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Recent Blog Posts
The Battle for the PM2.5 Annual NAAQS is Back On
Back on February 7, 2024 I wrote a blog on how the “hour of doom” was upon us as the PM 2.5 Annual NAAQS had been lowered from 12.0 µg/m 3 to 9.0 µg/m 3 . I likened the lowered NAAQS to Osgiliath falling in J.R.R. Tolkien’s “The Return of the King,” despite valiant efforts from the Men of Gondor. Well, to continue my “Lord of the Rings” analogies, after Osgiliath fell Aragorn summoned the Dead Men of Dunharrow to fight for the men of Middle Earth. These “dead men” were
Dec 3, 20252 min read
Has life been found on another planet?
Ever since I was a kid I’ve been interested in science. While this may come as a shocker to those who know me as an air dispersion...
Apr 24, 20252 min read
Reduction in National Weather Service balloon launches could affect air modeling
As part of the ongoing cost-cutting with the Federal Government, the National Weather Service (NWS) announced yesterday (March 20, 2025)...
Mar 21, 20252 min read
EPA pauses Revisions to Guideline on Air Quality Models, but New Secondary SO2 NAAQS is in effect
On the road to a revised Guideline on Air Quality Models, it’s time for us to take a pause… Today the modeling community got caught up...
bjones148
Jan 28, 20251 min read
Surprise! Changes to the SO2 NAAQS
OK, I have to confess this slipped past me. On December 27 (I freely admit, not a time I was completely focused on modeling!) EPA...
bjones148
Jan 14, 20253 min read
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