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Primary air pollutant in the Northwest Harwinton area:
OZONE - 21 Good
Enjoy your outdoor activities.
Other Pollutants:
PM2.5 - 8 Good
PM10 - 1 Good
Primary Pollutant: PM2.5 - 54 Moderate
Primary Pollutant: PM2.5 - 147 Unhealthy for Sensitive Groups
Primary Pollutant: PM2.5 - 55 Moderate