Air quality in the New Delhi metropolis under COVID-19 lockdown
Air pollution has been on continuous rise with increase in industrialization in metropolitan cities of the world. Several measures including strict climate laws and reduction in the number of vehicles were implemented by several nations. The COVID-19 pandemic provided a great opportunity to understa...
| मुख्य लेखकों: | , , |
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| अन्य लेखक: | |
| स्वरूप: | Journal Article |
| भाषा: | English |
| प्रकाशित: |
2022
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| विषय: | |
| ऑनलाइन पहुंच: | https://hdl.handle.net/10356/163910 |
| _version_ | 1826122451145195520 |
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| author | Kaloni, Dewansh Lee, Yee Hui Dev, Soumyabrata |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Kaloni, Dewansh Lee, Yee Hui Dev, Soumyabrata |
| author_sort | Kaloni, Dewansh |
| collection | NTU |
| description | Air pollution has been on continuous rise with increase in industrialization in metropolitan cities of the world. Several measures including strict climate laws and reduction in the number of vehicles were implemented by several nations. The COVID-19 pandemic provided a great opportunity to understand the daily human activities effect on air pollution. Majority nations restricted industrial activities and vehicular traffic to a large extent as a measure to restrict COVID-19 spread. In this paper, we analyzed the impact of such COVID19-induced lockdown on the air quality of the city of New Delhi, India. We analyzed the average concentration of common gaseous pollutants viz. sulfur dioxide (SO2), ozone (O3), nitrogen dioxide (NO2), and carbon monoxide (CO). These concentrations were obtained from the tropospheric column of Sentinel-5P (an earth observation satellite of European Space Agency) data. We observed that the city observed a significant drop in the level of atmospheric pollutant's concentration for all the major pollutants as a result of strict lockdown measure. Such findings are also validated with pollutant data obtained from ground based monitoring stations. We observed that near-surface pollutant concentration dropped significantly by 50% for PM2.5, 71.9% for NO2, and 88% for CO, after the lockdown period. Such studies would pave the path for implementing future air pollution control measures by environmentalists. |
| first_indexed | 2024-10-01T05:48:42Z |
| format | Journal Article |
| id | ntu-10356/163910 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:48:42Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1639102022-12-21T08:19:25Z Air quality in the New Delhi metropolis under COVID-19 lockdown Kaloni, Dewansh Lee, Yee Hui Dev, Soumyabrata School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Sustainable Development Goals Lockdown Air pollution has been on continuous rise with increase in industrialization in metropolitan cities of the world. Several measures including strict climate laws and reduction in the number of vehicles were implemented by several nations. The COVID-19 pandemic provided a great opportunity to understand the daily human activities effect on air pollution. Majority nations restricted industrial activities and vehicular traffic to a large extent as a measure to restrict COVID-19 spread. In this paper, we analyzed the impact of such COVID19-induced lockdown on the air quality of the city of New Delhi, India. We analyzed the average concentration of common gaseous pollutants viz. sulfur dioxide (SO2), ozone (O3), nitrogen dioxide (NO2), and carbon monoxide (CO). These concentrations were obtained from the tropospheric column of Sentinel-5P (an earth observation satellite of European Space Agency) data. We observed that the city observed a significant drop in the level of atmospheric pollutant's concentration for all the major pollutants as a result of strict lockdown measure. Such findings are also validated with pollutant data obtained from ground based monitoring stations. We observed that near-surface pollutant concentration dropped significantly by 50% for PM2.5, 71.9% for NO2, and 88% for CO, after the lockdown period. Such studies would pave the path for implementing future air pollution control measures by environmentalists. Published version This research was conducted with the financial support of Science Foundation Ireland under Grant Agreement No. 13/RC/2106_P2 at the ADAPT SFI Research Centre at University College Dublin. ADAPT, the SFI Research Centre for AI-Driven Digital Content Technology, is funded by Science Foundation Ireland through the SFI Research Centres Programme. 2022-12-21T08:19:25Z 2022-12-21T08:19:25Z 2022 Journal Article Kaloni, D., Lee, Y. H. & Dev, S. (2022). Air quality in the New Delhi metropolis under COVID-19 lockdown. Systems and Soft Computing, 4, 200035-. https://dx.doi.org/10.1016/j.sasc.2022.200035 2772-9419 https://hdl.handle.net/10356/163910 10.1016/j.sasc.2022.200035 2-s2.0-85132256363 4 200035 en Systems and Soft Computing © 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering Sustainable Development Goals Lockdown Kaloni, Dewansh Lee, Yee Hui Dev, Soumyabrata Air quality in the New Delhi metropolis under COVID-19 lockdown |
| title | Air quality in the New Delhi metropolis under COVID-19 lockdown |
| title_full | Air quality in the New Delhi metropolis under COVID-19 lockdown |
| title_fullStr | Air quality in the New Delhi metropolis under COVID-19 lockdown |
| title_full_unstemmed | Air quality in the New Delhi metropolis under COVID-19 lockdown |
| title_short | Air quality in the New Delhi metropolis under COVID-19 lockdown |
| title_sort | air quality in the new delhi metropolis under covid 19 lockdown |
| topic | Engineering::Electrical and electronic engineering Sustainable Development Goals Lockdown |
| url | https://hdl.handle.net/10356/163910 |
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