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PM10 Air Quality Data Summaries (1988-1997)
San Bernardino County
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 47 1 Y Y 208       47.6   53.6   181.4   208       
1996 52 0 Y Y 138       48.2   54.9   174.5   138       
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 65 0 Y Y 143       50.1   58.2   241.5   143       
1992 62 3 Y Y 649       62.4   79.0   274.0   649       
1991 73 6 Y Y 389       60.3   68.5   256.2   389       
1990 70 11 Y Y 475       62.7   77.3   295.5   475       
1989 84 7 Y Y 271       69.7   79.7   242.6   271       
1988 73 7 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 1, 1999

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