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Primary air pollutant in the Old Saybrook Center area:
OZONE - 33 Good
Enjoy your outdoor activities.
Primary Pollutant: PM2.5 - 136 Unhealthy for Sensitive Groups
Secondary Pollutant: OZONE - 77 Moderate
Primary Pollutant: PM2.5 - 82 Moderate
Secondary Pollutant: OZONE - 44 Good