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)
38
Good
Union City, Tennessee
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.96 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.21 μg/m³
0
55
155
255
425
605+
41.36 ppb
0
55
71
86
201
201+
1.32 ppb
0
36
76
186
605
1005+
2.86 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Union City, Tennessee
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AQI 35
Good
6.26μg/m³
PM2.5
27.58μg/m³
PM10
37.88ppb
O3
0.59ppb
SO2
1.00ppb
NO2
0.17ppm
CO
AQI 33
Good
4.10μg/m³
PM2.5
18.03μg/m³
PM10
35.72ppb
O3
1.30ppb
SO2
2.85ppb
NO2
0.21ppm
CO
AQI 34
Good
6.40μg/m³
PM2.5
28.56μg/m³
PM10
37.03ppb
O3
0.36ppb
SO2
0.33ppb
NO2
0.16ppm
CO
AQI 36
Good
5.78μg/m³
PM2.5
25.00μg/m³
PM10
38.94ppb
O3
0.60ppb
SO2
0.55ppb
NO2
0.17ppm
CO
AQI 38
Good
3.74μg/m³
PM2.5
18.85μg/m³
PM10
41.50ppb
O3
1.16ppb
SO2
3.39ppb
NO2
0.20ppm
CO
AQI 40
Good
4.50μg/m³
PM2.5
20.00μg/m³
PM10
43.01ppb
O3
1.22ppb
SO2
2.88ppb
NO2
0.20ppm
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 11:00:00, 2026-07-22.
The best air quality in Union City, Tennessee was observed at 02:00:00 on 2026-07-23.
The air quality in Union City, Tennessee right now is Good, with an AQI of 38.
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 3.959 μg/m3.
Union City, Tennessee currently has a PM10 concentration of 17.209 μg/m3.
The current carbon monoxide (CO) level in Union City, Tennessee is 0.197 ppm.
The current sulfur dioxide (SO2) concentration in Union City, Tennessee is 1.324 ppb.
Union City, Tennessee currently has an ozone (O3) concentration of 41.363 ppm.
The current level of nitrogen dioxide (NO2) in Union City, Tennessee is 2.863 ppb.
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