Reduction of the concentration of particulate material at a sampling point in Cusco city at the beginning of the pandemic

Abstract The pandemic produced by SARS-CoV-2 generated various impacts on public health, the environment and other anthropogenic activities. The purpose of this study was to evaluate the reduction of air pollution due to $$PM_{2.5}$$ P M 2.5 and $$PM_{10}$$ P M 10 particulate matter in Cusco city at...

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Main Authors: Julio Warthon, Modesta Alvarez, Amanda Olarte, Yanett Quispe, Victor Jalixto, Nazaria Valencia, Mirian Mio-Diaz, Ariatna Zamalloa, Bruce Warthon
Format: Article
Language:English
Published: Nature Portfolio 2024-01-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-50955-y
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author Julio Warthon
Modesta Alvarez
Amanda Olarte
Yanett Quispe
Victor Jalixto
Nazaria Valencia
Mirian Mio-Diaz
Ariatna Zamalloa
Bruce Warthon
author_facet Julio Warthon
Modesta Alvarez
Amanda Olarte
Yanett Quispe
Victor Jalixto
Nazaria Valencia
Mirian Mio-Diaz
Ariatna Zamalloa
Bruce Warthon
author_sort Julio Warthon
collection DOAJ
description Abstract The pandemic produced by SARS-CoV-2 generated various impacts on public health, the environment and other anthropogenic activities. The purpose of this study was to evaluate the reduction of air pollution due to $$PM_{2.5}$$ P M 2.5 and $$PM_{10}$$ P M 10 particulate matter in Cusco city at the beginning of the pandemic. Social confinement in Peru began on March 16, 2020, until the end of June. These health measures caused strict isolation that resulted in a significant decrease in vehicle flow on the streets and avenues of the city of Cusco. In the first days of May, even during the time of confinement, we managed to measure air quality at a sampling point located on the campus of the Universidad Nacional de San Antonio Abad de Cusco; a reduction in air pollution due to particulate matter was observed. The evaluation was carried out using an high-volume (HiVol) 3000 particulate matter sampler and the mass of particulate matter adhered to the filters was determined by gravimetry. The concentrations of particulate matter $$PM_{2.5}$$ P M 2.5 and $$PM_{10}$$ P M 10 obtained pre-pandemic were compared with those recorded at the beginning of the pandemic. The results revealed a significant average reduction in the concentration of $$PM_{10}$$ P M 10 and $$PM_{2.5}$$ P M 2.5 , reaching − 57.43% and − 59.52%, respectively, compared to pre-pandemic values. At the same time, its relationship with meteorological parameters and Google mobility data was evaluated and it was concluded that these parameters did not significantly affect the reduction of particulate matter. This study reveals the positive effects of the pandemic in reducing air pollution and the confinement measures had as a secondary effect on the decrease in air pollution in Cusco City.
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spelling doaj.art-13060fd6806340f88f4d080c6b0d50122024-01-14T12:18:32ZengNature PortfolioScientific Reports2045-23222024-01-0114111210.1038/s41598-023-50955-yReduction of the concentration of particulate material at a sampling point in Cusco city at the beginning of the pandemicJulio Warthon0Modesta Alvarez1Amanda Olarte2Yanett Quispe3Victor Jalixto4Nazaria Valencia5Mirian Mio-Diaz6Ariatna Zamalloa7Bruce Warthon8Departamento Académico de Física, Universidad Nacional de San Antonio Abad del CuscoDepartamento Académico de Biología, Universidad Nacional de San Antonio Abad del CuscoDepartamento Académico de Química, Universidad Nacional de San Antonio Abad del CuscoDepartamento Académico de Física, Universidad Nacional de San Antonio Abad del CuscoDepartamento Académico de Física, Universidad Nacional de San Antonio Abad del CuscoDepartamento Académico de Química, Universidad Nacional de San Antonio Abad del CuscoDepartamento Académico de Biología, Universidad Nacional de San Antonio Abad del CuscoDepartamento Académico de Física, Universidad Nacional de San Antonio Abad del CuscoDepartamento Académico de Física, Universidad Nacional de San Antonio Abad del CuscoAbstract The pandemic produced by SARS-CoV-2 generated various impacts on public health, the environment and other anthropogenic activities. The purpose of this study was to evaluate the reduction of air pollution due to $$PM_{2.5}$$ P M 2.5 and $$PM_{10}$$ P M 10 particulate matter in Cusco city at the beginning of the pandemic. Social confinement in Peru began on March 16, 2020, until the end of June. These health measures caused strict isolation that resulted in a significant decrease in vehicle flow on the streets and avenues of the city of Cusco. In the first days of May, even during the time of confinement, we managed to measure air quality at a sampling point located on the campus of the Universidad Nacional de San Antonio Abad de Cusco; a reduction in air pollution due to particulate matter was observed. The evaluation was carried out using an high-volume (HiVol) 3000 particulate matter sampler and the mass of particulate matter adhered to the filters was determined by gravimetry. The concentrations of particulate matter $$PM_{2.5}$$ P M 2.5 and $$PM_{10}$$ P M 10 obtained pre-pandemic were compared with those recorded at the beginning of the pandemic. The results revealed a significant average reduction in the concentration of $$PM_{10}$$ P M 10 and $$PM_{2.5}$$ P M 2.5 , reaching − 57.43% and − 59.52%, respectively, compared to pre-pandemic values. At the same time, its relationship with meteorological parameters and Google mobility data was evaluated and it was concluded that these parameters did not significantly affect the reduction of particulate matter. This study reveals the positive effects of the pandemic in reducing air pollution and the confinement measures had as a secondary effect on the decrease in air pollution in Cusco City.https://doi.org/10.1038/s41598-023-50955-y
spellingShingle Julio Warthon
Modesta Alvarez
Amanda Olarte
Yanett Quispe
Victor Jalixto
Nazaria Valencia
Mirian Mio-Diaz
Ariatna Zamalloa
Bruce Warthon
Reduction of the concentration of particulate material at a sampling point in Cusco city at the beginning of the pandemic
Scientific Reports
title Reduction of the concentration of particulate material at a sampling point in Cusco city at the beginning of the pandemic
title_full Reduction of the concentration of particulate material at a sampling point in Cusco city at the beginning of the pandemic
title_fullStr Reduction of the concentration of particulate material at a sampling point in Cusco city at the beginning of the pandemic
title_full_unstemmed Reduction of the concentration of particulate material at a sampling point in Cusco city at the beginning of the pandemic
title_short Reduction of the concentration of particulate material at a sampling point in Cusco city at the beginning of the pandemic
title_sort reduction of the concentration of particulate material at a sampling point in cusco city at the beginning of the pandemic
url https://doi.org/10.1038/s41598-023-50955-y
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