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Designated 8-Hr Ozone (1997) Compared to PM-2.5 (2006) and PM-2.5 (1997) Nonattainment Areas

As of July 02, 2014

View Notes     |     Design Value Notes

Mouse over the No. Ctys to see the area name; click on them to see the associated counties. [Split] in No. Ctys column explained here.

  1997 8-Hr Ozone
Nonattainment Areas
2006 PM-2.5
Nonattainment Areas
1997 PM-2.5
Nonattainment Areas
State(s) General Area Name
(see footnote)
2010
Pop.
No.
Ctys
Category/
Class
Design
Value
(2001-2003)
2010
Pop.
No.
Ctys
Category/
Class
24-hr
Design
Value
(2006-2008)
2010
Pop.
No.
Ctys
Category/
Class
Annual
Design
Value
(2001-2003)
AZ Phoenix-Mesa 3,848,627 2 Mar 0.087                
CA Amador and Calaveras Cos (Central Mtn), 83,669 2 Mod 0.091                
CA Chico 220,000 1 Mar 0.089 217,626 1 Mod 69        
CA Imperial County 174,528 1 Mod 0.087 154,061 1 Mod 36        
CA Kern Co (Eastern Kern) 95,314 1 Mod 0.098                
CA Los Angeles-San Bernardino Cos(W Mojave) 868,350 2 Sev5 0.106                
CA Los Angeles-South Coast Air Basin 15,717,914 4 Ext 0.131 15,716,242 4 Mod 49 15,716,335 4 Mod 27.8
   913 1 Sev7 see Design
Value Notes
               
CA Mariposa and Tuolumne Cos (Southern Mtn) 73,616 2 Mod 0.091                
CA Nevada Co. (Western Part) 82,393 1 Mod 0.098                
CA Riverside Co, (Coachella Valley) 425,425 1 Sev5 0.108                
CA Sacramento Metro 2,243,911 6 Sev5 0.107 2,206,060 5 Mod 56        
CA San Francisco-Bay Area 6,970,997 9 Mar 0.086 6,971,067 9 Mod 36        
CA San Joaquin Valley 3,842,586 8 Ext 0.115 3,842,165 8 Mod 70 3,842,165 8 Mod 21.8
CA Sutter Co (Sutter Buttes) 33 1 Mar 0.088                
           164,955 2 Mod 47        
CA Ventura County 823,360 1 Ser 0.095                
CO Denver-Boulder-Greeley-Ft Collins-Love. 3,330,139 9 Mar 0.087                
CT Greater Connecticut 1,629,115 5 Mod 0.095                
DC-MD-VA Washington 5,136,216 15 Mod 0.099         5,047,479 14 Mod 15.8
MA Boston-Lawrence-Worcester (E. Mass) 5,723,468 10 Mod 0.095                
MA Springfield (Western Mass) 824,161 4 Mod 0.094                
MD Baltimore 2,662,691 6 Ser 0.103         2,662,691 6 Mod 16.7
MO-IL St. Louis 2,594,238 9
[Split]
Mod 0.092         2,572,706 9 Mod 17.5
NY Albany-Schenectady-Troy 970,156 7 Mar 0.087                
NY Buffalo-Niagara Falls 1,135,509 2 Mod 0.099                
NY Essex County; Whiteface Mountain 465 1 Mar 0.091                
NY Jamestown 134,905 1 Mod 0.094                
NY Jefferson County 116,229 1 Mod 0.097                
NY Poughkeepsie 770,011 3 Mod 0.094                
NY Rochester 1,114,402 6 Mar 0.088                
NY-NJ-CT New York-N. New Jersey-Long Island 20,217,137 24 Mod 0.102                
PA Pittsburgh-Beaver Valley 2,356,285 7 Mod 0.094 2,142,981 8 Mod 36 2,142,981 8 Mod 21.2
           20,789 1 Mod 53 20,789 1 Mod 21.2
PA-NJ-MD-DE Philadelphia-Wilmin-Atlantic City 7,796,590 18 Mod 0.106 5,798,152 9
[Split]
Mod 36 5,798,152 9
[Split]
Mod 16.4
RI Providence (all of RI) 1,052,567 5 Mod 0.095                
TX Dallas-Fort Worth 6,221,286 9 Ser 0.100                
TX Houston-Galveston-Brazoria 5,891,999 8 Sev5 0.102                
WI Sheboygan 115,507 1 Mod 0.100                

Area Name:

The "State(s) Area Name" column contains a common or general name for the nonattainment areas on the row, but may not reflect the exact name of any area on the row. This column cannot be exact since the nonattainment area for one pollutant may not contain the same counties, cities, or states as the nonattainment area for another pollutant on the same row. to see the area name or click on them to see the associated counties. The abbreviations listed in the "State(s)" column reflect all states identified in row. However, some states on a row may be nonattainment for some pollutants and not for others in the general area.

Split Area:

'Split' in the No. Ctys column indicates that the multi-state area has states that have been redesignated but the area does not become a maintenance area until all states in the area are redesignated. The whole area population is displayed in this report. Clicking on a "Split" No. Ctys will display information for the state(s) that have not been redesignated.


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