Bogotá’s strictest COVID restrictions delivered the clearest air-quality gains
Coronavirus
By Dr. Priyom Bose, Ph.D. Reviewed by Lauren Hardaker Jun 21 2026 In Suba, Bogotá, tougher mobility restrictions delivered the clearest gains in reducing particle pollution, but the mixed ozone response shows that cleaner city air requires more than simply reducing traffic. Study: Effect size of COVID-19 mobility restrictions intensity on air pollution: a natural experiment . Image Credit: leolintang / Shutterstock A recent Scientific Reports study quantified the impact of varying levels of
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