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Primary air pollutant in the Chelsea area:
OZONE - 14 Good
Enjoy your outdoor activities.
Other Pollutants:
PM2.5 - 12 Good
PM10 - 5 Good
Saturday-Monday: A cold front will move through the area on Saturday with skies being overcast and rainy conditions. Surface high pressure will build into the area on Sunday to clear the skies through Monday. PM2.5 is expected to be in the green range over the weekend and in the yellow range on Monday. ML
Primary Pollutant: PM2.5 - 29 Good
Primary Pollutant: PM2.5 - 24 Good
Primary Pollutant: PM2.5 - 29 Good
Primary Pollutant: PM2.5 - 53 Moderate