Consider yourself in a wildfire, casually enjoying the fire. Breathe. That’ll be a fine particle, aka PM 2.5 #airpollution of ~1000. Translated to the Air Quality Index, it’ll be an #AQI of ~2000.
#Delhi recently had an AQI of over 1,700.
It’s spiralling.
5 is healthy, 100 dangerous, 300 hazardous.