Stay updated with real-time air quality in Johnson 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)
24
Good
Johnson City, Tennessee
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.31 μg/m³
0
55
155
255
425
605+
13.88 ppb
0
55
71
86
201
201+
1.43 ppb
0
36
76
186
605
1005+
4.65 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Johnson City, Tennessee
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AQI 32
Good
5.00μg/m³
PM2.5
18.58μg/m³
PM10
35.42ppb
O3
1.27ppb
SO2
5.45ppb
NO2
0.19ppm
CO
AQI 33
Good
6.37μg/m³
PM2.5
28.35μg/m³
PM10
33.76ppb
O3
1.32ppb
SO2
5.41ppb
NO2
0.18ppm
CO
AQI 31
Good
5.17μg/m³
PM2.5
25.62μg/m³
PM10
34.26ppb
O3
1.27ppb
SO2
5.45ppb
NO2
0.24ppm
CO
AQI 31
Good
5.47μg/m³
PM2.5
26.11μg/m³
PM10
34.24ppb
O3
1.27ppb
SO2
5.44ppb
NO2
0.19ppm
CO
AQI 33
Good
5.52μg/m³
PM2.5
20.42μg/m³
PM10
30.05ppb
O3
1.26ppb
SO2
3.26ppb
NO2
0.18ppm
CO
AQI 31
Good
4.82μg/m³
PM2.5
25.49μg/m³
PM10
33.21ppb
O3
1.17ppb
SO2
5.68ppb
NO2
0.24ppm
CO
Air quality measurements for Tennessee, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Johnson City, Tennessee is updated on an hourly basis.
The worst air quality in Johnson City, Tennessee was recorded at 05:00:00 on 2025-07-17.
The best air quality in Johnson City, Tennessee was recorded at 10:00:00 on 2025-07-17.
The real-time air quality index in Johnson City, Tennessee is 30, currently categorized as Good.
The most common pollutant in Johnson City, Tennessee is O3.
If the air quality in Johnson City, Tennessee is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Johnson City, Tennessee at present are 5.46 μg/m3.
The current PM10 levels in Johnson City, Tennessee are 26.144 μg/m3.
The current carbon monoxide (CO) level in Johnson City, Tennessee is 0.185 ppm.
The current sulfur dioxide (SO2) levels in Johnson City, Tennessee are 1.301 ppb.
The current ozone (O3) levels at Johnson City, Tennessee is 32.151 ppm.
The current nitrogen dioxide (NO2) levels at Johnson City, Tennessee is 5.472 ppb.
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