Raleigh vs Greensboro Air Quality Comparison
Which city has cleaner air right now, from the latest EPA AirNow AQI
As of September 23, 2026, Raleigh, NC has cleaner air than Greensboro, NC — AQI 19 (Good) vs 21 (Good), a gap of 2 AQI points in the latest EPA AirNow observations. Lower AQI means cleaner air. Raleigh's reading is driven by O3 and Greensboro's by O3.
Raleigh, NC
Good
Greensboro, NC
Good
Summary
Raleigh has 2 points better air quality
Raleigh has an AQI of 19 compared to 21
Reduce Indoor Ozone in Greensboro
Today's main pollutant in Greensboro is ground-level ozone (AQI 21). Important: standard HEPA filters do NOT remove ozone — only a purifier with a substantial activated-carbon bed adsorbs it. The biggest wins are cutting indoor sources (gas appliances, certain "ionizer" purifiers) and ventilating when outdoor ozone is low (early morning). A high-carbon unit helps with the gases and VOCs that linger indoors.
Compare activated-carbon purifiers (for gases & ozone):
Prices are approximate and subject to change. As an Amazon Associate, we earn from qualifying purchases at no extra cost to you.
5-Day Forecast Comparison
| Day | Raleigh | Greensboro | Better |
|---|---|---|---|
| Today | AQI 28 | AQI 22 | Greensboro |
| Wed, Sep 23 | AQI 25 | AQI 24 | Greensboro |
| Thu, Sep 24 | AQI 38 | AQI 40 | Raleigh |
| Fri, Sep 25 | AQI 40 | AQI 42 | Raleigh |