Since visiting Beijing, I have taken a bit of interest in air quality. I’ve found a handy little site that gives air readings from all over the world.
The data is real time and updates automatically.
Here are a few places.
The pollution reading for Beijing:
The reading at the same time in the middle of London:
And, of course, Sydney:
And, of course, the Dordogne (Perpignon-sud, to be exact):
And, apologies to Nicktor but there’s no readings taken in the whole African continent so Marrakech is not available.