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%
TRIN1 20% Best 1.64 0.49 1.49 0.52 0.08 0.33 4.55   36.1% 10.7% 32.8% 11.4% 1.7% 7.2%
TRIN1 Middle 60% 4.84 1.72 4.62 1.27 0.48 1.26 14.20   34.1% 12.1% 32.6% 9.0% 3.4% 8.9%
TRIN1 20% Worst 8.85 7.96 26.27 5.49 0.87 3.10 52.55   16.8% 15.1% 50.0% 10.5% 1.7% 5.9%
TRIN1 Average 5.02 2.74 8.38 1.98 0.48 1.45 20.04   25.1% 13.7% 41.8% 9.9% 2.4% 7.2%