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Viking
Lake |
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| Chemical components
responsible for haze |
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In Viking Lake, the average PM2.5 mass concentration
during 6/2002-8/2003 is 11 µg/m3, and the average total light extinction
coefficient (Bext) is 94 Mm-1 (Visual Range ~ 42 Km; Deciview ~ 22). Sulfate
and nitrate are two of the largest contributors to haze, with an average
contribution of 35% and 29%, respectively. Figure 2 indicates that sulfate
in the summer and nitrate in the winter are the major causes of haze. |
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| Figure 2. Average
contributions of major aerosol chemical components to light extinction
(Based on data available in 1997-2002) |
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| Figure 3. Average
contributions of major aerosol chemical components to light extinction
during 20% worst days in each month (Based on data available in 1997-2002) |
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Last updated 24 September 2004
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