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PM10 Air Quality Data Summaries (1988-1997)
San Diego 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 26 0 Y N 125       41.9   46.6   134.7   125       
1996 18 0 Y N 93       38.9   41.1   148.6   93       
1995 27 0 Y N 121       39.8   46.8   160.9   121       
1994 29 0 Y Y 129       45.2   50.7   79.5   129       
1993 32 1 Y N 159       40.0   45.9   83.5   159       
1992 10 0 Y N 67       33.5   35.9   94.4   67       
1991 23 0 Y N 81       38.0   40.6   95.4   81       
1990 13 0 Y N 115       33.4   37.6   97.3   115       
1989 36 0 Y N 90       41.3   43.8   102.6   90       
1988 26 0 Y N 81       36.8   39.9     81       

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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