SmogRank / World / United States / Indiana / September 2024
Most polluted cities in Indiana, United States, September 2024
22 cities in Indiana, United States ranked by their average PM2.5 over the 30 days. Worst: Gary at 8.7 µg/m³, #620 of 1,964 cities in the world. Cleanest: Columbus at 4.5. 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.
- 1Gary 0%
- 2Portage 0%
- 3Indianapolis 0%
- 4Elkhart 0%
- 5Hammond 0%
- 6East Chicago 0%
- 6Fort Wayne 0%
- 8Jeffersonville 0%
- 9Terre Haute 0%
- 10South Bend 0%
- 11Evansville 0%
- 11Lafayette 0%
- 13Michigan City 0%
- 14Muncie 0%
- 15Kokomo 0%
- 16McCordsville 0%
- 16Columbia City 0%
- 18Jasper 0%
- 19Anderson 0%
- 20Bloomington 0%
- 21New Albany 0%
- 22Columbus 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
All cities in the world, September 2024 · All cities in United States, September 2024 · Indiana now
Use this board
SmogRank, most polluted cities in Indiana, United States, PM2.5, September 2024, smogrank.com/us/region/indiana/history/2024-09 (accessed 6 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.