Air quality in Blount County, Tennessee, United States of America today
Mr. Duck’s Air Quality Score
Moderate air today for Blount County, Tennessee, 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 Blount County, Tennessee is rated as Moderate today. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 14.0 µg/m³ based on three valid observations recorded by OpenAQ.
Data for this assessment are limited to the available readings and do not include other pollutants such as PM10. 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 Blount County includes four measured pollutants—carbon monoxide (CO), nitrogen oxide (NO), ozone (O₃) and fine particulate matter (PM2.5)—drawn from a single monitoring site, Look Rock in the Great Smoky Mountains National Park. All four rows are present, giving a total of four data points across the county.
The most recent observations were recorded on 2026-02-10 at 23:00 UTC for NO, O₃ and PM2.5, indicating that these three pollutants have been updated within the past seven days. The CO reading is older, last refreshed on 2025-02-11 at 14:00 UTC, so its timeliness lags behind the others. Each pollutant shows a single reported value with no variation across the dataset: CO consistently measures 0.1 ppm, NO registers 0.0 ppm, O₃ is 0.049 ppm and PM2.5 records 14.0 µg/m³. Because the minimum, median and maximum are identical for each pollutant, there is no observable spread in the data.
With only one monitoring location contributing all four pollutants, coverage across Blount County is limited; conditions can differ in other parts of the county that are not represented here. The dataset’s freshness is mixed—three pollutants have recent updates, while CO remains over a year old—so users should keep in mind that the available figures may not capture current variations throughout the area.
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 for Blount County reflects three valid measurements and is updated within 3 days, with the most recent reading recorded at 2026‑02‑10T23:00:00+00:00. This snapshot provides a brief view of current conditions; however, air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment within the county.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Look Rock - GSMNP | co | 0.1 | ppm | 2025-02-11 14:00 UTC |
| Look Rock - GSMNP | no | 0.0 | ppm | 2026-02-10 23:00 UTC |
| Look Rock - GSMNP | o3 | 0.049 | ppm | 2026-02-10 23:00 UTC |
| Look Rock - GSMNP | pm25 | 14.0 | µg/m³ | 2026-02-10 23:00 UTC |