As millions of people sheltered in place to slow the spread of the novel coronavirus, the largest unintended air quality experiment unfolded.

The COVID-19 Air Quality Report analyzes levels of PM2.5 reported by ground-level monitoring stations in 10 major global cities. The data is based on a 3-week period for each city during lockdown conditions and compares this to the same time period in 2019, 2018, 2017, and 2016.

Findings reveal a drastic drop in PM2.5 pollution for most global locations under lockdown conditions, with some global cities experiencing their cleanest air quality on record.

Access the full report

Media pickup: CNN (Interviewed & quoted), Bloomberg, CNBC, Hindustan Times (Interviewed & quoted), Eco-business.

Contribution: Authored and designed the report. Contributed to PR efforts. Interviewed by CNN: https://www.cnn.com/2020/04/22/world/air-pollution-reduction-cities-coronavirus-intl-hnk/index.html