Roberto Johan Barragán Monrroy, Ana Madelaine Macias Mendoza, Betty Beatriz González Osorio

DOI: 10.59427/rcli/2024/v24.09-16

The objective of this research was to evaluate variations in tropospheric concentrations of nitrogen dioxide (NO2) and carbon monoxide (CO) in the cantons of Los Rios province, Ecuador, before (March 16 to December 31, 2019) and during (March 16 to December 31, 2020) the COVID-19 pandemic. Atmospheric data were obtained from the TROPOMI of the European Space Agency’s Copernicus Sentinel-5P satellite. It was observed that nitrogen dioxide (NO2) concentrations for 2019 were higher compared to 2020, evidencing a decrease of 8% during the pandemic. In contrast, carbon monoxide (CO) concentrations increased by 3% during the pandemic.

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