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The changes in the air quality of Wazirpur, Delhi due to the COVID-19 shutdown
The Corona Virus Disease (COVID)-19 pandemic led to the death of countless lives worldwide, which forced most countries and cities to impose a shutdown, bringing a halt to major human activities. While this shutdown caused a significant economic crisis, resulting in loss of livelihood to many people...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Author(s). Published by Elsevier Ltd.
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8784257/ http://dx.doi.org/10.1016/j.clce.2022.100001 |
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author | Agarwal, Vivek Kumar, Amit |
author_facet | Agarwal, Vivek Kumar, Amit |
author_sort | Agarwal, Vivek |
collection | PubMed |
description | The Corona Virus Disease (COVID)-19 pandemic led to the death of countless lives worldwide, which forced most countries and cities to impose a shutdown, bringing a halt to major human activities. While this shutdown caused a significant economic crisis, resulting in loss of livelihood to many people, it caused relief to the environment. Delhi in India is amongst the highest air-contaminated cities worldwide, and the COVID-19 shutdown helped improve air quality. This paper studied the variation in air quality for Wazirpur, Delhi, during shutdown in 2020 and a similar time-period in 2019. The data was acquired from the Central Pollution Control Board (CPCB) open-access portal for six air contaminants viz. Carbon-monoxide (CO), Nitrogen-dioxide (NO(2)), Ozone (O(3)), Particulate Matter (PM(10) and PM(2.5)), and Sulphur-dioxide (SO(2)). Inferential statistical analysis was done to determine the trend in air quality variation during the shutdown compared to the previous year. Mean, standard deviation, percentage difference, linear regression and correlation analysis were made, and variable reduction in most air contaminants was noted. It was noted that for most of our observed time, the concentration of NO(2), O(3), PM(10), PM(2.5) and SO(2) in 2020 is lower than in 2019, while the concentration of CO is greater in 2020 than the corresponding time in 2019. The maximum decline was observed for PM10 (70.5%) during phase-1, while the maximum increase was observed in CO (32.3%) during phase-1. As the shutdown restrictions were eased out, an increase in the air contaminants was also noted. |
format | Online Article Text |
id | pubmed-8784257 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | The Author(s). Published by Elsevier Ltd. |
record_format | MEDLINE/PubMed |
spelling | pubmed-87842572022-01-24 The changes in the air quality of Wazirpur, Delhi due to the COVID-19 shutdown Agarwal, Vivek Kumar, Amit Cleaner Chemical Engineering Article The Corona Virus Disease (COVID)-19 pandemic led to the death of countless lives worldwide, which forced most countries and cities to impose a shutdown, bringing a halt to major human activities. While this shutdown caused a significant economic crisis, resulting in loss of livelihood to many people, it caused relief to the environment. Delhi in India is amongst the highest air-contaminated cities worldwide, and the COVID-19 shutdown helped improve air quality. This paper studied the variation in air quality for Wazirpur, Delhi, during shutdown in 2020 and a similar time-period in 2019. The data was acquired from the Central Pollution Control Board (CPCB) open-access portal for six air contaminants viz. Carbon-monoxide (CO), Nitrogen-dioxide (NO(2)), Ozone (O(3)), Particulate Matter (PM(10) and PM(2.5)), and Sulphur-dioxide (SO(2)). Inferential statistical analysis was done to determine the trend in air quality variation during the shutdown compared to the previous year. Mean, standard deviation, percentage difference, linear regression and correlation analysis were made, and variable reduction in most air contaminants was noted. It was noted that for most of our observed time, the concentration of NO(2), O(3), PM(10), PM(2.5) and SO(2) in 2020 is lower than in 2019, while the concentration of CO is greater in 2020 than the corresponding time in 2019. The maximum decline was observed for PM10 (70.5%) during phase-1, while the maximum increase was observed in CO (32.3%) during phase-1. As the shutdown restrictions were eased out, an increase in the air contaminants was also noted. The Author(s). Published by Elsevier Ltd. 2022-03 2022-01-24 /pmc/articles/PMC8784257/ http://dx.doi.org/10.1016/j.clce.2022.100001 Text en © 2022 The Author(s) Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active. |
spellingShingle | Article Agarwal, Vivek Kumar, Amit The changes in the air quality of Wazirpur, Delhi due to the COVID-19 shutdown |
title | The changes in the air quality of Wazirpur, Delhi due to the COVID-19 shutdown |
title_full | The changes in the air quality of Wazirpur, Delhi due to the COVID-19 shutdown |
title_fullStr | The changes in the air quality of Wazirpur, Delhi due to the COVID-19 shutdown |
title_full_unstemmed | The changes in the air quality of Wazirpur, Delhi due to the COVID-19 shutdown |
title_short | The changes in the air quality of Wazirpur, Delhi due to the COVID-19 shutdown |
title_sort | changes in the air quality of wazirpur, delhi due to the covid-19 shutdown |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8784257/ http://dx.doi.org/10.1016/j.clce.2022.100001 |
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