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)
33
Good
Johnson City, Tennessee
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.94 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
31.51 μg/m³
0
55
155
255
425
605+
24.16 ppb
0
55
71
86
201
201+
2.90 ppb
0
36
76
186
605
1005+
13.42 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Johnson City, Tennessee
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AQI 33
Good
6.42μg/m³
PM2.5
21.60μg/m³
PM10
32.18ppb
O3
4.42ppb
SO2
7.11ppb
NO2
0.24ppm
CO
AQI 29
Good
4.96μg/m³
PM2.5
26.16μg/m³
PM10
30.84ppb
O3
6.67ppb
SO2
8.82ppb
NO2
0.22ppm
CO
AQI 28
Good
5.22μg/m³
PM2.5
23.39μg/m³
PM10
29.93ppb
O3
4.49ppb
SO2
5.38ppb
NO2
0.28ppm
CO
AQI 33
Good
5.64μg/m³
PM2.5
33.32μg/m³
PM10
30.62ppb
O3
4.43ppb
SO2
5.36ppb
NO2
0.22ppm
CO
AQI 38
Good
6.93μg/m³
PM2.5
22.60μg/m³
PM10
31.99ppb
O3
4.01ppb
SO2
8.84ppb
NO2
0.33ppm
CO
AQI 31
Good
4.38μg/m³
PM2.5
14.29μg/m³
PM10
33.09ppb
O3
2.68ppb
SO2
3.96ppb
NO2
0.28ppm
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 09:00:00 on 2026-01-22.
The best air quality in Johnson City, Tennessee was recorded at 09:00:00 on 2026-01-22.
The real-time air quality index in Johnson City, Tennessee is 33, currently categorized as Good.
The most common pollutant in Johnson City, Tennessee is PM2.5.
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 6.033 μg/m3.
The current PM10 levels in Johnson City, Tennessee are 23.007 μg/m3.
The current carbon monoxide (CO) level in Johnson City, Tennessee is 0.239 ppm.
The current sulfur dioxide (SO2) levels in Johnson City, Tennessee are 5.025 ppb.
The current ozone (O3) levels at Johnson City, Tennessee is 31.284 ppm.
The current nitrogen dioxide (NO2) levels at Johnson City, Tennessee is 8.933 ppb.
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