunta et al. 10.1080/15481603.2020.1712100
- Assessment of Ozone and Nitrogen Oxides Variations in Urban Region of Patna, India N. Kumar et al. 10.1080/10406026.2021.1957588
- Reconstructing PM2.5 Data Record for the Kathmandu Valley Using a Machine Learning Model S. Bhatta & Y. Yang 10.3390/atmos14071073
- Molecular characterization of organic aerosols in the Kathmandu Valley, Nepal: insights into primary and secondary sources X. Wan et al. 10.5194/acp-19-2725-2019
- Ambient air quality in the Kathmandu Valley, Nepal, during the pre-monsoon: concentrations and sources of particulate matter and trace gases M. Islam et al. 10.5194/acp-20-2927-2020
- Implications of Site‐specific Mass Absorption Cross‐section (MAC) to Black Carbon Observations at a High‐altitude Site in the Central Himalaya P. Srivastava et al. 10.1007/s13143-021-00241-6
- Inter-annual and seasonal variations in optical and physical characteristics of columnar aerosols over the Pokhara Valley in the Himalayan foothills S. Ramachandran & M. Rupakheti 10.1016/j.atmosres.2020.105254
- Ozone variability: Influence by its precursors and meteorological parameters- an investigation A. Kanchana et al. 10.1016/j.jastp.2020.105468
- A model-ready emission inventory for crop residue open burning in the context of Nepal B. Das et al. 10.1016/j.envpol.2020.115069
- Performance of AIRS ozone retrieval over the central Himalayas: use of ozonesonde and other satellite datasets P. Rawat et al. 10.5194/amt-16-889-2023
- Variation in Air Quality over Delhi Region: A Comparative Study for 2019 and 2020 S. Shankar & R. Gadi 10.1007/s41810-022-00144-7
- Distribution of volatile organic compounds over Indian subcontinent during winter: WRF-chem simulation versus observations L. Chutia et al. 10.1016/j.envpol.2019.05.097
- Observation and analysis of spatiotemporal characteristics of surface ozone and carbon monoxide at multiple sites in the Kathmandu Valley, Nepal K. Mahata et al. 10.5194/acp-18-14113-2018
- Carbonaceous aerosol characteristics on the Third Pole: A primary study based on the Atmospheric Pollution and Cryospheric Change (APCC) network P. Chen et al. 10.1016/j.envpol.2019.06.112
- Surface ozone in the Doon Valley of the Himalayan foothills during spring N. Ojha et al. 10.1007/s11356-019-05085-2
- Nitrogenous and carbonaceous aerosols in PM2.5 and TSP during pre-monsoon: Characteristics and sources in the highly polluted mountain valley H. Bhattarai et al. 10.1016/j.jes.2021.06.018
- Sub-kilometer dispersion simulation of a CO tracer for an inter-Andean urban valley J. Henao et al. 10.1016/j.apr.2020.02.005
- Exploring the potential of machine learning for simulations of urban ozone variability N. Ojha et al. 10.1038/s41598-021-01824-z
- A systems lens to evaluate the compound human health impacts of anthropogenic activities D. Singh et al. 10.1016/j.oneear.2021.08.006
- Pre-monsoon submicron aerosol composition and source contribution in the Kathmandu Valley, Nepal B. Werden et al. 10.1039/D2EA00008C
- Evaluation of urban ozone in the Brahmaputra River Valley U. Dumka et al. 10.1016/j.apr.2019.12.013
- Light absorption properties of elemental carbon (EC) and water-soluble brown carbon (WS–BrC) in the Kathmandu Valley, Nepal: A 5-year study P. Chen et al. 10.1016/j.envpol.2020.114239
- Effectiveness of vehicle-free zone in reducing air pollution J. Khadgi et al. 10.1007/s13762-020-02977-6
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1 citations as recorded by crossref.
Discussed (final revised paper)
Latest update: 25 Apr 2024
Short summary
This study provides information about the regional variabilities in some of the pollutants using observations in Nepal and India. It is shown that agricultural crop residue burning leads to a significant enhancement in ozone and CO over a wider region. Further, the wintertime higher ozone levels are shown to be largely due to local emissions, while regional transport could be important in spring and hence shows the role of regional sources versus local sources in the Kathmandu Valley.
This study provides information about the regional variabilities in some of the pollutants using...
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