Today's sulfur dioxide levels (Nov. 16th) have already reached 375 ppb, well above the EPA one hour health standard of 75 ppb sulfur dioxide.
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Below are the November 15, 2011 readings which peaked at 350 ppb sulfur dioxide
UPDATE: Air Quality Readings for Sulfur Dioxide at Ch_Vista 11/26/2011 - 299 ppb SO2
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