26- Multifractal analysis of air pollutant dynamics in the Caribbean during the COVID-19 lockdown. [Plocoste et al (2026)]

This study examines how the COVID-19 lockdown influenced air pollution in the Caribbean. The results show that nitrogen oxides, pollutants mainly produced by human activities such as road traffic, decreased significantly when mobility was reduced in 2020. In contrast, particulate matter (PM10) increased, largely due to the influence of natural sources in the region, particularly desert dust transported from the Sahara and marine aerosols. The analyses therefore show that some pollutants respond rapidly to changes in human activity, while others are more strongly controlled by natural processes, highlighting the complexity of air pollution in tropical environments.