Approval and Promulgation of Air Quality Implementation Plans; West Virginia; Maryland; Ohio; Determinations of Attainment for the 1997 Fine Particulate Matter Standard

概要

EPA is making determinations that three areas designated nonattainment for the 1997 fine particulate (PM 2.5 ) National Ambient Air Quality Standard (NAAQS) have attained the 1997 PM 2.5 NAAQS. These are the Martinsburg-Hagerstown, WV-MD nonattainment area; the Parkersburg-Marietta, WV-OH nonattainment area; and the Wheeling, WV-OH nonattainment area. These determinations are based upon complete, quality assured, quality controlled, and certified ambient air monitoring data that show that these areas have monitored attainment of the 1997 PM 2.5 NAAQS during the 2006-2008 monitoring period. Currently available monitoring data for 2009 are consistent with continued attainment of the standard. The intended effect of these actions is to finalize these attainment determinations for these areas. With these final determinations, the requirements for States to submit for these areas an attainment demonstration, associated reasonably available control measures, a reasonable further progress plan, contingency measures, and other planning State Implementation Plans (SIPs) related to attainment of the standard are suspended for so long as the areas continue to meet the 1997 PM 2.5 NAAQS. EPA's