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%
RAFA1 20% Best 3.62 2.40 1.63 0.69 0.21 1.45 10.00   36.2% 24.0% 16.3% 6.9% 2.1% 14.5%
RAFA1 Middle 60% 12.46 8.26 5.68 2.02 0.80 4.89 34.12   36.5% 24.2% 16.7% 5.9% 2.3% 14.3%
RAFA1 20% Worst 23.01 14.48 10.53 3.21 1.08 6.73 59.04   39.0% 24.5% 17.8% 5.4% 1.8% 11.4%
RAFA1 Average 12.84 8.36 5.86 2.00 0.74 4.58 34.37   37.4% 24.3% 17.0% 5.8% 2.2% 13.3%