Beijing continues to force-feed us with their blue sky propaganda. For sure some foreigners will fall for it, especially after the really blue looking skies we had a couple of days ago.

Now, the pollution is coming back with a revenge and BEPB has to admit we are over API 100.
That is all misleading. When earlier this week we had gorgeous blue sky the situation was in fact not so good. AQI as per our Twitter friends showed values of close to or higher than 200 – unhealthy. The PM2.5 are dangerous because if there are no other major particles the sky looks great. We have the same problem in Belgium where often the sky looks great but not the PM2.5.
When pollution hit later in the week we reached AQI of 450 – HAZARDOUS, avoid going outside and any physical activity.
BEPB reported figures like API 120. As a rule you multiply the API by 3 to have some representative AQI.
I am looking to leave Beijing again this Wednesday, hopefully to breathe better air.