Stay updated with real-time air quality in Portland, Texas 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)
73
Moderate
Portland, Texas
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
21.39 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
69.30 μg/m³
0
55
155
255
425
605+
16.93 ppb
0
55
71
86
201
201+
0.56 ppb
0
36
76
186
605
1005+
4.97 ppb
0
54
101
361
1250
2050+
0.36 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Portland, Texas
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AQI 64
Moderate
15.91μg/m³
PM2.5
55.28μg/m³
PM10
17.32ppb
O3
0.54ppb
SO2
5.21ppb
NO2
0.34ppm
CO
AQI 73
Moderate
21.05μg/m³
PM2.5
88.82μg/m³
PM10
16.73ppb
O3
0.54ppb
SO2
4.78ppb
NO2
0.34ppm
CO
AQI 60
Moderate
14.19μg/m³
PM2.5
44.22μg/m³
PM10
15.15ppb
O3
0.54ppb
SO2
7.81ppb
NO2
0.34ppm
CO
AQI 67
Moderate
17.68μg/m³
PM2.5
62.91μg/m³
PM10
15.21ppb
O3
0.54ppb
SO2
4.77ppb
NO2
0.34ppm
CO
AQI 60
Moderate
13.75μg/m³
PM2.5
62.21μg/m³
PM10
17.38ppb
O3
0.54ppb
SO2
4.76ppb
NO2
0.30ppm
CO
AQI 58
Moderate
13.20μg/m³
PM2.5
59.95μg/m³
PM10
16.02ppb
O3
0.27ppb
SO2
1.49ppb
NO2
0.10ppm
CO
Air quality measurements for Texas, 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 Portland, Texas is updated on an hourly basis.
The worst air quality in Portland, Texas was recorded at 12:00:00 on 2026-06-07.
The best air quality in Portland, Texas was recorded at 05:00:00 on 2026-06-08.
The real-time air quality index in Portland, Texas is 66, currently categorized as Moderate.
The most common pollutant in Portland, Texas is PM2.5.
If the air quality in Portland, Texas is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Portland, Texas at present are 16.945 μg/m3.
The current PM10 levels in Portland, Texas are 62.854 μg/m3.
The current carbon monoxide (CO) level in Portland, Texas is 0.342 ppm.
The current sulfur dioxide (SO2) levels in Portland, Texas are 0.536 ppb.
The current ozone (O3) levels at Portland, Texas is 17.992 ppm.
The current nitrogen dioxide (NO2) levels at Portland, Texas is 4.781 ppb.
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