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PM10 Air Quality Data Summaries (1988-1997)
Stanislaus 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 14 0 Y N 119       33.3   37.1   138.9   119       
1996 12 0 N N 133       27.5   32.0   151.5   133       
1995 26 0 Y N 120       34.9   41.6   156.6   120       
1994 26 2 Y N 160       36.1   41.1   163.7   160       
1993 34 0 Y Y 154       43.8   52.4   179.6   154       
1992 29 0 Y N 150       38.6   43.6   190.8   150       
1991 39 1 Y Y 157       42.1   53.7   184.5   157       
1990 51 3 Y Y 180       40.7   54.1   152.7   180       
1989 53 0 Y Y 148       45.4   53.3   182.5   148       
1988 49 2 Y N 175       40.1   48.4     175       

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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