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Evolving Air Quality Standards

Legal Planet

The goal of the Clean Air Act is to achieve national ambient air quality standards (NAAQS), with the primary requirement being protection of public health. As our understanding of the health effects of air pollution has improved, there has been a general trend toward tightening the standards. ppm, went up to 0.12

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EPA Will Reconsider the Ozone NAAQS — What Is An Adequate Margin of Safety, Anyway?

Law and Environment

On Friday, EPA announced that it was reconsidering its 2020 decision to leave the National Ambient Air Quality Standards for ozone unchanged. However, EPA stated that it: will reconsider the decision to retain the ozone NAAQS in a manner that adheres to rigorous standards of scientific integrity.

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EPA Announces $1.35 Million Penalty, Settlement With Genesee & Wyoming Railroad Over Clean Air Act Violations

PA Environment Daily

and numerous affiliated companies (collectively, GWRSI) for violation of Clean Air Act (CAA) locomotive regulations. NOx is a contributor to the formation of summer ozone, and particulate matter smaller than 2.5 microns has been shown to cause lung damage and cancer.

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The US Supreme Court is Operating Like a Rogue EPA

Union of Concerned Scientists

The plan cuts power plant and industrial ozone pollution that wafts from central parts of the nation into eastern states. According to the American Lung Association, nearly 120 million people in the nation—one of every three—lives with unhealthy levels of particle and ozone pollution. A 40-year-old Supreme Court ruling (Chevron v.

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Improving EPA’s Latest Ozone Transport Rule

Acoel

The downwind air quality benefits are minimal. The proposed rule would provide de minimus air quality benefits in downwind areas with extremely high costs – estimated by EPA at $22 billion discounted 2016 dollars for the 2023-2042 period. enjoyed ozone reductions of 3 to 5 ppb or more. ppb by 2025. EPA estimated that: .

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CLEAN AIR ACT COST BENEFIT ANALYSIS IS REQUIRED ONLY WHEN AUTHORIZED BY STATUTE, EXCEPT IF IT IS IMPOSED BY EXECUTIVE ORDER, BUT COST BENEFIT ANALYSIS IMPOSED BY EXECUTIVE ORDER CAN ONLY BE MODIFIED AS DIRECTED BY STATUTE

Acoel

Cost benefit analysis for Clean Air Act regulations has a tortuous history, which just got more twisted. American Trucking Association that EPA must not consider regulatory costs in establishing health based National Ambient Air Quality Standards for ozone and particulate matter. Biden reasoned that E.O

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The Problems with the SCOTUS ‘Good Neighbor’ Arguments

Legal Planet

EPA has been implementing the Good Neighbor Provision since the 1990s to successfully reduce significant contributions from power plants (and sometimes other types of big industrial sources) to ozone pollution (also called smog) in downwind States.