MRGDASRPT Display

Data on this page extracted on March 29, 2024 at 03:48:43

AQMIS web pages were recently revised. Please report any problems to aqmis@arb.ca.gov
AQMIS2
     
Note: This AQMIS Ozone page reflects the 2008 National 8-Hour Ozone Standard of 0.075 ppm
San Francisco Bay Area Air Basin
Annual  Ozone Summary Data
2013  
Parts Per Million ( ppm )
Basin County Monitoring Site Exceedance Days Maximum Concentration Ozone
National 8-hr Std Parts Per Million ( ppm ) Season
0.075 ppm 0.070 ppm 1-hr 8-hr Covered
SFB  Alameda  Hayward-La Mesa  0  1  0.085   0.075   100 
SFB  Alameda  Livermore-793 Rincon Avenue  1  2  0.096   0.077   98 
SFB  Alameda  Oakland-9925 International Blvd  0  0  0.076   0.054   99 
SFB  Alameda  Oakland-West  0  0  0.071   0.059   97 
SFB  Contra Costa  Bethel Island Road  0  1  0.082   0.075   57 
SFB  Contra Costa  Concord-2956-A Treat Blvd  0  0  0.074   0.062   99 
SFB  Contra Costa  San Pablo-Rumrill Blvd  0  0  0.074   0.065   98 
SFB  Contra Costa  San Ramon-9885 Alcosta Bl   0  0  0.084   0.067   100 
SFB  Marin  San Rafael  0  0  0.081   0.069   99 
SFB  Napa  Napa-Jefferson Avenue  1  2  0.089   0.076   96 
SFB  San Francisco  San Francisco-Arkansas Street  0  0  0.069   0.059   100 
SFB  San Mateo  Redwood City  0  1  0.083   0.075   99 
SFB  Santa Clara  Cupertino-22601 Voss Ave  1  1  0.091   0.077   95 
SFB  Santa Clara  Gilroy-9th Street  0  0  0.085   0.068   99 
SFB  Santa Clara  Los Gatos  0  1  0.087   0.075   90 
SFB  Santa Clara  San Jose-Jackson Street  1  1  0.093   0.079   97 
SFB  Santa Clara  San Martin-Murphy Avenue  1  1  0.094   0.076   100 
SFB  Solano  Fairfield-Chadbourne Road  0  1  0.087   0.075   99 
SFB  Solano  Vallejo-304 Tuolumne Street  0  0  0.082   0.068   99 
SFB  Sonoma  Santa Rosa-5th Street  0  0  0.074   0.064   98 
Standards:
State 1-hr: 0.090 ppm
State 8-hr: 0.070 ppm
National 1-hr: 0.12 ppm
2008 National 8-hr: 0.075 ppm
2015 National 8-hr: 0.070 ppm

Other Standards (pdf)
Get Additional Information on Sites
 

  Dagger † Indicates closed site.  
  Nat'l stds truncate 4 digit 8-Hr avgs to 3 decimals; State stds round to 3 decimals.  
  Cell color is red if national 8-hour standard level is exceeded.  
  Click on site name to see multiyear data for the site.  
  Season Covered (%) is based only on official data.  
  The 8-hour maximum value is based on the 2015 (0.070) ppm Nat'l std method.  
Change Selection
 


Air Quality and Meteorological Information (AQMIS2) Home Page
Latest Ozone Air Quality | Latest Week's Ozone | Recent Years' Ozone Air Quality
Air Quality Data | Meteorological Data | Google Map Pages | AQ Map  

preload