01-12-2013 20:00; PM2.5; 886.0; 755; Beyond Index
— BeijingAir (@BeijingAir) January 12, 2013
We don’t really get how a reading that theoretically should max out at 500 can spit out a number like
886 755, but look at the above.
A BJC reader reports that in his high-rise office, he was able to look above and see blue sky, but could not see the building across the street — so if there’s any doubt that this was smog and not fog, put them to rest.
Air quality has not essentially changed. Still recommend everyone reduce outdoor activities and time spent (outdoors).
Meanwhile, throughout the course of the afternoon and evening, the US Embassy’s index registered an hourly reading below 600 just once from 3 pm yesterday to 5 am. Right now it sits at 345 — still “hazardous,” but at least back on the chart:
CORRECTION, 2:54 pm: As noted in the comments section, the AQI is the second number in @BeijingAir’s tweets, so it maxed out at a ridiculous 755, not the slightly more ridiculous 886.
POSTSCRIPT: Here’s a Youku video illustrating how bad it got: