California Air Resources Board California Map with Basin Highlighted
Basin by Basin Comparison of 1995 PM10 Air Quality Data
Basin Name % 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
Great Basin Valleys 25 7 N Y 2668    28.1  61.3  396.0  2668       
Lake County 0 0 N N 30    9.6  10.7  26.5  30       
Lake Tahoe 5 0 N N 71    20.2  22.5  98.3  71       
Mountain Counties 9 0 N N 118    26.7  28.0  126.6  118       
Mojave Desert 11 1 N N 235    22.6  25.5  81.3  235       
North Coast 3 0 N N 68    23.4  26.0  65.5  68       
North Central Coast 18 0 N N 152    29.5  36.4  122.4  152       
Northeast Plateau 13 0 N N 78    25.4  30.3  58.9  78       
South Coast 59 7 Y Y 219    51.8  68.8  240.0  219       
South Central Coast 20 0 Y N 129    36.8  39.9  101.7  129       
San Diego 27 0 Y N 121    39.8  46.8  160.9  121       
San Francisco B. A. 8 0 N N 74.2  25.6  28.4  103.9  74.2   
San Joaquin Valley 52 2 Y Y 279    48.9  58.2  229.6  279       
Salton Sea 72 6 Y Y 229    59.6  72.0  166.8  229       
Sacramento Valley 23 0 Y N 145    33.9  36.8  126.3  145       

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

Other Pollutants  |  PM10 Home Page  |  Air Basin (Site) Selection Map  |   Map for this Basin 
District/Site Directory  |  County/Site Directory  |  Monitoring Site Directory 
ARB Home Page  |   Search ARB Programs/Topics  |   Email ARB Help Attendant