Knoxville Air Quality Index (AQI) | Air Pollution
Real-time PM2.5, PM10 air pollution level in Knoxville
Last Updated: 2026-09-25 05:31 (Local Time)
15 °C
Clear
Currently, Knoxville ranks 373rd among the cities with the highest AQI levels in the world.
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Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.
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Most Polluted Cities 2026
United States
Analyze the real-time most air polluted cities in the country.
Standard Value
1.
Mecca, California
Moderate
1xbelow Standard
2.
Athens, Tennessee
Moderate
2xabove Standard
3.
Jackson, Tennessee
Moderate
2xabove Standard
4.
Chiriaco Summit, California
Moderate
1xbelow Standard
5.
Loudon, Tennessee
Moderate
1xabove Standard
6.
Corcoran, California
Moderate
1xbelow Standard
7.
Sandersville, Georgia
Moderate
1xabove Standard
8.
Salton City, California
Moderate
1xbelow Standard
9.
Mcdonough, Georgia
Moderate
1xabove Standard
10.
Calipatria, California
Moderate
1xbelow Standard
Last Updated: 25 Sept 2026, 09:38 AM
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Frequently Asked Questions About Air Quality
1. What is the current AQI (US) level in Knoxville?
1. What is the current AQI (US) level in Knoxville?
The current real-time AQI (US) level in Knoxville is 68 (Moderate). This was last updated 2026-09-25 05:31 (Local Time).
2. When was the best AQI (US) level in Knoxville in the last 24 hours?
2. When was the best AQI (US) level in Knoxville in the last 24 hours?
The best AQI (US) level was 19 (Good) at 11:31 PM, Sep 24, 2026 (Local Time) during the last 24 hours.
3. When was the worst AQI (US) level in Knoxville in the last 24 hours?
3. When was the worst AQI (US) level in Knoxville in the last 24 hours?
The worst AQI (US) level was 90 (Moderate) at 8:01 AM, Sep 24, 2026 (Local Time) during the last 24 hours.
4. What is the current trend of AQI (US) levels in Knoxville during last 24 hours?
4. What is the current trend of AQI (US) levels in Knoxville during last 24 hours?
The AQI (US) levels in Knoxville have been fluctuating throughout the last 24 hours. The levels have increased by highest 90 at 8:01 AM, Sep 24, 2026 (Local Time), lowest 19 at 11:31 PM, Sep 24, 2026 (Local Time).
5. What actions are recommended as per the current AQI (US) level in Knoxville?
5. What actions are recommended as per the current AQI (US) level in Knoxville?
Current AQI (US) levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.
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