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Role of vehicular emissions in urban air quality: The COVID-19 lockdown experiment
While the decrease in air pollutant concentration during the COVID-19 lockdown is well documented, neighborhood-scale and multi-city data have not yet been explored systematically to derive a generalizable quantitative link to the drop in vehicular traffic. To bridge this gap, high spatial resolutio...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier Ltd.
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9771761/ https://www.ncbi.nlm.nih.gov/pubmed/36573137 http://dx.doi.org/10.1016/j.trd.2022.103580 |
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author | Llaguno-Munitxa, Maider Bou-Zeid, Elie |
author_facet | Llaguno-Munitxa, Maider Bou-Zeid, Elie |
author_sort | Llaguno-Munitxa, Maider |
collection | PubMed |
description | While the decrease in air pollutant concentration during the COVID-19 lockdown is well documented, neighborhood-scale and multi-city data have not yet been explored systematically to derive a generalizable quantitative link to the drop in vehicular traffic. To bridge this gap, high spatial resolution air quality and georeferenced traffic datasets were compiled for the city of London during three weeks with significant differences in traffic. The London analysis was then augmented with a meta-analysis of lower-resolution studies from 12 other cities. The results confirm that the improvement in air quality can be partially attributed to the drop of traffic density, and more importantly quantifies the elasticity (0.71 for NO(2) & 0.56 for PM(2.5)) of their linkages. The findings can also inform on the future impacts of the ongoing shift to electric vehicles and micro-mobility on urban air quality. |
format | Online Article Text |
id | pubmed-9771761 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Elsevier Ltd. |
record_format | MEDLINE/PubMed |
spelling | pubmed-97717612022-12-22 Role of vehicular emissions in urban air quality: The COVID-19 lockdown experiment Llaguno-Munitxa, Maider Bou-Zeid, Elie Transp Res D Transp Environ Article While the decrease in air pollutant concentration during the COVID-19 lockdown is well documented, neighborhood-scale and multi-city data have not yet been explored systematically to derive a generalizable quantitative link to the drop in vehicular traffic. To bridge this gap, high spatial resolution air quality and georeferenced traffic datasets were compiled for the city of London during three weeks with significant differences in traffic. The London analysis was then augmented with a meta-analysis of lower-resolution studies from 12 other cities. The results confirm that the improvement in air quality can be partially attributed to the drop of traffic density, and more importantly quantifies the elasticity (0.71 for NO(2) & 0.56 for PM(2.5)) of their linkages. The findings can also inform on the future impacts of the ongoing shift to electric vehicles and micro-mobility on urban air quality. Elsevier Ltd. 2023-02 2022-12-22 /pmc/articles/PMC9771761/ /pubmed/36573137 http://dx.doi.org/10.1016/j.trd.2022.103580 Text en © 2022 Elsevier Ltd. All rights reserved. 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 Llaguno-Munitxa, Maider Bou-Zeid, Elie Role of vehicular emissions in urban air quality: The COVID-19 lockdown experiment |
title | Role of vehicular emissions in urban air quality: The COVID-19 lockdown experiment |
title_full | Role of vehicular emissions in urban air quality: The COVID-19 lockdown experiment |
title_fullStr | Role of vehicular emissions in urban air quality: The COVID-19 lockdown experiment |
title_full_unstemmed | Role of vehicular emissions in urban air quality: The COVID-19 lockdown experiment |
title_short | Role of vehicular emissions in urban air quality: The COVID-19 lockdown experiment |
title_sort | role of vehicular emissions in urban air quality: the covid-19 lockdown experiment |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9771761/ https://www.ncbi.nlm.nih.gov/pubmed/36573137 http://dx.doi.org/10.1016/j.trd.2022.103580 |
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