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%
CHIR1 20% Best 3.03 0.60 1.90 0.86 0.40 1.49 8.27   36.6% 7.3% 23.0% 10.4% 4.8% 18.0%
CHIR1 Middle 60% 6.54 0.95 3.08 1.21 0.91 3.24 15.93   41.1% 5.9% 19.4% 7.6% 5.7% 20.4%
CHIR1 20% Worst 11.57 1.25 6.45 1.75 1.94 7.22 30.18   38.3% 4.1% 21.4% 5.8% 6.4% 23.9%
CHIR1 Average 6.86 0.94 3.53 1.25 1.02 3.70 17.30   39.7% 5.4% 20.4% 7.2% 5.9% 21.4%