In a response to the Covid-19 pandemic, researchers from The University of Hong Kong, Tsinghua University and Beijing University of Technology are calling on governments to consider enforcing real-time indoor air quality monitoring at least all public buildings.
Air quality that would have been deemed unsafe under Russian law two years ago is now, it turns out, perfectly safe. Changes to the regulations covering air quality were made in 2021 but it was only last month that a group of clean air activists found out.