California Air Resources Board California Map with District Boundaries
Ozone Data Summaries (1980-1998)
Kern County APCD
Year Number of Days Standard Exceeded Ozone Concentrations in ppm
1 hour 8 hour
State
1hr
Federal
1hr
Federal
8hr
Max
1hr
3 Year
4th High*
EPDC*
Max
8hr
3 Year Avg
4th High*
1998 43 2 40 0.13 0.13 0.125 0.117 0.099
1997 22 0 19 0.12 0.12 0.121 0.096 0.097
1996 46 2 42 0.13 0.12 0.125 0.109 0.100
1995 44 2 41 0.13 0.12   0.109 0.101
1994 43 0 46 0.12 0.12   0.107 0.102
1993 15 2 13 0.13 0.12   0.112 0.102
* The 3 year 4th high, 3 year average 4th high, and Expected Peak Day Concentration (EPDC) are calculated based on data for 3 successive years, listed by the last year of the three year period.  The EPDC represents the ozone concentration expected to occur once per year.
   

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This page last revised on March 26, 1999

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