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)
38
Good
La Grande, Oregon
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+
23.00 μg/m³
0
55
155
255
425
605+
40.86 ppb
0
55
71
86
201
201+
0.92 ppb
0
36
76
186
605
1005+
2.59 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
La Grande, Oregon
La Grande, Oregon
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AQI 38
Good
7.00μg/m³
PM2.5
31.02μg/m³
PM10
37.41ppb
O3
0.54ppb
SO2
4.41ppb
NO2
0.26ppm
CO
AQI 36
Good
3.31μg/m³
PM2.5
14.79μg/m³
PM10
39.28ppb
O3
0.61ppb
SO2
4.71ppb
NO2
0.26ppm
CO
AQI 37
Good
4.19μg/m³
PM2.5
18.98μg/m³
PM10
39.83ppb
O3
0.69ppb
SO2
3.43ppb
NO2
0.26ppm
CO
AQI 34
Good
3.88μg/m³
PM2.5
16.88μg/m³
PM10
37.05ppb
O3
0.61ppb
SO2
4.80ppb
NO2
0.26ppm
CO
AQI 37
Good
3.45μg/m³
PM2.5
11.58μg/m³
PM10
39.56ppb
O3
0.66ppb
SO2
4.67ppb
NO2
0.26ppm
CO
AQI 37
Good
3.44μg/m³
PM2.5
11.02μg/m³
PM10
39.57ppb
O3
0.66ppb
SO2
4.65ppb
NO2
0.26ppm
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 05:00:00 on 2026-09-04.
The best air quality in La Grande, Oregon was recorded at 01:00:00 on 2026-09-04.
The real-time air quality index in La Grande, Oregon is 38, 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 5.299 μg/m3.
The current PM10 levels in La Grande, Oregon are 22.995 μg/m3.
The current carbon monoxide (CO) level in La Grande, Oregon is 0.24 ppm.
The current sulfur dioxide (SO2) levels in La Grande, Oregon are 0.916 ppb.
The current ozone (O3) levels at La Grande, Oregon is 40.856 ppm.
The current nitrogen dioxide (NO2) levels at La Grande, Oregon is 2.592 ppb.
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