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%
GICL1 20% Best 2.58 0.38 1.70 0.81 0.22 1.04 6.74   38.2% 5.7% 25.3% 12.1% 3.3% 15.4%
GICL1 Middle 60% 5.65 0.70 3.99 1.34 0.73 2.30 14.70   38.4% 4.8% 27.1% 9.1% 5.0% 15.6%
GICL1 20% Worst 9.98 0.86 14.03 4.09 1.17 3.64 33.77   29.5% 2.6% 41.5% 12.1% 3.5% 10.8%
GICL1 Average 5.94 0.67 5.60 1.80 0.72 2.33 17.05   34.8% 3.9% 32.8% 10.6% 4.2% 13.6%