Townsend, Tennessee Air Quality
Townsend has a median AQI of 46, earning an air quality grade of B+ — good air quality that ranks better than 24% of US cities. Air quality has remained relatively stable over the past decade. Ground-level ozone is the primary concern, typically peaking on warm sunny days due to vehicle and industrial emissions. In 2025, Townsend recorded 156 good air quality days (70% of monitored days) and 1 unhealthy days.
Population: 701 • County: Blount
Current AQI
Quick Facts
| Current AQI | 32 — Good |
| Air Quality Grade | B+ |
| Median AQI (2025) | 46 |
| vs. U.S. Cities | Better than 24% |
| Primary Pollutant | Ozone |
| Unhealthy Days/Year | 1 |
| 10-Year Trend | → Stable |
| Data Source | EPA AQS (historical) · AirNow (live) |
Health Recommendation
Air quality is satisfactory, and air pollution poses little or no risk.
It's a great day to be active outside!
5-Day AQI Forecast
Last 90 Days
Current Pollutant Levels
Real-time data from EPA AirNow
Local Air Quality Context
Air quality data for Townsend is sourced from the MARYVILL monitoring area, located approximately 12 miles from city center. This EPA-certified station continuously tracks ground-level ozone, the primary driver of air quality alerts in this area.
Townsend has relatively consistent air quality throughout the year without a strong seasonal peak. Air quality is primarily influenced by local traffic, industrial activity, and regional weather patterns rather than a single seasonal driver.
AQI Trend (10 Years)
Air Quality Days by Year
Townsend Median AQI by Year
Annual EPA air quality data for Townsend — median AQI, day-category breakdown, and primary pollutant per year.
| Year | Median AQI | Good Days | Unhealthy Days | Max AQI | Primary Pollutant |
|---|---|---|---|---|---|
| 2025 | 46 | 156 | 1 | 101 | Ozone |
| 2024 | 47 | 221 | — | 90 | Ozone |
| 2023 | 46 | 224 | 8 | 137 | Ozone |
| 2022 | 45 | 238 | 1 | 115 | PM2.5 |
| 2021 | 44 | 231 | 2 | 107 | PM2.5 |
| 2020 | 42 | 273 | — | 93 | PM2.5 |
| 2019 | 46 | 223 | 2 | 115 | PM2.5 |
| 2018 | 48 | 205 | 1 | 108 | PM2.5 |
| 2017 | 49 | 197 | 1 | 105 | PM2.5 |
| 2016 | 44 | 273 | 6 | 161 | Ozone |
Source: EPA Air Quality System (AQS) annual summaries. "Unhealthy Days" includes Unhealthy for Sensitive Groups, Unhealthy, Very Unhealthy, and Hazardous categories.
2025 Air Quality Summary
Primary Pollutant Days (2025)
Days when each pollutant was the primary driver of AQI. Learn about pollutants →
Frequently Asked Questions About Townsend Air Quality
What is the air quality in Townsend today?
The current AQI in Townsend is 32, rated "Good". Air quality is good — outdoor activity is safe for everyone today. Air quality is satisfactory, and air pollution poses little or no risk.
Is air quality in Townsend getting better or worse?
Air quality in Townsend has been stable. The median AQI has risen 2 points (from 44 in 2016 to 46 in 2025).
What is the most common air pollutant in Townsend?
Ozone is the primary air pollutant in Townsend, responsible for 115 days (51% of monitored days) in 2025. Ground-level ozone forms when sunlight reacts with emissions from vehicles and industry, typically peaking on hot summer afternoons.
How many unhealthy air days does Townsend have per year?
In 2025, Townsend recorded 70% good air quality days (156 days) out of 224 monitored days. There were 1 Unhealthy for Sensitive Groups days and 0 Unhealthy days (AQI above 100). The highest single-day AQI recorded was 101.
What air quality grade does Townsend receive?
Townsend receives an air quality grade of B+, placing it better than 24% of US cities. This is based on a median AQI of 46 in 2025, with 156 good air quality days. The EPA monitors air quality in this area continuously using certified monitoring stations.
Air Quality Grade
Better than 24% of US cities
Nearby Cities
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National Rankings
See how Townsend compares to every other US city by air quality.
Best Air Quality Cities →All city rankingsRecommended Air Purifiers for Townsend
Ozone is Townsend's primary pollutant. Standard HEPA filters don't capture ozone molecules — you need activated carbon or PECO technology to chemically break them down. We highlight those units here.
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