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Ozone Data Summary (1992-1995)
 

Los Alamitos-Orangewood Avenue

South Coast Air Quality Management District
 
South Coast Air Basin Orange County
Year % of Days Moni-
tored
Number of Days Standard Exceeded 1-hr Ozone
Concentrations
ppm
8-hr Ozone Concentrations
ppm
State 1-hour Federal 1-hour Federal 8-hour** 1st
High
2nd
High
3rd
High
4th
High
EPDC* 1st
High
2nd
High
3rd
High
1995 0%               0.139      
1994 0%               0.151      
1993 100% 22 4 6 0.150 0.140 0.140 0.140 0.155 0.100 0.098 0.095
1992 100% 30 9 11 0.180 0.160 0.150 0.150 0.162 0.114 0.111 0.099
* The Expected Peak Day Concentration (EPDC) is 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.
** Proposed Federal Standard

Please send your questions or comments to:
aqdweb@arb.ca.gov

This page last revised on April 5, 1997.

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