source (and, holy cow, Atlanta, that's a LOT of pollen!)
This year, the Midwest and, according to this article, much of the Eastern half of the US, are experiencing extreme pollen counts. Even if the story hadn't been on the front page of weather.com, the raging sore throat, headache, aching ears, and endless sneezing would have been a pretty good indicator that pollen was in the air.
The good news? Rain is in the forecast for Friday.
Now, excuse me while I go find another box of tissues.