Air quality in United States
Air quality in Indiana today
Updated
Moderate: average US AQI 57 across 14 cities in Indiana Worst now: Fort Wayne (68); cleanest: Columbus, IN (49).
Live US AQI, PM2.5 and ozone for cities across Indiana, compared with the United States average.
- Average US AQI
- 57 Moderate
- United States average
- 51 747 cities
- Most polluted now
- Fort Wayne AQI 68
- Cleanest now
- Columbus, IN AQI 49
- Cities above 100
- 0
Air quality in Indiana today
Right now the modelled air quality in Indiana averages a US AQI of 57 (Moderate) across the 14 cities we track. By category: 2 Good, 12 Moderate (of 14).
That is 6 points worse than the United States average of 51, ranking 42 of 51 states from cleanest to most polluted.
Fort Wayne has the worst air at 68 (PM2.5 14 µg/m³), and Columbus, IN the cleanest at 49. No tracked city is above 100, so no group needs to change plans.
Indiana cities by AQI (most polluted first)
| City | US AQI | Category | PM2.5 µg/m³ | PM10 µg/m³ | Ozone µg/m³ |
|---|---|---|---|---|---|
| Fort Wayne | 68 | Moderate | 13.9 | 14 | 80 |
| Elkhart | 66 | Moderate | 12.3 | 12 | 74 |
| Richmond | 59 | Moderate | 10.4 | 10 | 87 |
| Marion | 58 | Moderate | 6.9 | 7 | 94 |
| Gary | 57 | Moderate | 9.1 | 9 | 68 |
| Valparaiso | 57 | Moderate | 9.1 | 9 | 68 |
| Hobart | 57 | Moderate | 9.1 | 9 | 68 |
| Zionsville | 57 | Moderate | 8.6 | 9 | 87 |
| Anderson | 55 | Moderate | 7.1 | 7 | 88 |
| Munster | 55 | Moderate | 11.4 | 11 | 51 |
| Highland | 55 | Moderate | 11.4 | 11 | 51 |
| Indianapolis | 53 | Moderate | 7.3 | 7 | 82 |
| Evansville | 49 | Good | 6.9 | 7 | 98 |
| Columbus | 49 | Good | 4.3 | 4 | 99 |
What the US AQI numbers mean
| US AQI | Category | What it means |
|---|---|---|
| 0-50 | Good | Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. |
| 51-100 | Moderate | Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. |
| 101-150 | Unhealthy for Sensitive Groups | People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. |
| 151-200 | Unhealthy | Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. |
| 201-300 | Very Unhealthy | Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors. |
| 301-500 | Hazardous | Emergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500. |
Modelled by CAMS (Copernicus) via Open-Meteo, refreshed twice a day; read hour by hour from the forecast.
Cities in Indiana
- Air quality in Indianapolis
- Air quality in Fort Wayne
- Air quality in Evansville
- Air quality in South Bend
- Air quality in Gary
- Air quality in Anderson
- Air quality in Elkhart
- Air quality in Columbus
- Air quality in Richmond
- Air quality in Valparaiso
- Air quality in Marion
- Air quality in Hobart
- Air quality in Zionsville
- Air quality in Munster
- Air quality in Highland
More
Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS).