EPA Proposes New Tougher Ground-Level Ozone Standards
Green Car Congress
JANUARY 7, 2010
EPA is also proposing to set a separate “secondary” standard to protect the environment within the range of 7-15 ppm-hours. In September 2009 Administrator Jackson announced that EPA would reconsider the existing ozone standards, set at 0.075 ppm in March 2008. 2010 in Arlington, Va. and in Houston; and 4 Feb.
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