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Summer Haze Event

Haze events in the summer are common in the East due to high concentrations of sulfate particles. These sulfate particles grow rapidly in high humidity environments to a size that effectively scatters light. This scattering of light causes poor visibility. Below are some webcam pics from Burlington ( during a haze event in mid-August 2002. Also, is an accompanying graph of continuous ozone and PM2.5 measurements made at monitoring sites in Vermont.

Burlington, VT Haze Event (August 2002)
Maximum hourly ozone and PM2.5 values noted

PM2.5 and Ozone Hourly Averages (August 2002)



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