Impact of COVID-19 Event on the Air Quality in Iran
Abstract The first novel coronavirus case was confirmed in Iran in mid-February 2020. This followed by the enforcement of lockdown to tackle this contagious disease. This study aims to examine the potential effects of the COVID-19 lockdown on air quality in Iran. From 21st March to 21st April in 201...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Springer
2024-12-01
|
| Series: | Aerosol and Air Quality Research |
| Subjects: | |
| Online Access: | https://doi.org/10.4209/aaqr.2020.05.0205 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1823862896753377280 |
|---|---|
| author | Parya Broomandi Ferhat Karaca Amirhossein Nikfal Ali Jahanbakhshi Mahsa Tamjidi Jong Ryeol Kim |
| author_facet | Parya Broomandi Ferhat Karaca Amirhossein Nikfal Ali Jahanbakhshi Mahsa Tamjidi Jong Ryeol Kim |
| author_sort | Parya Broomandi |
| collection | DOAJ |
| description | Abstract The first novel coronavirus case was confirmed in Iran in mid-February 2020. This followed by the enforcement of lockdown to tackle this contagious disease. This study aims to examine the potential effects of the COVID-19 lockdown on air quality in Iran. From 21st March to 21st April in 2019 and 2020, The Data were gathered from 12 air quality stations to analyse six criteria pollutants, namely O3, NO2, SO2, CO, PM10, and PM2.5. Due to the lack of ground-level measurements, using satellite data equipped us to assess changes in air quality during the study on Iranian megacities, especially in Tehran, i.e., the capital of Iran. In this city, concentrations of primary pollutants (SO2 5–28%, NO2 1–33%, CO 5–41%, PM10 1.4–30%) decreased with spatial variations. Although, still SO2, NO2, and PM10 exceeded the WHO daily limit levels for 31 days, 31 days, and four days, respectively. Conversely, O3 and PM2.5 increased by 0.5–103% and 2–50%. In terms of the national air quality, SO2 and NO2 levels decreased while AOD increased during the lockdown. Unfavourable meteorological conditions hindered pollutant dispersion. Moreover, reductions in the height of planetary boundary layer and rainfall were observed during the lockdown period. Despite the adverse weather conditions, a decrease in primary pollutant levels, confirms the possible improvements on the air quality in Iran. |
| format | Article |
| id | doaj-art-7187933e6163471680de222808d832da |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-7187933e6163471680de222808d832da2025-02-09T12:19:21ZengSpringerAerosol and Air Quality Research1680-85842071-14092024-12-012081793180410.4209/aaqr.2020.05.0205Impact of COVID-19 Event on the Air Quality in IranParya Broomandi0Ferhat Karaca1Amirhossein Nikfal2Ali Jahanbakhshi3Mahsa Tamjidi4Jong Ryeol Kim5Department of Civil and Environmental Engineering, Nazarbayev UniversityDepartment of Civil and Environmental Engineering, Nazarbayev UniversityAtmospheric Science and Meteorological Research CenterEnvironmental Center, Lancaster UniversityFaculty of Natural Resources and Environment, Islamic Azad University, Science and Research Branch of TehranDepartment of Civil and Environmental Engineering, Nazarbayev UniversityAbstract The first novel coronavirus case was confirmed in Iran in mid-February 2020. This followed by the enforcement of lockdown to tackle this contagious disease. This study aims to examine the potential effects of the COVID-19 lockdown on air quality in Iran. From 21st March to 21st April in 2019 and 2020, The Data were gathered from 12 air quality stations to analyse six criteria pollutants, namely O3, NO2, SO2, CO, PM10, and PM2.5. Due to the lack of ground-level measurements, using satellite data equipped us to assess changes in air quality during the study on Iranian megacities, especially in Tehran, i.e., the capital of Iran. In this city, concentrations of primary pollutants (SO2 5–28%, NO2 1–33%, CO 5–41%, PM10 1.4–30%) decreased with spatial variations. Although, still SO2, NO2, and PM10 exceeded the WHO daily limit levels for 31 days, 31 days, and four days, respectively. Conversely, O3 and PM2.5 increased by 0.5–103% and 2–50%. In terms of the national air quality, SO2 and NO2 levels decreased while AOD increased during the lockdown. Unfavourable meteorological conditions hindered pollutant dispersion. Moreover, reductions in the height of planetary boundary layer and rainfall were observed during the lockdown period. Despite the adverse weather conditions, a decrease in primary pollutant levels, confirms the possible improvements on the air quality in Iran.https://doi.org/10.4209/aaqr.2020.05.0205SARS-CoV-2Atmospheric pollutionLockdownTehranNitrogen dioxideCarbon monoxide |
| spellingShingle | Parya Broomandi Ferhat Karaca Amirhossein Nikfal Ali Jahanbakhshi Mahsa Tamjidi Jong Ryeol Kim Impact of COVID-19 Event on the Air Quality in Iran Aerosol and Air Quality Research SARS-CoV-2 Atmospheric pollution Lockdown Tehran Nitrogen dioxide Carbon monoxide |
| title | Impact of COVID-19 Event on the Air Quality in Iran |
| title_full | Impact of COVID-19 Event on the Air Quality in Iran |
| title_fullStr | Impact of COVID-19 Event on the Air Quality in Iran |
| title_full_unstemmed | Impact of COVID-19 Event on the Air Quality in Iran |
| title_short | Impact of COVID-19 Event on the Air Quality in Iran |
| title_sort | impact of covid 19 event on the air quality in iran |
| topic | SARS-CoV-2 Atmospheric pollution Lockdown Tehran Nitrogen dioxide Carbon monoxide |
| url | https://doi.org/10.4209/aaqr.2020.05.0205 |
| work_keys_str_mv | AT paryabroomandi impactofcovid19eventontheairqualityiniran AT ferhatkaraca impactofcovid19eventontheairqualityiniran AT amirhosseinnikfal impactofcovid19eventontheairqualityiniran AT alijahanbakhshi impactofcovid19eventontheairqualityiniran AT mahsatamjidi impactofcovid19eventontheairqualityiniran AT jongryeolkim impactofcovid19eventontheairqualityiniran |