California Air Resources Board
PM10 Air Quality Data Summaries (1993-1997)
Azusa
South Coast AQMD
 
South Coast Air Basin Los Angeles County
Year Number of Complete Months % of Samples
Above 24-Hr Standard
Exceeds Annual
Standard?
PM10 Concentration in ug/m3
1st
Qtr
2nd
Qtr
3rd
Qtr
4th
Qtr
State
>50ug/m3
Federal
>150ug/m3
State
AGM
Federal
AAM
Max
24-Hr
AGM AAM EPDC 99th
Percentile
1997 3 3 3 3 41 0 Y N 116    40.8 46.1 127.8  116       
1996 3 3 3 3 42 0 Y N 100    39.4 45.4 135.1  100       
1995 3 3 3 3 39 2 Y N 157    40.8 47.7 135.4  157       
1994 3 3 3 3 40 0 Y N 127    37.9 43.7 114.7  127       
1993 3 2 3 3 32 0 Y N 101    36.5 43.0 130.4  101       

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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