As shown in Figure 2, the average PM2.5 mass
concentration measured at MOOS1 during 2000 to 2004 is 5.0
µg/m3. The average total light extinction coefficient (Bext) is 48.8 Mm-1
(Visual Range ~ 108 Km; Deciview ~ 14). The average contributions of the
major aerosol components to Moosehorn haze are particulate sulfate 45.7%,
coarse mass (CM) 3.2%, organic matter (OMC) 13.1%, elemental carbon (light
absorbing carbon, LAC) 5.0%, fine soil 0.5% and nitrate 6.5%.
Figure 2. Average
contributions of major aerosol chemical components to light extinction
(Based on data available in 2000-2004)
Figure 3. Percentage of
sampling days that are 20% worst days in each month (Based on data available
in 2000-2004)
Figure 4. Average
contributions of major aerosol chemical components to light extinction
during 20% worst days in each month (Based on data available in 2000-2004)
For a detailed examination of
the aerosol characteristics at Moosehorn consult the
aerosol description web page.
