MRGDASRPT Display

Data on this page extracted on April 19, 2024 at 05:33:00

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AQMIS2
     
Note: This AQMIS Ozone page reflects the 2008 National 8-Hour Ozone Standard of 0.075 ppm
South Coast 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
SC   Los Angeles  Azusa  17  29  0.150   0.107   99 
SC   Los Angeles  Burbank-W Palm Avenue  14  27  0.145   0.096   97 
SC   Los Angeles  Compton-700 North Bullis Road  1  1  0.104   0.086   98 
SC   Los Angeles  Glendora-Laurel  41  62  0.150   0.118   99 
SC   Los Angeles  Los Angeles-North Main Street  2  5  0.139   0.100   97 
SC   Los Angeles  Los Angeles-Westchester Parkway  0  0  0.077   0.070   96 
SC   Los Angeles  North Long Beach  0  0  0.089   0.067   95 
SC   Los Angeles  Pasadena-S Wilson Avenue  12  19  0.176   0.114   99 
SC   Los Angeles  Pico Rivera-4144 San Gabriel  3  5  0.131   0.101   97 
SC   Los Angeles  Pomona  21  36  0.138   0.099   100 
SC   Los Angeles  Reseda  19  28  0.135   0.100   99 
SC   Los Angeles  Santa Clarita  64  75  0.140   0.122   99 
SC   Los Angeles  West Los Angeles-VA Hospital  3  5  0.131   0.094   100 
SC   Orange  Anaheim-Pampas Lane  1  2  0.093   0.077   100 
SC   Orange  Costa Mesa-Mesa Verde Drive  0  3  0.087   0.072   98 
SC   Orange  La Habra  3  8  0.115   0.082   99 
SC   Orange  Mission Viejo-26081 Via Pera  10  12  0.121   0.095   97 
SC   Riverside  Banning Airport  70  89  0.133   0.104   98 
SC   Riverside  Lake Elsinore-W Flint Street  35  63  0.128   0.105   100 
SC   Riverside  Mira Loma-10551 Bellegrave  29  40  0.132   0.102   60 
SC   Riverside  Mira Loma Van Buren  18  28  0.118   0.090   70 
SC   Riverside  Perris  67  88  0.125   0.108   100 
SC   Riverside  Riverside-Rubidoux  36  54  0.116   0.100   87 
SC   San Bernardino  Crestline  92  104  0.149   0.117   99 
SC   San Bernardino  Fontana-Arrow Highway  48  63  0.142   0.128   98 
SC   San Bernardino  Redlands-Dearborn  73  90  0.145   0.122   100 
SC   San Bernardino  San Bernardino-4th Street  61  76  0.150   0.126   99 
SC   San Bernardino  San Gorgonio Wilderness  80  94  0.148   0.120   100 
SC   San Bernardino  Upland  48  69  0.146   0.121   97 
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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