PPT Slide

3 PM Ozone , 24 hour PM-10 and Sulfate on August 28, 1992

(see Movie: PMOZSU92.AVI)

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This frame from the movie PMOZSU92.AVI shows (US-only) patterns of 3 PM ozone (left) and daily PM-10 (right) and PM-10 Sulfate (red bars) on August 28, 1992. This was a relatively severe multi-pollutant episode in the Northeastern US.

Note: PM-10 Sulfate concentrations are not routinely measured at all sites. During this time period they are limited primarily to the States of Illinois, New York, Vermont New Hampshire and Maine.