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AirHistory

What Is Air Quality in Johnston, North Carolina, NC?

Johnston, North Carolina, NC has an Air Quality Grade of C with a 5-year median AQI of 43. The dominant pollutant is PM2.5.

Key Data

MetricValue
Air Quality GradeC (63/100)
5-Year Median AQI43
Current Median AQI44
Dominant PollutantPM2.5
TrendStable
Unhealthy Days (5yr)2

Johnston, North Carolina, NC has an Air Quality Grade of C with a 5-year median AQI of 43. The dominant pollutant is PM2.5.