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%
JOSH1 20% Best 3.20 1.92 1.86 1.08 0.43 1.94 10.41   30.7% 18.5% 17.8% 10.4% 4.1% 18.6%
JOSH1 Middle 60% 7.75 8.15 5.12 2.36 0.89 4.37 28.63   27.1% 28.5% 17.9% 8.2% 3.1% 15.3%
JOSH1 20% Worst 13.77 23.59 10.05 3.91 1.98 9.62 62.91   21.9% 37.5% 16.0% 6.2% 3.1% 15.3%
JOSH1 Average 8.08 10.07 5.48 2.42 1.02 4.96 32.03   25.2% 31.4% 17.1% 7.6% 3.2% 15.5%