Stay updated with real-time air quality in Portland, 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)
17
Good
Portland, Tennessee
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.90 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.44 μg/m³
0
55
155
255
425
605+
18.38 ppb
0
55
71
86
201
201+
0.77 ppb
0
36
76
186
605
1005+
6.84 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Portland, Tennessee
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AQI 15
Good
1.75μg/m³
PM2.5
11.35μg/m³
PM10
16.02ppb
O3
0.77ppb
SO2
6.83ppb
NO2
0.26ppm
CO
AQI 20
Good
1.71μg/m³
PM2.5
6.79μg/m³
PM10
21.63ppb
O3
0.77ppb
SO2
6.80ppb
NO2
0.26ppm
CO
AQI 20
Good
1.92μg/m³
PM2.5
13.34μg/m³
PM10
21.78ppb
O3
0.77ppb
SO2
6.45ppb
NO2
0.27ppm
CO
AQI 22
Good
1.72μg/m³
PM2.5
7.59μg/m³
PM10
23.54ppb
O3
0.77ppb
SO2
6.31ppb
NO2
0.27ppm
CO
AQI 20
Good
3.12μg/m³
PM2.5
14.65μg/m³
PM10
22.27ppb
O3
0.77ppb
SO2
6.13ppb
NO2
0.26ppm
CO
AQI 20
Good
1.79μg/m³
PM2.5
11.12μg/m³
PM10
21.87ppb
O3
0.79ppb
SO2
6.37ppb
NO2
0.27ppm
CO
Air quality data and pollutant measurements for Tennessee, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Portland, Tennessee is updated every hour.
The worst air quality in Portland, Tennessee in the last 24 hours was observed at 07:00:00 on 2026-06-07.
In the last 24 hrs, the best air quality in Portland, Tennessee was observed at 08:00:00 on 2026-06-08.
The current air quality in Portland, Tennessee is 17, categorized as Good based on real-time data.
The most common pollutant in Portland, Tennessee is O3.
If the air quality in Portland, Tennessee is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Portland, Tennessee is 1.9 μg/m3.
The current PM10 concentration at Portland, Tennessee is 13.436 μg/m3.
The current carbon monoxide (CO) concentration at Portland, Tennessee is 0.228 ppm.
The current sulfur dioxide (SO2) concentration at Portland, Tennessee is 0.77 ppb.
The current ozone (O3) concentration at Portland, Tennessee is 18.384 ppm.
The current nitrogen dioxide (NO2) concentration at Portland, Tennessee is 6.836 ppb.
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