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%
SIME1 20% Best 4.57 0.56 0.50 0.19 0.04 1.30 7.15   63.9% 7.8% 7.0% 2.6% 0.5% 18.1%
SIME1 Middle 60% 11.30 1.44 2.10 0.82 0.19 2.54 18.39   61.4% 7.8% 11.4% 4.5% 1.0% 13.8%
SIME1 20% Worst 21.75 2.21 5.85 2.75 0.37 3.87 36.80   59.1% 6.0% 15.9% 7.5% 1.0% 10.5%
SIME1 Average 12.04 1.42 2.53 1.08 0.19 2.56 19.83   60.7% 7.2% 12.8% 5.5% 1.0% 12.9%