Average light extinction (1/Mm) and percentage contributions to the aerosol light extinction (Bep) of the major aerosol chemical components in 20% best, middle 60%, and 20% worst days based on data available during the year of 1997-2002

Location Data Sulfate Nitrate OMC LAC Soil CM Aerosol Ext   Sulfate% Nitrate% OMC% LAC% Soil% CM%
SACR1 20% Best 4.30 2.42 2.69 1.35 0.49 2.95 14.20   30.3% 17.0% 19.0% 9.5% 3.5% 20.8%
SACR1 Middle 60% 9.17 4.84 4.60 1.70 1.29 6.11 27.71   33.1% 17.5% 16.6% 6.1% 4.7% 22.0%
SACR1 20% Worst 18.93 10.09 6.09 2.40 1.93 10.70 50.15   37.8% 20.1% 12.1% 4.8% 3.9% 21.3%
SACR1 Average 10.19 5.43 4.53 1.78 1.26 6.42 29.61   34.4% 18.3% 15.3% 6.0% 4.3% 21.7%