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%
HAVO1 20% Best 1.79 0.19 1.87 0.23 0.05 0.31 4.43   40.3% 4.4% 42.1% 5.1% 1.2% 6.9%
HAVO1 Middle 60% 6.34 1.00 2.43 0.29 0.15 0.94 11.15   56.9% 9.0% 21.8% 2.6% 1.3% 8.4%
HAVO1 20% Worst 44.72 1.03 3.68 0.91 0.18 0.80 51.33   87.1% 2.0% 7.2% 1.8% 0.3% 1.6%
HAVO1 Average 13.15 0.85 2.57 0.40 0.14 0.79 17.90   73.5% 4.8% 14.4% 2.2% 0.8% 4.4%