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June 9, 2022
8:15AM - 9:15AM

EPA’s Reconsideration of the PM NAAQS

Johnny Vermillion, PE, Spirit Environmental

Floral A1

The EPA is in the process of reconsidering their decision to retain all Particulate Matter (PM) National Ambient Air Quality Standards (NAAQS) at their current levels.  As reported in some technical articles, the EPA has not explicitly called for tighter PM standards, but their language seems to suggest that a tightening of the PM NAAQS is a very possible outcome.  The EPA has proposed an ambitious timeframe regarding a reconsideration of the PM NAAQS, with a rule proposal expected in the summer of 2022 and a finalized rule being ready in the spring of 2023.   A strengthening of the PM NAAQS will affect NSR authorizations along with state program regulatory guidelines and procedures.  There will most likely be new PM 2.5 nonattainment areas and a more detailed project evaluation from environmental regulatory programs (both Federal and State).   This presentation will discuss possible changes in the PM NAAQS, the ramifications of those changes, and how these changes may affect your facilities’ future permitting requirements.  Topics discussed in this presentation will include the following: Terms, Background (What Is This All About?), Current PM NAAQS Values, Discussed/Possible PM NAAQS Values, What Does This Potentially Mean?, Possible Timeframe, Considerations, Extra:  EPA – Ozone NAAQS Reconsideration.  

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