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Primary air pollutant in the Northwest Harwinton area:
OZONE - 38 Good
Enjoy your outdoor activities.
Primary Pollutant: OZONE - 42 Good
Secondary Pollutant: PM2.5 - 28 Good
Primary Pollutant: OZONE - 67 Moderate
Secondary Pollutant: PM2.5 - 52 Moderate
Primary Pollutant: OZONE - 43 Good
Secondary Pollutant: PM2.5 - 39 Good