SmogRank / World / North America / United States / North Carolina

Most polluted cities in North Carolina, United States

9 measured cities, last 24 hours; 1 above the WHO 24-hour guideline. Worst: Wake Forest at 17.6 µg/m³, #72 in the world.

Alabama: 5 measured citiesGeorgia: 10 measured citiesSouth Carolina: 2 measured citiesNorth Carolina: 9 measured citiesVirginia: 9 measured citiesKentucky: 9 measured citiesTennessee: 7 measured cities#9 Hickory: 8.6 µg/m³#8 Greenville: 9.3 µg/m³#7 Greensboro: 10.1 µg/m³#6 Asheville: 10.2 µg/m³#5 Charlotte: 10.9 µg/m³#4 Morrisville: 11.0 µg/m³#3 Clemmons: 12.4 µg/m³#2 Winston-Salem: 14.2 µg/m³#1 Wake Forest: 17.6 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
← Wake Forest 17.6 µg/m³ 15 µg/m³ WHO 24-hour guideline0
Every measured city in North Carolina, United States, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1Wake Forestlow-cost sensors 21.2×
  2. 2Winston-Salem 20.9×
  3. 3Clemmons 20.8×
  4. 4Morrisville 20.7×
  5. 5Charlotte 20.7×
  6. 6Asheville 20.7×
  7. 7Greensboro 20.7×
  8. 8Greenville 10.6×
  9. 9Hickory 10.6×
Low risk1–3
Moderate risk4–6
High risk7–10
Very high risk10+

Canada's AQHI+ for PM2.5 (1 point per 10 µg/m³), which is defined on hourly values. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Estimated: cities without a monitor

North Carolina cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Cary≈ 6 µg/m³Low risk
Wilmington≈ 5 µg/m³Low risk
High Point≈ 5 µg/m³Low risk
Concord≈ 4 µg/m³Low risk
Gastonia≈ 4 µg/m³Low risk
Jacksonville≈ 8 µg/m³Low risk
Chapel Hill≈ 4 µg/m³Low risk
Rocky Mount≈ 5 µg/m³Low risk
Huntersville≈ 4 µg/m³Low risk
Burlington≈ 4 µg/m³Low risk
Wilson≈ 5 µg/m³Low risk
Kannapolis≈ 4 µg/m³Low risk
Apex≈ 6 µg/m³Low risk
Indian Trail≈ 6 µg/m³Low risk
Goldsboro≈ 6 µg/m³Low risk
Monroe≈ 4 µg/m³Low risk
Salisbury≈ 4 µg/m³Low risk
Holly Springs≈ 6 µg/m³Low risk
Matthews≈ 6 µg/m³Low risk
New Bern≈ 6 µg/m³Low risk
Fort Bragg≈ 5 µg/m³Low risk
Sanford≈ 5 µg/m³Low risk
Cornelius≈ 4 µg/m³Low risk
Garner≈ 6 µg/m³Low risk
Thomasville≈ 5 µg/m³Low risk
Statesville≈ 4 µg/m³Low risk
Asheboro≈ 4 µg/m³Low risk
Mint Hill≈ 6 µg/m³Low risk
Fuquay-Varina≈ 6 µg/m³Low risk
Kernersville≈ 4 µg/m³Low risk
Lumberton≈ 4 µg/m³Low risk
Kinston≈ 6 µg/m³Low risk
Carrboro≈ 4 µg/m³Low risk
Havelock≈ 6 µg/m³Low risk
Shelby≈ 4 µg/m³Low risk
Boone≈ 3 µg/m³Low risk
Elizabeth City≈ 5 µg/m³Low risk
Leland≈ 5 µg/m³Low risk
Lenoir≈ 3 µg/m³Low risk
Morganton≈ 4 µg/m³Low risk

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SmogRank, most polluted cities in North Carolina, United States, PM2.5, last 24 hours to 2 Oct 2026, 06:00 UTC, smogrank.com/us/region/north-carolina.

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Updated 2026-10-02 06:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the Canada AQHI+ PM2.5 sub-index.