SmogRank / World / United States / North Carolina / August 2023
Most polluted cities in North Carolina, United States, August 2023
16 cities in North Carolina, United States ranked by their average PM2.5 over the 31 days. Worst: Raleigh at 11.6 µg/m³, #361 of 1,926 cities in the world. Cleanest: Murraysville at 5.7. 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.
- 1Raleigh 0%
- 2Winston-Salem 0%
- 3Morrisville 0%
- 4Fayetteville 0%
- 4Greensboro 0%
- 6Tarboro 0%
- 7Roanoke Rapids 0%
- 8Clemmons 0%
- 8Greenville 0%
- 10Charlotte 0%
- 11Clayton 0%
- 12Hickory 0%
- 13Lexington 0%
- 14Durham 0%
- 15Asheville 0%
- 16Murraysville 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, August 2023 · All cities in United States, August 2023 · North Carolina now
Use this board
SmogRank, most polluted cities in North Carolina, United States, PM2.5, August 2023, smogrank.com/us/region/north-carolina/history/2023-08 (accessed 7 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.