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)
32
Good
Portland, Texas
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
5.30 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
35.29 μg/m³
0
55
155
255
425
605+
26.04 ppb
0
55
71
86
201
201+
0.96 ppb
0
36
76
186
605
1005+
2.44 ppb
0
54
101
361
1250
2050+
0.37 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Portland, Texas
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AQI 56
Moderate
11.95μg/m³
PM2.5
50.26μg/m³
PM10
17.49ppb
O3
0.54ppb
SO2
3.38ppb
NO2
0.28ppm
CO
AQI 60
Moderate
14.07μg/m³
PM2.5
56.18μg/m³
PM10
13.62ppb
O3
0.54ppb
SO2
3.42ppb
NO2
0.28ppm
CO
AQI 54
Moderate
11.17μg/m³
PM2.5
42.81μg/m³
PM10
18.72ppb
O3
0.54ppb
SO2
3.13ppb
NO2
0.28ppm
CO
AQI 56
Moderate
12.14μg/m³
PM2.5
47.65μg/m³
PM10
11.45ppb
O3
0.54ppb
SO2
3.43ppb
NO2
0.28ppm
CO
AQI 56
Moderate
11.51μg/m³
PM2.5
47.40μg/m³
PM10
12.84ppb
O3
0.54ppb
SO2
3.41ppb
NO2
0.28ppm
CO
AQI 49
Good
9.40μg/m³
PM2.5
42.00μg/m³
PM10
11.32ppb
O3
0.22ppb
SO2
2.78ppb
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 02:00:00 on 2025-07-29.
The best air quality in Portland, Texas was recorded at 03:00:00 on 2025-07-30.
The real-time air quality index in Portland, Texas is 58, 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 13.163 μg/m3.
The current PM10 levels in Portland, Texas are 64.586 μg/m3.
The current carbon monoxide (CO) level in Portland, Texas is 0.284 ppm.
The current sulfur dioxide (SO2) levels in Portland, Texas are 0.537 ppb.
The current ozone (O3) levels at Portland, Texas is 14.216 ppm.
The current nitrogen dioxide (NO2) levels at Portland, Texas is 3.426 ppb.
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