In this study, the authors investigate the relationship between exposure to air pollutants and severe COVID-19 disease using data from a cohort of ~5 million people in Catalonia, Spain. They find that long-term exposure to pollutants is associated with a higher risk of COVID-19-related hospitalization, death, intensive care admission, and length of hospital stay.
- Otavio Ranzani
- Anna Alari
- Cathryn Tonne
