What do we know about the causal connection between open air quality data and cleaner air?

The event featured research by Prof. Andrea La Nauze and colleagues that explores the effect of long-term, publicly-accessible PM2.5 data from single ground monitors on local air quality in cities across the world with little to no preexisting monitoring. This work will be of interest to a variety of groups working to reduce air pollution, especially in some of the most polluted but under-monitored regions on the planet.