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Air Pollution Regulatory Standards Public Health

Troutman Pepper

EPA Lowers Annual PM2.5 NAAQS, With Immediate Impacts for Air Permitting

Troutman Pepper on

Exercising one of its most important and far-reaching powers under the Clean Air Act, the Environmental Protection Agency (EPA) has lowered the primary annual National Ambient Air Quality Standard (NAAQS) for fine particulate...more

Mitchell, Williams, Selig, Gates & Woodyard,...

PM 2.5/Soot/Clean Air Scientific Advisory Committee: Draft Letter Recommending Reconsideration of National Ambient Air Quality...

The Clean Air Scientific Advisory Committee (“CASAC”) sent a February 4th letter to the United States Environmental Protection Agency (“EPA”) addressing the following subject: CASAC Review of the EPA’s Policy Assessment for...more

(ACOEL) | American College of Environmental...

When is risk reduction not a benefit?

EPA filed a status report on October 15 in the slow-moving mercury and air toxics (MATS) litigation, which is now Murray Energy Corp. v. EPA, No. 16-1127 (D.C. Cir., filed April 26, 2016). The case is a challenge to EPA...more

Foley Hoag LLP - Environmental Law

Will The PM NAAQS Be the Real End of Agency Deference?

According to Bloomberg Environment (subscription required), EPA’s Clean Air Science Advisory Committee cannot reach agreement whether to recommend that the NAAQS for PM2.5 be lowered. Even after two years, I guess I had not...more

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