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%
MOHO1 20% Best 1.64 0.51 0.52 0.26 0.06 0.18 3.15   52.0% 16.0% 16.4% 8.1% 1.8% 5.6%
MOHO1 Middle 60% 6.23 2.14 2.93 1.04 0.24 0.73 13.31   46.8% 16.1% 22.0% 7.8% 1.8% 5.5%
MOHO1 20% Worst 12.93 5.44 8.84 2.50 0.71 2.25 32.68   39.6% 16.7% 27.1% 7.7% 2.2% 6.9%
MOHO1 Average 6.71 2.50 3.68 1.19 0.30 0.94 15.31   43.8% 16.3% 24.0% 7.7% 2.0% 6.1%