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Primary air pollutant in the New Canaan area:
OZONE - 32 Good
Enjoy your outdoor activities.
Primary Pollutant: PM2.5 - 136 Unhealthy for Sensitive Groups
Secondary Pollutant: OZONE - 47 Good
Primary Pollutant: PM2.5 - 185 Unhealthy
Secondary Pollutant: OZONE - 71 Moderate
Primary Pollutant: PM2.5 - 89 Moderate
Secondary Pollutant: OZONE - 44 Good