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%
CRLA1 20% Best 1.40 0.33 0.95 0.64 0.09 0.47 3.87   36.1% 8.6% 24.4% 16.5% 2.2% 12.1%
CRLA1 Middle 60% 3.81 1.00 3.34 1.50 0.32 1.31 11.29   33.8% 8.9% 29.6% 13.3% 2.8% 11.6%
CRLA1 20% Worst 7.07 3.45 32.86 6.99 0.74 3.78 54.88   12.9% 6.3% 59.9% 12.7% 1.3% 6.9%
CRLA1 Average 4.02 1.38 9.02 2.48 0.36 1.66 18.92   21.3% 7.3% 47.7% 13.1% 1.9% 8.8%