Air quality in Asheville, North Carolina, United States of America today
Mr. Duck’s Air Quality Score
Good air today for Asheville, North Carolina, United States of America
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Asheville, North Carolina is rated as Good today. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 4.0 µg/m³ and a PM10 reference value of 13.0 µg/m³ based on two valid observations collected through OpenAQ.
Overall conditions meet the criteria for a Good category according to the latest assessment. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.
Latest sensor values
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
What the data includes
The dataset for Asheville pulls in measurements from ten individual rows collected at two monitoring stations. It currently provides values for five pollutants: PM1, PM2.5, PM10, relative humidity and temperature. The most recent data points for the particulate matter fractions are fairly fresh – both PM2.5 and PM10 were last recorded on 2026-02-11 00:00 UTC and are flagged as having been updated within the past seven days. In contrast, the single readings for PM1, relative humidity and temperature have no timestamp information, so their freshness cannot be confirmed.
PM2.5 values in the sample range from a low of 4.0 µg/m³ to a high of 16.0 µg/m³, with a median around 5.6 µg/m³; the 10th‑percentile sits near 4.3 µg/m³ and the 90th‑percentile close to 13.1 µg/m³, indicating most recent observations cluster in the lower half of the overall spread. PM10 shows a broader distribution, spanning from about 3.5 µg/m³ up to 13.0 µg/m³, with a median of 8.0 µg/m³ and percentiles at roughly 4.4 µg/m³ (10th) and 12.0 µg/m³ (90th). The lone PM1 measurement is fixed at 4.775 µg/m³, matching its minimum, median and maximum because only one row reports it.
Relative humidity and temperature each have a single reported value – 50.09 % and 21.49 °C respectively – without any indication of when they were captured. Because most rows lack recent timestamps, the dataset gives a limited snapshot of current conditions; air quality can differ across neighborhoods and over time, so these figures represent only part of Asheville’s overall atmospheric picture.
Learn more about sources and filtering: About the data.
Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)
Latest sensor values (bars)
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
Data notes
The data shown reflects two valid measurements and was Updated today (last refreshed on 2026‑02‑11T00:00:00+00:00). These values represent a snapshot of ambient conditions at the time of collection; air quality can differ across neighborhoods and change throughout the day, so this information may not capture localized or temporal variations within Asheville.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| BDED | pm25 | 16.0 | µg/m³ | 2019-08-12 16:00 UTC |
| BDED | pm10 | 8.0 | µg/m³ | 2024-11-07 20:00 UTC |
| BDED | pm25 | 5.0 | µg/m³ | 2024-11-07 20:00 UTC |
| Asheville, NC USA | pm1 | 4.774999936421712 | µg/m³ | |
| Asheville, NC USA | pm10 | 3.500000019868215 | µg/m³ | |
| Asheville, NC USA | pm25 | 6.174999952316284 | µg/m³ | |
| Asheville, NC USA | relativehumidity | 50.09166653951009 | % | |
| Asheville, NC USA | temperature | 21.490833441416424 | c | |
| BDED | pm10 | 13.0 | µg/m³ | 2026-02-11 00:00 UTC |
| BDED | pm25 | 4.0 | µg/m³ | 2026-02-11 00:00 UTC |