MRGDASRPT Display

Data on this page extracted on March 29, 2024 at 02:41:27

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AQMIS2
     
Note: This AQMIS Ozone page reflects the 2008 National 8-Hour Ozone Standard of 0.075 ppm
San Diego Air Basin
Annual  Ozone Summary Data
2009  
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
SD   San Diego  Alpine-Victoria Drive  22  40  0.119   0.097   98 
SD   San Diego  Camp Pendleton  1  4  0.090   0.076   96 
SD   San Diego  Chula Vista  0  3  0.098   0.075   98 
SD   San Diego  Del Mar-Mira Costa College  1  3  0.097   0.084   99 
SD   San Diego  El Cajon-Redwood Avenue  2  4  0.098   0.082   99 
SD   San Diego  Escondido-E Valley Parkway  1  7  0.093   0.080   100 
SD   San Diego  Otay Mesa-Paseo International  0  0  0.098   0.068   91 
SD   San Diego  San Diego-1110 Beardsley Street  0  0  0.085   0.063   99 
SD   San Diego  San Diego-Overland Avenue  1  3  0.105   0.082   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
 

  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.  
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