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%
TONT1 20% Best 3.35 0.94 2.79 1.37 0.46 1.89 10.80   31.0% 8.7% 25.8% 12.7% 4.3% 17.5%
TONT1 Middle 60% 6.37 1.61 4.78 2.01 1.03 3.85 19.65   32.4% 8.2% 24.3% 10.3% 5.2% 19.6%
TONT1 20% Worst 9.17 2.89 9.74 3.37 1.99 7.22 34.38   26.7% 8.4% 28.3% 9.8% 5.8% 21.0%
TONT1 Average 6.35 1.74 5.40 2.17 1.11 4.16 20.94   30.3% 8.3% 25.8% 10.3% 5.3% 19.8%