Published: March 16th, 2021,
Last updated: March 7th, 2022
For many people living in China, it’s the very first thing they do in the morning: not a freshly brewed cup of coffee or green tea, but a glance at the air values. They show how many micrograms of fine dust particles are currently in one cubic meter of air – and they determine the day: Is my car banned from driving? Can the child really go out to the playground? Or should I better switch up the air filter immediately? At values of 200-250, our kindergarten in Beijing restricted activities on the playground.