North Carolina Jjddlesex Maths Gloucests Martinsville City Newport News Cily^ Portsmouth Ci- Franklin CiP Emporia Cit\^^ South Boston City Norton Qity Pittsylvanii Halifax 'Norfolk City Southampto\ Washington Mecklenburg Carroll Suffolk Cij Patrick Greensville Beach Sullivan Alleghany Caswell H awkins Currituck Northampton/ Hertford Stokes Campbell asquotank Washingtor Halifax Wilkes Watauga Forsyth Guilford Jeffersc Caldwell Mitchell! Alexandt Cocke Iredell Martin" Davids c Washington. Chatham Blount Catawbi Buncombe Mcdowell H aywooc Beaufort Rutherford Wayne Cleveli Graham Hendt Montgomery Gaston /Mecklenbur Transylvanii Craven \Jacksc Cheroket Cumberland Cherokee Sampsc Hoke/ Richmond Spartanburg Pickens Greenville Carteret Towns Scotland, Georgia Oconet Chester Lancaster Chesterfield Andersc Laurens Darlington Elbert 8-hour Ozone Maintenance Areas in Blue Border Virginia Rocky Mount, NC Previously Subpart 1 (Basic) Tennessee Poquoson City ~ Hampton City Raleigh-Durham-Chapel Hill, NC Previously Subpart 1 (Basic) South Carolina Previously Subpart 2 Moderate Previously Subpart 2 Marginal 0 50 100 Previously Subpart 1 (Basic) ITlileS ------- |