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 2002-2004

Location Data Rayleigh Sulfate Nitrate OMC LAC Soil Sea Salt CM Aerosol Ext Bext Visual Range (Km) Deciview
WIMO1 20% Best 11.00 5.11 2.79 3.60 1.27 0.31 0.10 2.69 15.87 26.87 154.76 9.78
WIMO1 Middle 60% 11.00 19.39 8.82 7.42 2.45 0.99 0.16 4.52 43.75 54.75 77.56 16.70
WIMO1 20% Worst 11.00 49.12 23.72 17.28 4.47 0.79 0.15 4.64 100.18 111.18 37.33 23.81
WIMO1 Average 11.00 22.69 10.64 8.69 2.63 0.82 0.15 4.18 49.78 60.78 84.32 16.80

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 2002-2004

Location Data Sulfate Nitrate OMC LAC Soil Sea Salt CM PM2.5
WIMO1 20% Best 0.77 0.39 1.19 0.13 0.31 0.02 4.48 2.35
WIMO1 Middle 60% 2.78 1.17 2.28 0.25 0.99 0.03 7.53 7.09
WIMO1 20% Worst 6.09 2.72 4.56 0.45 0.79 0.03 7.74 14.64
WIMO1 Average 3.07 1.33 2.53 0.26 0.82 0.03 6.97 7.70