California Air Resources Board California Map with County Boundaries
PM10 Air Quality Data Summaries (1988-1997)
San Bernardino County Portion
of the South Coast Air Basin
Year % of Samples
Above 24-Hr Standard
Exceeds Annual
Standard?
PM10 Concentration in ug/m3
State
>50ug/m3
Federal
>150ug/m3
State
AGM
Federal
AAM
Max
24-Hr
Max
AGM
Max
AAM
Max
EPDC
Max 99th
Percentile
1997 52 1 Y Y 208       47.6   53.6   181.4   208       
1996 64 0 Y Y 136       48.2   54.9   174.5   136       
1995 59 6 Y Y 178       50.6   60.8   182.7   178       
1994 63 0 Y Y 147       52.7   59.9   242.1   147       
1993 70 0 Y Y 143       50.1   58.2   241.5   143       
1992 75 3 Y Y 649       62.4   79.0   274.0   649       
1991 76 3 Y Y 163       60.3   68.5   256.2   163       
1990 72 9 Y Y 475       62.7   77.3   295.5   475       
1989 86 6 Y Y 271       69.7   79.7   242.6   271       
1988 83 8 Y Y 289       66.9   81.3     289       

Go to Data Explanation Explanation of the terminology in the header above, as well as the sampling program and analytical methods used to collect the data, the PM10 air quality standards, and how to request air quality data.

Please send questions or comments to:

aqdweb@arb.ca.gov

This page last revised on March 8, 1999

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