News & Analysis as of

Air Pollution Public Comment National Ambient Air Quality Standards

Williams Mullen

Exceptional Events Part of North Carolina Particulate Air Quality Attainment Designation

Williams Mullen on

Effective May 2024, EPA tightened the annual health-based National Ambient Air Quality  Standard (NAAQS) for fine particulate matter (PM2.5) from 12.0 µg/m3 to 9.0 µg/m3. This change was made after a review of the available...more

Troutman Pepper Locke

EPA Proposes Revised Cross-State Air Pollution Rule for the 2008 Ozone NAAQS

Troutman Pepper Locke on

On October 29, EPA published a proposed revision to its Cross State Air Pollution Rule (CSAPR) Update in response to the remand of the rule by the D.C. Circuit. The CSAPR Update was promulgated under the Clean Air Act’s “Good...more

Bricker Graydon LLP

U.S. EPA proposes to retain current particulate matter standards

Bricker Graydon LLP on

On April 14, 2020, U.S. EPA proposed to retain the current national ambient air quality standards (NAAQS) for particulate matter (PM) without revision. ...more

Snell & Wilmer

Breaking News of a Particulate Matter Regarding Air Quality

Snell & Wilmer on

The U.S. Environmental Protection Agency (“USEPA”) announced yesterday that it is proposing to retain the current National Ambient Air Quality Standards (“NAAQS”) for fine particulate matter (“PM2.5?) and course particulate...more

Shumaker, Loop & Kendrick, LLP

Environmental Update - March 2020 (Issue 12)

Welcome to the Shumaker, Loop & Kendrick, LLP Environmental Update; a monthly publication dedicated to providing content regarding Ohio administrative and regulatory law, as well as up to date information on the Ohio EPA's...more

Shumaker, Loop & Kendrick, LLP

Environmental Update - February 2020 (Issue 11)

Welcome to the Shumaker, Loop & Kendrick, LLP Environmental Update; a monthly publication dedicated to providing content regarding Ohio administrative and regulatory law, as well as up to date information on the Ohio EPA's...more

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