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
| Metric | Value |
|---|---|
| Air Quality Grade | C (63/100) |
| 5-Year Median AQI | 43 |
| Current Median AQI | 44 |
| Dominant Pollutant | PM2.5 |
| Trend | Stable |
| 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.