
United States · Illinois
Air quality & tree cover in Illinois
Today's air quality (AQI) and satellite-measured tree cover for Illinois's cities, each over the same 1.2 mi (2 km) around its center.
Right now, Chicago has the cleanest air of the 6 Illinois cities we track (AQI 42, Good), and Naperville the worst (AQI 53, Moderate). Naperville has the most tree cover, at 61.3% — #12 of 270 large US cities.
- Places tracked
- 6
- Average tree cover
- 46.0%US cities: 29.4%
- Worst air right now
- NapervilleAQI 53
Air quality today and tree cover across Illinois
| Chicago | 42Good | 11.6% | 56.9K | #211 of 270 |
|---|---|---|---|---|
| Rockford | 44Good | 53.7% | — | #27 of 270 |
| Joliet | 53Moderate | 46.1% | — | #46 of 270 |
| Naperville | 53Moderate | 61.3% | — | #12 of 270 |
| Peoria | 44Good | 43.5% | — | #53 of 270 |
| Elgin | 52Moderate | 59.6% | — | #13 of 270 |
Air quality is the US AQI from Open-Meteo / CAMS, refreshed hourly. Tree cover is measured within 1.2 mi (2 km) of each city center from Sentinel-2 imagery. The US greenness rank covers cities of 100,000+ people; see the full ranking.
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