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EPA Air Official Predicts Push For Strict PM NAAQS But Doubts Feasibility

August 03, 2018
AUSTIN, TX -- A top EPA air official is predicting some stakeholders will push for significantly ramping down the fine particulate matter (PM2.5) ambient air standard from the current limit of 12 micrograms per cubic meter (ug/m3) to as low as 5 ug/m3 as part of EPA's ongoing review of the limit, but is suggesting such a standard might be technically impossible. Clint Woods, deputy assistant administrator in the Office of Air & Radiation, told the Texas Environmental Superconference here...

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