Spatio-temporal air quality assessment in Tehran, Iran, during the COVID-19 lockdown periods
Based on ground-based and satellite-based data, spatio-temporal analyses of air quality in Tehran were carried out during the lockdown periods (February-April) in 2020 and 2021. We evaluated the differences in temporal emissions of six air pollutants (NO2, CO, SO2, O3, PM2.5, and PM10) at various ti...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2023-12-01
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| Series: | Geocarto International |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/10106049.2023.2169374 |
| _version_ | 1797681610395484160 |
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| author | Mozhgan Bagherinia Siamak Bodaghpour Neamat Karimi Fatemeh Ghasempour Muhammad Bilal Alaa Mhawish |
| author_facet | Mozhgan Bagherinia Siamak Bodaghpour Neamat Karimi Fatemeh Ghasempour Muhammad Bilal Alaa Mhawish |
| author_sort | Mozhgan Bagherinia |
| collection | DOAJ |
| description | Based on ground-based and satellite-based data, spatio-temporal analyses of air quality in Tehran were carried out during the lockdown periods (February-April) in 2020 and 2021. We evaluated the differences in temporal emissions of six air pollutants (NO2, CO, SO2, O3, PM2.5, and PM10) at various time scales, including diurnal, monthly, and relative changes. The results of ground-based measurements indicated that for all pollutants except O3, the magnitude decreased in 2020 (11-42%) compared to the baseline period (2015-2021). As a result of eased restrictions and unfavorable meteorological conditions, the reduction in air pollutants was lower in 2021 (5-32%), and PM2.5 and PM10 levels increased (3.75 and 11.22%). Satellite-based concentrations (NO2, CO, SO2, and AOD) varied from −8 to 54% in 2020 and from −41 to 60% in 2021 compared to 2019 as the pre-lockdown year. Concerning AOD, the trend is consistent with dust events during March and April in our region. |
| first_indexed | 2024-03-11T23:47:25Z |
| format | Article |
| id | doaj.art-d1db7004f1d946d88a377ea7a7b5c057 |
| institution | Directory Open Access Journal |
| issn | 1010-6049 1752-0762 |
| language | English |
| last_indexed | 2024-03-11T23:47:25Z |
| publishDate | 2023-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Geocarto International |
| spelling | doaj.art-d1db7004f1d946d88a377ea7a7b5c0572023-09-19T09:13:17ZengTaylor & Francis GroupGeocarto International1010-60491752-07622023-12-010010.1080/10106049.2023.21693742169374Spatio-temporal air quality assessment in Tehran, Iran, during the COVID-19 lockdown periodsMozhgan Bagherinia0Siamak Bodaghpour1Neamat Karimi2Fatemeh Ghasempour3Muhammad Bilal4Alaa Mhawish5Faculty of Civil Engineering, K. N. Toosi University of TechnologyFaculty of Civil Engineering, K. N. Toosi University of TechnologyDepartment of Water Resources Study and Research, Water Research InstituteDepartment of Geomatics Engineering, Bulent Ecevit UniversitySchool of Marine Science (SMS), Nanjing University of Information Science and Technology (NUIST)School of Marine Science (SMS), Nanjing University of Information Science and Technology (NUIST)Based on ground-based and satellite-based data, spatio-temporal analyses of air quality in Tehran were carried out during the lockdown periods (February-April) in 2020 and 2021. We evaluated the differences in temporal emissions of six air pollutants (NO2, CO, SO2, O3, PM2.5, and PM10) at various time scales, including diurnal, monthly, and relative changes. The results of ground-based measurements indicated that for all pollutants except O3, the magnitude decreased in 2020 (11-42%) compared to the baseline period (2015-2021). As a result of eased restrictions and unfavorable meteorological conditions, the reduction in air pollutants was lower in 2021 (5-32%), and PM2.5 and PM10 levels increased (3.75 and 11.22%). Satellite-based concentrations (NO2, CO, SO2, and AOD) varied from −8 to 54% in 2020 and from −41 to 60% in 2021 compared to 2019 as the pre-lockdown year. Concerning AOD, the trend is consistent with dust events during March and April in our region.http://dx.doi.org/10.1080/10106049.2023.2169374lockdownair pollutantsremote sensingmeteorological data |
| spellingShingle | Mozhgan Bagherinia Siamak Bodaghpour Neamat Karimi Fatemeh Ghasempour Muhammad Bilal Alaa Mhawish Spatio-temporal air quality assessment in Tehran, Iran, during the COVID-19 lockdown periods Geocarto International lockdown air pollutants remote sensing meteorological data |
| title | Spatio-temporal air quality assessment in Tehran, Iran, during the COVID-19 lockdown periods |
| title_full | Spatio-temporal air quality assessment in Tehran, Iran, during the COVID-19 lockdown periods |
| title_fullStr | Spatio-temporal air quality assessment in Tehran, Iran, during the COVID-19 lockdown periods |
| title_full_unstemmed | Spatio-temporal air quality assessment in Tehran, Iran, during the COVID-19 lockdown periods |
| title_short | Spatio-temporal air quality assessment in Tehran, Iran, during the COVID-19 lockdown periods |
| title_sort | spatio temporal air quality assessment in tehran iran during the covid 19 lockdown periods |
| topic | lockdown air pollutants remote sensing meteorological data |
| url | http://dx.doi.org/10.1080/10106049.2023.2169374 |
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