SmogRank / World / United States / Pennsylvania / November 2024
Most polluted cities in Pennsylvania, United States, November 2024
31 cities in Pennsylvania, United States ranked by their average PM2.5 over the 30 days. Worst: New Holland at 8.3 µg/m³, #1,246 of 2,572 cities in the world. Cleanest: Erie at 4.8. A city needs measurements on 70% of the days to be ranked.
Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.
- 1New Holland 0%
- 2Philadelphia 0%
- 3Beaver Falls 0%
- 3West Mifflin 0%
- 5Bensalem 0%
- 5Hershey 0%
- 5Lancaster 0%
- 8Harrisburg 0%
- 9Lebanon 0%
- 10York 0%
- 10Jefferson Hills 0%
- 12Johnstown 0%
- 12Kennedy Township 0%
- 14Schlusser 0%
- 14Scranton 0%
- 16Pittsburgh 0%
- 16Wyomissing 0%
- 18New Brighton 0%
- 18Wilkinsburg 0%
- 20Kennett Square 0%
- 20Norristown 0%
- 20State College 0%
- 23Monessen 0%
- 24Altoona 0%
- 24Bethlehem 0%
- 24Greensburg 0%
- 27Allentown 0%
- 28Uniontown 0%
- 29Hermitage 0%
- 30Canonsburg 0%
- 31Erie 0%
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
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SmogRank, most polluted cities in Pennsylvania, United States, PM2.5, November 2024, smogrank.com/us/region/pennsylvania/history/2024-11 (accessed 6 Oct 2026).
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