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논문 기본 정보

자료유형
학술저널
저자정보
Imane SEKMOUDI (Hassan II University of Casablanca) Laila IDRISSI (Hassan II University of Casablanca) Kenza KHOMSI (General Directorate of Meteorology) Soufiane FAIEQ (Univ.Grenoble Alpes) Mohamed EL JARMOUNI (Abdelmalek Essaadi University) Meryem TANARHTE (Hassan II University of Casablanca)
저널정보
대한환경공학회 Environmental Engineering Research Environmental Engineering Research 제27권 제5호
발행연도
2022.10
수록면
98 - 111 (14page)

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초록· 키워드

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Several measures have been taken to mitigate the effects of the COVID-19 pandemic. In this context, almost all non-essential activities in Morocco have been halted since March 20, 2020. From that date, Morocco announced the lockdown for one month and it was extended until June 10, 2020. The main objective of this paper is to study the effects of the lockdown measures on air quality, by analyzing dust PM<SUB>2.5</SUB>, NO₂, and O₃. The dust PM<SUB>2.5</SUB> analysis was carried out from 2016 to 2020. NO₂ and O₃ analysis was carried out in 2019 and 2020. This study, which is based on satellite data from TROPOMI Sentinel 5P and MERRA, has shown that Morocco has experienced an improvement in air quality during the lockdown. A significant reduction in surface dust PM<SUB>2.5</SUB> and tropospheric NO₂ was observed (-10%, -4%, respectively on average). The total column of ozone recorded a slight increase on average of around 1%. Moreover, we demonstrate that a significant part of particulate pollution and NO₂ emissions are incoming mainly from the northern and northern-eastern borders of Morocco.

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ABSTRACT
1. Introduction
2. COVID-19 Lockdown Effect on Air Pollution
3. Data and Methods
4. Results and Discussion
5. Conclusions
References

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UCI(KEPA) : I410-ECN-0101-2022-539-000057469