Clue #1: Windy.com. does not track sulfur dioxide, and none of the Windy.com's maps for Wuhan show anything close to the image twitter.
(Am I the only Freeper who checks anc evaluates sources anymore?)
Currently, the real time World Air Quality Project shows Wuhan's SO2 level in EPA AQI equivalence as a 6, varying between 3 and 14. I don't know how to convert that to other measures. From the WACQ data, Wuhan's SO2 pollution looks pretty low compared to the other types.
“Ths looks like a faked and edited image.
Clue #1: Windy.com. does not track sulfur dioxide, and none of the Windy.com’s maps for Wuhan show anything close to the image twitter.”
Here’s an image from Windy’s community discussion thread:
Windy sources information:
NASA model GEOS-5
https://so2.gsfc.nasa.gov/pix/daily/ixxxza/loopall_ompspbl_trop.php?yr=20&mo=02&dy=08&bn=china