Average light extinction coefficients (1/Mm) of the major aerosol chemical components in 20% best, middle 60% and 20% worst days based on data available during 2000-2004

Location Data Rayleigh Sulfate Nitrate OMC LAC Soil Sea Salt CM Aerosol Ext Bext Visual Range (Km) Deciview
CHAS1 20% Best 11.00 18.71 4.08 6.30 2.93 0.93 1.21 2.79 36.96 47.96 84.63 15.56
CHAS1 Middle 60% 11.00 39.41 5.19 10.60 4.65 1.19 0.61 3.28 64.94 75.94 53.48 20.12
CHAS1 20% Worst 11.00 89.10 5.23 20.77 6.63 0.62 0.20 3.19 125.75 136.75 30.41 25.84
CHAS1 Average 11.00 45.37 4.98 11.81 4.71 1.03 0.65 3.17 71.71 82.71 54.95 20.38

Mass concentrations of the major aerosol chemical components and PM2.5  (mg/m3) in 20% best, middle 60% and 20% worst days based on data available during 2000-2004

Location Data Sulfate Nitrate OMC LAC Soil Sea Salt CM PM2.5
CHAS1 20% Best 1.93 0.40 1.99 0.29 0.93 0.17 4.65 5.48
CHAS1 Middle 60% 3.92 0.52 3.09 0.47 1.19 0.09 5.47 8.82
CHAS1 20% Worst 7.85 0.52 5.27 0.66 0.62 0.03 5.31 14.00
CHAS1 Average 4.33 0.50 3.31 0.47 1.03 0.09 5.28 9.21