United States · Pennsylvania
Air quality & tree cover in Pennsylvania
Today's air quality (AQI) and satellite-measured tree cover for Pennsylvania's cities, each over the same 1.2 mi (2 km) around its center.
Right now, Erie has the cleanest air of the 4 Pennsylvania cities we track (AQI 35, Good), and Philadelphia the worst (AQI 42, Good). Erie has the most tree cover, at 42.9%.
- Places tracked
- 4
- Average tree cover
- 32.2%US cities: 29.4%
- Worst air right now
- PhiladelphiaAQI 42
Air quality today and tree cover across Pennsylvania
| Philadelphia | 42Good | 11.5% | 56.7K | #212 of 270 |
|---|---|---|---|---|
| Pittsburgh | 38Good | 34.1% | — | #100 of 270 |
| Allentown | 38Good | 40.3% | — | #76 of 270 |
| Erie | 35Good | 42.9% | — | — |
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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