The Clean Air Scientific Advisory Committee (CASAC) has agreed that the the current air quality standard for ozone cannot be considered protective of public health and that EPA must lower the standard considerably to reflect studies show effects at and below the level of the current standard. (more…)

WASHINGTON - July 19 - With the U.S. Environmental Protection Agency (EPA) soon to make a critical decision about deadly particle soot pollution, medical experts and air pollution research specialists today called on EPA and a Senate committee to ignore what they called “bad science.”
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EPA’s second draft Staff Paper on the review of the ozone air quality standard recommends that the current standard be retained or slightly strengthened.
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EPA has published a provisional assessment of recent studies on the health effects of particulate matter exposure. The assessment finds that new studies of fine and coarse particles document adverse effects at lower concentrations than the studies reviewed in the 2004 Criteria Document.
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EPA published the final ozone Air Quality Criteria Document laying out the latest scientific evidence of the adverse health effects of ozone on March 21, 2006.
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The U.S. Environmental Protection Agency’s science advisors have officially asked EPA Administrator Steve Johnson to reconsider the agency’s proposed national air quality standards for particle soot.
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U.S. Senator Dianne Feinstein (D-Calif.) is urging the Environmental Protection Agency to enact tougher regulations on maximum annual exposure levels for particulate matter.
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On January 12, 2006, Congressman John Dingell wrote to EPA Administrator Steve Johnson questioning EPA’s recently announced political review of the air quality standard-setting process.
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U.S. Senator Jim Jeffords, Ranking Member of the Senate Environment and Public Works Committee, joined by eight of his Senate colleagues, today sent a letter to Environmental Protection Agency Administrator Stephen Johnson on Feburay 3, 2006, urging the Administrator to base his upcoming decision regarding the Particulate Matter (PM) air quality standards on the extensive scientific record available, rather than on political considerations.

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EPA’s science advisors, meeting in a teleconference on February 3, 2006, agreed to send a letter to EPA Administrator Steven Johnson urging that several aspects of the proposed air quality standards for particulate matter be be strengthened to conform with their prior recommendations.
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