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%
MORA1 20% Best 2.80 0.67 1.79 0.66 0.05 0.78 6.74   41.5% 9.9% 26.5% 9.8% 0.8% 11.6%
MORA1 Middle 60% 12.03 2.25 6.43 2.67 0.19 1.51 25.07   48.0% 9.0% 25.6% 10.6% 0.8% 6.0%
MORA1 20% Worst 29.44 4.94 13.82 5.49 0.53 2.16 56.37   52.2% 8.8% 24.5% 9.7% 0.9% 3.8%
MORA1 Average 13.80 2.49 7.04 2.85 0.23 1.50 27.92   49.4% 8.9% 25.2% 10.2% 0.8% 5.4%