Spatio-temporal air quality assessment in Tehran, Iran, during the COVID-19 lockdown periods

Mozhgan Bagherinia; Siamak Bodaghpour; Neamat Karimi; Fatemeh Ghasempour; Muhammad Bilal; Alaa Mhawish

doi:10.1080/10106049.2023.2169374

Spatio-temporal air quality assessment in Tehran, Iran, during the COVID-19 lockdown periods

Mozhgan Bagherinia^*
, Siamak Bodaghpour
, Neamat Karimi
, Fatemeh Ghasempour
, Muhammad Bilal
, Alaa Mhawish

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Based on ground-based and satellite-based data, spatio-temporal analyses of air quality in Tehran were carried out during the lock-down periods (February-April) in 2020 and 2021. We evaluated the differences in temporal emissions of six air pollutants (NO₂, CO, SO₂, O₃, PM_2.5, 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 PM_2.5and PM₁₀levels 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.

Original language	English
Article number	2169374
Journal	Geocarto International
Volume	38
Issue number	1
DOIs	https://doi.org/10.1080/10106049.2023.2169374
State	Published - 2023
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023 The Author(s).

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 3 Good Health and Well-being

Keywords

Lockdown
air pollutants
meteorological data
remote sensing

ASJC Scopus subject areas

Geography, Planning and Development
Water Science and Technology

Access to Document

10.1080/10106049.2023.2169374

Cite this

@article{269eebbdf43a4585a78e4445064606c7,

title = "Spatio-temporal air quality assessment in Tehran, Iran, during the COVID-19 lockdown periods",

abstract = "Based on ground-based and satellite-based data, spatio-temporal analyses of air quality in Tehran were carried out during the lock-down 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 PM2.5and PM10levels 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.",

keywords = "Lockdown, air pollutants, meteorological data, remote sensing",

author = "Mozhgan Bagherinia and Siamak Bodaghpour and Neamat Karimi and Fatemeh Ghasempour and Muhammad Bilal and Alaa Mhawish",

note = "Publisher Copyright: {\textcopyright} 2023 The Author(s).",

year = "2023",

doi = "10.1080/10106049.2023.2169374",

language = "English",

volume = "38",

journal = "Geocarto International",

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T1 - Spatio-temporal air quality assessment in Tehran, Iran, during the COVID-19 lockdown periods

AU - Bagherinia, Mozhgan

AU - Bodaghpour, Siamak

AU - Karimi, Neamat

AU - Ghasempour, Fatemeh

AU - Bilal, Muhammad

AU - Mhawish, Alaa

PY - 2023

Y1 - 2023

N2 - Based on ground-based and satellite-based data, spatio-temporal analyses of air quality in Tehran were carried out during the lock-down 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 PM2.5and PM10levels 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.

AB - Based on ground-based and satellite-based data, spatio-temporal analyses of air quality in Tehran were carried out during the lock-down 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 PM2.5and PM10levels 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.

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KW - air pollutants

KW - meteorological data

KW - remote sensing

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DO - 10.1080/10106049.2023.2169374

M3 - Article

AN - SCOPUS:85148092295

SN - 1010-6049

VL - 38

JO - Geocarto International

JF - Geocarto International

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M1 - 2169374

ER -

Spatio-temporal air quality assessment in Tehran, Iran, during the COVID-19 lockdown periods

Abstract

Bibliographical note

UN SDGs

Keywords

ASJC Scopus subject areas

Access to Document

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Cite this