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Article

Relationship between Meteorological and Air Quality Parameters and COVID-19 in Casablanca Region, Morocco

1
International School of Public Health, Mohammed VI University of Health Sciences (UM6SS), Casablanca 82403, Morocco
2
General Directorate of Meteorology, Casablanca 20000, Morocco
3
National School of Public Health, Rabat 10000, Morocco
4
Laboratory of Health Sciences and Technology, Higher Institute of Health Sciences, Hassan 1st University of Settat, Settat 26000, Morocco
5
Herbert Wertheim School of Public Health and Human Longevity Science, University of California, San Diego, CA 92093, USA
6
Department of Epidemiology, Faculty of Medicine and Pharmacy of Fez, Sidi Mohamed Ben Abdellah University, Fez 30000, Morocco
*
Author to whom correspondence should be addressed.
Academic Editors: Margherita Ferrante, Chiara Copat and Antonio Cristaldi
Int. J. Environ. Res. Public Health 2022, 19(9), 4989; https://doi.org/10.3390/ijerph19094989
Received: 20 February 2022 / Revised: 13 April 2022 / Accepted: 18 April 2022 / Published: 20 April 2022
(This article belongs to the Special Issue The Role of Air Pollution during the COVID-19 Pandemic)
The aim of this study was to investigate the relationship between meteorological parameters, air quality and daily COVID-19 transmission in Morocco. We collected daily data of confirmed COVID-19 cases in the Casablanca region, as well as meteorological parameters (average temperature, wind, relative humidity, precipitation, duration of insolation) and air quality parameters (CO, NO2, 03, SO2, PM10) during the period of 2 March 2020, to 31 December 2020. The General Additive Model (GAM) was used to assess the impact of these parameters on daily cases of COVID-19. A total of 172,746 confirmed cases were reported in the study period. Positive associations were observed between COVID-19 and wind above 20 m/s and humidity above 80%. However, temperatures above 25° were negatively associated with daily cases of COVID-19. PM10 and O3 had a positive effect on the increase in the number of daily confirmed COVID-19 cases, while precipitation had a borderline effect below 25 mm and a negative effect above this value. The findings in this study suggest that significant associations exist between meteorological factors, air quality pollution (PM10) and the transmission of COVID-19. Our findings may help public health authorities better control the spread of COVID-19. View Full-Text
Keywords: COVID-19; air pollutants; air quality; meteorological parameters; time-series analysis; generalized additive model; Morocco COVID-19; air pollutants; air quality; meteorological parameters; time-series analysis; generalized additive model; Morocco
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MDPI and ACS Style

Khalis, M.; Toure, A.B.; El Badisy, I.; Khomsi, K.; Najmi, H.; Bouaddi, O.; Marfak, A.; Al-Delaimy, W.K.; Berraho, M.; Nejjari, C. Relationship between Meteorological and Air Quality Parameters and COVID-19 in Casablanca Region, Morocco. Int. J. Environ. Res. Public Health 2022, 19, 4989. https://doi.org/10.3390/ijerph19094989

AMA Style

Khalis M, Toure AB, El Badisy I, Khomsi K, Najmi H, Bouaddi O, Marfak A, Al-Delaimy WK, Berraho M, Nejjari C. Relationship between Meteorological and Air Quality Parameters and COVID-19 in Casablanca Region, Morocco. International Journal of Environmental Research and Public Health. 2022; 19(9):4989. https://doi.org/10.3390/ijerph19094989

Chicago/Turabian Style

Khalis, Mohamed, Aly Badara Toure, Imad El Badisy, Kenza Khomsi, Houda Najmi, Oumnia Bouaddi, Abdelghafour Marfak, Wael K. Al-Delaimy, Mohamed Berraho, and Chakib Nejjari. 2022. "Relationship between Meteorological and Air Quality Parameters and COVID-19 in Casablanca Region, Morocco" International Journal of Environmental Research and Public Health 19, no. 9: 4989. https://doi.org/10.3390/ijerph19094989

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