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EPA Proposes to Redesignate Allegheny County to Attainment of the 2012 NAAQS for PM2.5
The EPA on Nov. 20 published a proposed rule that would redesignate Allegheny County from “nonattainment” of the 2012 National Ambient Air Quality Standard for fine particulate matter (the “2012 NAAQS for PM2.5”) to “attainment.” EPA’s proposed rule is based on monitored air quality data that shows that all areas of the county attained the 2012 NAAQS for PM2.5 during the years 2018, 2019, and 2020. The proposed rule also discusses more recent monitored air quality data,
Nov 24, 20252 min read
EPA: Liberty-Clairton Area Has Met Federal Air Quality Standards, Maintenance Plan Approved to Ensure Progress Continues
Here’s something completely different…Some positive news from the U.S. Environmental Protection Agency regarding air quality in our...
Jul 28, 20253 min read
It’s Official: EPA Determines Allegheny County Has Met National Ambient Air Quality Standards for Sulfur Dioxide
Big news, folks: The U.S. Environmental Protection Agency (EPA) on Monday published notice of its approval of a request to designate...
Apr 29, 20251 min read
EPA Proposes to Grant ACHD Request for Redesignation of Allegheny Co. to Attainment for National Standards for Fine Particulate Matter…in Part
Just about a year ago we blogged about the Allegheny County Health Department’s (ACHD) withdrawal of a request to the U.S....
Apr 16, 20252 min read
Allegheny Co. Health Dept. Announces Withdrawal of Request for EPA Attainment Determination of PM2.5 Standard
A little more than a year-and-a-half ago, we blogged about the Clean Data Determination that the U.S Environmental Protection Agency...
Apr 22, 20242 min read
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