One hundred leading air pollution scientists have sent a letter to the EPA Clean Air Scientific Advisory Committee (CASAC) endorsing more stringent air quality standards for fine particles.
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“CASAC and EPA should preserve and strengthen the policy options that have been laid out in the draft Staff Paper,” testified Deborah Shprentz, consultant to the American Lung Association, at the Clean Air Scientific Advisory Committee meeting to review the first draft EPA Staff Paper on Particulate Matter on November 12, 2003.

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The American Lung Association has filed a formal objection to EPA’s dropping of several key tables from the fifth draft of the Integrative Synthesis of the PM Criteria Document.
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Dr. Bonnie New, Health Professionals for Clean Air, a coalition of 63 doctors, nurses, researchers and other Texas health professionals, presented a statement at he July 20-21, 2004 Clean Air Scientific Advisory Committee (CASAC) meeting to review the sixth draft Criteria Document on Particulate Matter.
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At the November 12, 2003 meeting of the Clean Air Scientific Advisory Committee (CASAC) to review the draft EPA Staff Paper on particulate matter, the Clean Air Task Force and the Blue Ridge Environmental Defense League called for CASAC to recommend stronger air quality standards without further delay.
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Appalachian Mountain Club (AMC) Staff Scientist Georgia Murray filed written comments on EPA’s draft Staff Paper that emphasize the need for strong secondary standards to protect against the adverse environmental impacts of fine particles, including visibility impairment and acid deposition.
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Comments filed by the Northeast States for Coordinated Air Use Management (NESCAUM), representing eight states, and by the California Air Resources Board and the Office of Environmental Health Hazard Assessment strongly support strengthened air quality standards for particulate matter.
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Dr. Linnea M. Avallone, Professor of Atmospheric and Oceanic Sciences at University of Colorado, presented a unique analysis of PM2.5 monitoring data at the November 12, 2003 meeting of the Clean Air Scientific Advisory Committee.
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Neil Mac Intrye M.D., Chief Professor of Critical Care Medicine and Director of the Pulmonary Rehabilitation program at Duke University presented testimony on behalf of the American Thoracic Society on the EPA draft Staff Paper on Particulate Matter at the November 12, 2003 meeting of the Clean Air Scientific Advisory Committee.
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“The Fourth External Review Draft of the Criteria Document (CD) is the best yet in terms of comprehensiveness and clarity, and we find it much improved since the previous draft,” testified Deborah Shprentz, consultant to the American Lung Association at the August 25, 2003 meeting of the Clean Air Scientific Advisory Committee Meeting to review the document.
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