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Feb 27, 20236 min read
Act Now or Forever Hold Your Breath: Tell the EPA to Adopt Stronger PM2.5 Standards
The U.S. Environmental Protection Agency (EPA) in January recommended strengthening the National Ambient Air Quality Standard (NAAQS) for...
Nov 10, 20215 min read
Allegheny County PM2.5 Levels Below Federal Standard but the Future is Still Hazy
The EPA in September announced that the agency intends to make a Clean Data Determination regarding levels of PM2.5 in the county.
Mar 11, 20213 min read
UPDATED: Mon Valley Experiences 2 More Air Quality Exceedances Wednesday – First of 2021 For PM2.5
The values in red are indicative of exceedances of the state H2S standard of 0.005 ppm. Editor’s Note: This story was updated at 1:46...
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