Stay updated with real-time air quality in Union City, Tennessee featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
43
Good
Union City, Tennessee
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.26 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.86 μg/m³
0
55
155
255
425
605+
45.68 ppb
0
55
71
86
201
201+
3.23 ppb
0
36
76
186
605
1005+
6.52 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Union City, Tennessee
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AQI 52
Moderate
10.04μg/m³
PM2.5
43.33μg/m³
PM10
52.66ppb
O3
1.67ppb
SO2
1.89ppb
NO2
0.19ppm
CO
AQI 41
Good
5.90μg/m³
PM2.5
27.00μg/m³
PM10
44.01ppb
O3
3.19ppb
SO2
4.79ppb
NO2
0.30ppm
CO
AQI 56
Moderate
12.14μg/m³
PM2.5
54.80μg/m³
PM10
52.83ppb
O3
1.02ppb
SO2
0.52ppb
NO2
0.15ppm
CO
AQI 54
Moderate
9.48μg/m³
PM2.5
42.02μg/m³
PM10
55.85ppb
O3
1.22ppb
SO2
0.69ppb
NO2
0.15ppm
CO
AQI 47
Good
6.50μg/m³
PM2.5
35.52μg/m³
PM10
50.95ppb
O3
2.22ppb
SO2
5.35ppb
NO2
0.28ppm
CO
AQI 41
Good
3.91μg/m³
PM2.5
17.09μg/m³
PM10
44.04ppb
O3
3.32ppb
SO2
5.87ppb
NO2
0.28ppm
CO
The air quality data for Tennessee, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Union City, Tennessee are available every hour.
Union City, Tennessee experienced its worst air quality at 02:00:00, 2026-10-22.
The best air quality in Union City, Tennessee was observed at 08:00:00 on 2026-10-22.
The air quality in Union City, Tennessee right now is Good, with an AQI of 43.
In Union City, Tennessee, O3 is the most frequently found pollutant.
When air quality in Union City, Tennessee is compromised, staying indoors and wearing a mask can reduce health risks.
Union City, Tennessee currently has a PM2.5 concentration of 7.264 μg/m3.
Union City, Tennessee currently has a PM10 concentration of 27.863 μg/m3.
The current carbon monoxide (CO) level in Union City, Tennessee is 0.296 ppm.
The current sulfur dioxide (SO2) concentration in Union City, Tennessee is 3.234 ppb.
Union City, Tennessee currently has an ozone (O3) concentration of 45.682 ppm.
The current level of nitrogen dioxide (NO2) in Union City, Tennessee is 6.524 ppb.
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