Stay updated with real-time air quality in La Grande, Oregon 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)
34
Good
La Grande, Oregon
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.48 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.13 μg/m³
0
55
155
255
425
605+
37.34 ppb
0
55
71
86
201
201+
0.36 ppb
0
36
76
186
605
1005+
5.59 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
La Grande, Oregon
La Grande, Oregon
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AQI 33
Good
6.50μg/m³
PM2.5
28.91μg/m³
PM10
33.31ppb
O3
0.04ppb
SO2
0.77ppb
NO2
0.13ppm
CO
AQI 27
Good
3.74μg/m³
PM2.5
16.57μg/m³
PM10
28.60ppb
O3
0.07ppb
SO2
3.50ppb
NO2
0.15ppm
CO
AQI 22
Good
4.38μg/m³
PM2.5
18.78μg/m³
PM10
18.36ppb
O3
0.09ppb
SO2
3.14ppb
NO2
0.15ppm
CO
AQI 54
Moderate
11.02μg/m³
PM2.5
48.80μg/m³
PM10
31.09ppb
O3
0.09ppb
SO2
4.23ppb
NO2
0.15ppm
CO
AQI 31
Good
3.86μg/m³
PM2.5
16.82μg/m³
PM10
33.62ppb
O3
0.09ppb
SO2
4.16ppb
NO2
0.15ppm
CO
AQI 31
Good
3.61μg/m³
PM2.5
15.72μg/m³
PM10
34.30ppb
O3
0.09ppb
SO2
4.02ppb
NO2
0.15ppm
CO
Air quality measurements for Oregon, 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 La Grande, Oregon is updated on an hourly basis.
The worst air quality in La Grande, Oregon was recorded at 12:00:00 on 2026-04-24.
The best air quality in La Grande, Oregon was recorded at 03:00:00 on 2026-04-24.
The real-time air quality index in La Grande, Oregon is 34, currently categorized as Good.
The most common pollutant in La Grande, Oregon is O3.
If the air quality in La Grande, Oregon is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in La Grande, Oregon at present are 2.482 μg/m3.
The current PM10 levels in La Grande, Oregon are 11.132 μg/m3.
The current carbon monoxide (CO) level in La Grande, Oregon is 0.219 ppm.
The current sulfur dioxide (SO2) levels in La Grande, Oregon are 0.362 ppb.
The current ozone (O3) levels at La Grande, Oregon is 37.341 ppm.
The current nitrogen dioxide (NO2) levels at La Grande, Oregon is 5.593 ppb.
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