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%
SYCA1 20% Best 2.68 1.15 2.65 1.70 0.74 1.17 10.09   26.6% 11.4% 26.3% 16.8% 7.3% 11.6%
SYCA1 Middle 60% 5.17 1.94 5.50 2.29 2.86 3.49 21.25   24.3% 9.1% 25.9% 10.8% 13.5% 16.4%
SYCA1 20% Worst 5.95 1.71 13.94 4.23 8.03 11.57 45.42   13.1% 3.8% 30.7% 9.3% 17.7% 25.5%
SYCA1 Average 4.83 1.73 6.64 2.57 3.48 4.67 23.93   20.2% 7.2% 27.8% 10.7% 14.6% 19.5%