Beyond Index

It is an unusually creamy sky this morning. Yesterday broke the streak of 43 consecutive days of clear blue skies and sunshine and today is even worse. A reading from the US Embassy's air pollution meter shows a return to a state of public hazard to the point that it is beyond the index of 500. At 4 am this morning, the PM2.5 (nano particles) reading was 595, the highest I've ever seen. In november, this reading was called "crazy bad", probably the most accurate description, but was soon modified to "beyond index". Between 400 and 500, the reading is "hazardous". Which means we are currently in a state "beyond hazardous". Below are photos from my window, roughly the same view eastwards. From today and December 12. Congratulations if you can identify any similarities.