MRGDASRPT Display

Data on this page extracted on March 28, 2024 at 07:26:48

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AQMIS2
     
Note: This AQMIS Ozone page reflects the 2008 National 8-Hour Ozone Standard of 0.075 ppm
Antelope Valley and W. Mojave Desert
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
MD   Los Angeles  Lancaster-43301 Division Street  44  69  0.122   0.102   100 
MD   San Bernardino  Barstow  5  17  0.095   0.086   100 
MD   San Bernardino  Hesperia-Olive Street  40  61  0.123   0.101   100 
MD   San Bernardino  Joshua Tree NP - Black Rock  59  86  0.121   0.104   98 
MD   San Bernardino  Phelan-Beekley Road and Phelan Road  35  53  0.121   0.101   100 
MD   San Bernardino  Victorville-14306 Park Avenue  23  50  0.111   0.097   99 
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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