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%
GLAC1 20% Best 3.64 0.93 3.51 1.51 0.19 0.96 10.73   33.9% 8.6% 32.7% 14.1% 1.7% 8.9%
GLAC1 Middle 60% 7.95 1.94 8.47 3.23 0.58 3.31 25.47   31.2% 7.6% 33.3% 12.7% 2.3% 13.0%
GLAC1 20% Worst 14.09 6.80 22.70 6.37 1.60 7.72 59.27   23.8% 11.5% 38.3% 10.7% 2.7% 13.0%
GLAC1 Average 8.33 2.72 10.36 3.52 0.71 3.73 29.36   28.4% 9.3% 35.3% 12.0% 2.4% 12.7%