Originally, EPA Identified 114 Areas that did not meet the 1997 Ground-level Ozone Standards Based generally on 2001 - 2003 monitoring data ------- Today, 90 percent of those areas meet the 1997 Standards Areas not meeting 84 parts per billion (12 areas) 102 areas meet the 1997 standards. Based on 2011 - 2013 monitoring data ------- Counties Where Measured Ozone is Above Proposed Range of Standards (65 - 70 parts per billion) — rY- i7" ^ ¦ ** * K f. > ¦ * * V 358 counties would violate 70 parts per billion (ppb) 200 additional counties would violate 65 ppb for a total of 558 Based on 2011 - 2013 monitoring data ------- EPA Projects Most Counties Would Meet the Proposed Range of Standards in 2025 v (\ 9 counties outside of California would violate 70 parts per billion (ppb) 59 additional counties outside of California would violate 65 ppb for a total of 68 Because several areas iri California are not required to meet the existing standard by 2025 and may not be required to meet a revised standard until sometime between 2032 and 2037, EPA analyzed California separately. Details are available in the Regulatory Impact Analysis for this proposal. ------- |