National Ambient Air Quality Standards
A Design Flaw in the Clean Air Act
Why have technology-based standards if you have air quality standards?
The Clean Air Act has two kinds of standards. It sounds like having two kinds of standards should improve air quality more than a single standard. But in reality, one type of standard can result in canceling out the benefits of the other type. If you understand the statute, this is actually pretty obvious once …
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CONTINUE READINGAnother California Regulatory Agency in Crisis: Southern California’s Air Quality Management District Fires Longtime Executive Officer
Barry Wallerstein’s Ouster from SCAQMD Signals Tilt Away from Protection of Public Health
In a move that shocked the environmental advocacy community and low-income communities of color that suffer most from the impacts of poor air quality in Los Angeles, the governing board of the South Coast Air Quality Management District fired its longtime executive officer Barry Wallerstein today, voting 7-6 in closed session to remove him from …
CONTINUE READINGThe Long, Slow Path to Improved Air Quality Standards
The regulatory process can be slow and tortuous. Consider the case of air quality standards. Since 1997, EPA has had separate air quality standards for fine particulates, technically called PM2.5. These tiny particles can penetrate deep into the lungs, making them a special public health concern. EPA has revisited the standard twice, in 2006 and …
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CONTINUE READINGAnother Posthumous Loss for the Bush EPA
Greenwire Reports: The U.S. Circuit Court of Appeals for the District of Columbia ruled that U.S. EPA’s 2006 standards for fine particulate matter were, “in several respects, contrary to law and unsupported by adequately reasoned decisionmaking.” At issue was the rule that kept the primary standard for annual fine particulate matter at 15 micrograms per …
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CONTINUE READINGDelay on marine engines upheld
In the latest round in a long-running battle, the D.C. Circuit has upheld EPA’s foot-dragging on regulation of emissions from large marine diesel engines against a challenge brought by the South Coast Air Quality Management District, Santa Barbara Air Pollution Control District, and Friends of the Earth. Large ships are major sources of air pollution …
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