February 24, 2009.  A federal appeals court today ruled that Bush-era clean air standards were deficient, sending them back to the U.S. Environmental Protection Agency for corrective action. (more…)

EPA has published its first draft Integrated Science Assessment (ISA) for public review and comment.  The ISA is available online.   (more…)

One of the most pressing issues facing EPA in the review of the air quality standards for particulate matter (PM) is the need to strengthen the annual average standard for fine particles. (more…)

On October 16, 2007, EPA issued a draft Integrated Review Plan for the next periodic review of the National Ambient Air Quality Standards for Particulate Matter.  The draft plan is subject to review by the Clean Air Scientific Advisory Committee and by the public.  (more…)

In anticipation of the upcoming five-year review of the National Ambient Air Quality Standards (NAAQS) for particulate matter (PM), the U.S. EPA has appointed several new members to the Clean Air Scientific Advisory Committee (CASAC) and a number of additional consulting members to serve on the PM review panel.  (more…)

Particulate air pollution is a national public health problem and EPA’s proposed health standards are insufficient according to a letter from American Medical Association CEO Dr. Michael D. Maves to the U.S. EPA, dated April 17, 2006.
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More than 160 national, state, and local environmental, public interest, environmental justice, conservation, and religious groups sent a letter to EPA Administrator Steve Johnson on April 17, 2006 in support of strengthened air quality standards for particulate matter.
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Joint comments filed by the American Lung Association and a coalition of environmental groups lay out the legal and technical arguments why EPA’s proposed revisions to the particulate matter (PM) air quality standards are not sufficient to protect public health and the environment as required by the Clean Air Act.  (more…)

Advocates in support of stricter air quality standards for particulate matter outnumbered industry speakers by 8:1 at three public hearings convened by EPA on March 8, 2006.
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The Children’s Health Protection Advisory Committee has urged EPA to set the final National Ambient Air Quality Standards for fine and coarse particulate matter at lower levels than proposed.
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