MRGDASRPT Display

Data on this page extracted on March 28, 2024 at 11:43:42

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AQMIS2
     
Note: This AQMIS Ozone page reflects the 2008 National 8-Hour Ozone Standard of 0.075 ppm
Imperial County
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
SS   Imperial  Calexico-East  1  2  0.093   0.081   98 
SS   Imperial  Calexico-Ethel Street  4  9  0.104   0.083   96 
SS   Imperial  El Centro-9th Street  11  26  0.111   0.085   98 
SS   Imperial  Niland-English Road  5  14  0.091   0.083   100 
SS   Imperial  Westmorland-W 1st Street  7  22  0.150   0.087   100 
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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