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Environmental impacts of pre/during and post-lockdown periods on prominent air pollutants in France

The nationwide lockdown inflicted by the global COVID-19 disease epidemic and imposed during 57 days in France was not immune to fluctuations in atmospheric pollutant concentrations. A whole range of human activities has been suspended Monday 17 March 2020 in all French regions. Since then experimen...

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Autores principales: Ikhlasse, Hamzaoui, Benjamin, Duthil, Vincent, Courboulay, Hicham, Medromi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Netherlands 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7825385/
https://www.ncbi.nlm.nih.gov/pubmed/33519298
http://dx.doi.org/10.1007/s10668-021-01241-2
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author Ikhlasse, Hamzaoui
Benjamin, Duthil
Vincent, Courboulay
Hicham, Medromi
author_facet Ikhlasse, Hamzaoui
Benjamin, Duthil
Vincent, Courboulay
Hicham, Medromi
author_sort Ikhlasse, Hamzaoui
collection PubMed
description The nationwide lockdown inflicted by the global COVID-19 disease epidemic and imposed during 57 days in France was not immune to fluctuations in atmospheric pollutant concentrations. A whole range of human activities has been suspended Monday 17 March 2020 in all French regions. Since then experiments are progressing to reflect the effectiveness of reduced emissions. In this paper, we looked at variations of pollutants prior to, during and after containment period. In a first step, we proved through experiments on eight air pollutants, how all daily maximum pollutants concentration have decreased during containment phase, apart from the ozone pollutant O(3). This Ozone pollutant has indeed increased by 27.19% during lockdown period and kept growing by 21.35% as well right after deconfinement. Indeed, the maximum daily concentrations detected in different regions of France, have decreased by 18.18%, 37.14%, 20.36%, 9.28%, 44.38%, 5.1% and 44.38%, respectively, for the pollutants SO(2), NO(2), CO, C(6)H(6), NOX, PM(2.5) and PM(10). Declining levels of other pollutants, however, were not sustained after deconfinement for NO(2), NOX and PM(10). We have reinforced these findings by classifying each pollutant according to the ATMO and AQI indexes, to better visualize their criticality throughout the three lockdown phases (Pre/During/Post). The family of air pollutant variables with their associated geographical sources was thereafter exploited to justify their approximate contribution to the daily mortality rates associated to COVID-19 across all French regions. However, more thorough study is still in progress to validate this finding. Finally, coming up to the abrupt changes in airborne pollutants experienced in this period, a question about future climate crisis was raised again. Whereby a weighting study has shown the current and very short-term French scenario (Status-Quo) in view of its current environmental path, the political responses made towards future climate change crisis and French investments done in this sense.
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spelling pubmed-78253852021-01-25 Environmental impacts of pre/during and post-lockdown periods on prominent air pollutants in France Ikhlasse, Hamzaoui Benjamin, Duthil Vincent, Courboulay Hicham, Medromi Environ Dev Sustain Case Study The nationwide lockdown inflicted by the global COVID-19 disease epidemic and imposed during 57 days in France was not immune to fluctuations in atmospheric pollutant concentrations. A whole range of human activities has been suspended Monday 17 March 2020 in all French regions. Since then experiments are progressing to reflect the effectiveness of reduced emissions. In this paper, we looked at variations of pollutants prior to, during and after containment period. In a first step, we proved through experiments on eight air pollutants, how all daily maximum pollutants concentration have decreased during containment phase, apart from the ozone pollutant O(3). This Ozone pollutant has indeed increased by 27.19% during lockdown period and kept growing by 21.35% as well right after deconfinement. Indeed, the maximum daily concentrations detected in different regions of France, have decreased by 18.18%, 37.14%, 20.36%, 9.28%, 44.38%, 5.1% and 44.38%, respectively, for the pollutants SO(2), NO(2), CO, C(6)H(6), NOX, PM(2.5) and PM(10). Declining levels of other pollutants, however, were not sustained after deconfinement for NO(2), NOX and PM(10). We have reinforced these findings by classifying each pollutant according to the ATMO and AQI indexes, to better visualize their criticality throughout the three lockdown phases (Pre/During/Post). The family of air pollutant variables with their associated geographical sources was thereafter exploited to justify their approximate contribution to the daily mortality rates associated to COVID-19 across all French regions. However, more thorough study is still in progress to validate this finding. Finally, coming up to the abrupt changes in airborne pollutants experienced in this period, a question about future climate crisis was raised again. Whereby a weighting study has shown the current and very short-term French scenario (Status-Quo) in view of its current environmental path, the political responses made towards future climate change crisis and French investments done in this sense. Springer Netherlands 2021-01-23 2021 /pmc/articles/PMC7825385/ /pubmed/33519298 http://dx.doi.org/10.1007/s10668-021-01241-2 Text en © The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature 2021 This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic.
spellingShingle Case Study
Ikhlasse, Hamzaoui
Benjamin, Duthil
Vincent, Courboulay
Hicham, Medromi
Environmental impacts of pre/during and post-lockdown periods on prominent air pollutants in France
title Environmental impacts of pre/during and post-lockdown periods on prominent air pollutants in France
title_full Environmental impacts of pre/during and post-lockdown periods on prominent air pollutants in France
title_fullStr Environmental impacts of pre/during and post-lockdown periods on prominent air pollutants in France
title_full_unstemmed Environmental impacts of pre/during and post-lockdown periods on prominent air pollutants in France
title_short Environmental impacts of pre/during and post-lockdown periods on prominent air pollutants in France
title_sort environmental impacts of pre/during and post-lockdown periods on prominent air pollutants in france
topic Case Study
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7825385/
https://www.ncbi.nlm.nih.gov/pubmed/33519298
http://dx.doi.org/10.1007/s10668-021-01241-2
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