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)
28
Good
La Grande, Oregon
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.20 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.00 μg/m³
0
55
155
255
425
605+
29.82 ppb
0
55
71
86
201
201+
0.18 ppb
0
36
76
186
605
1005+
6.00 ppb
0
54
101
361
1250
2050+
0.14 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 34
Good
3.60μg/m³
PM2.5
16.00μg/m³
PM10
36.78ppb
O3
0.16ppb
SO2
3.85ppb
NO2
0.12ppm
CO
AQI 35
Good
1.91μg/m³
PM2.5
8.01μg/m³
PM10
38.13ppb
O3
0.21ppb
SO2
3.80ppb
NO2
0.12ppm
CO
AQI 24
Good
2.20μg/m³
PM2.5
9.00μg/m³
PM10
26.03ppb
O3
0.21ppb
SO2
3.66ppb
NO2
0.12ppm
CO
AQI 34
Good
2.79μg/m³
PM2.5
11.93μg/m³
PM10
37.05ppb
O3
0.21ppb
SO2
3.82ppb
NO2
0.12ppm
CO
AQI 29
Good
2.13μg/m³
PM2.5
5.55μg/m³
PM10
31.18ppb
O3
0.21ppb
SO2
3.73ppb
NO2
0.12ppm
CO
AQI 29
Good
2.07μg/m³
PM2.5
5.48μg/m³
PM10
30.94ppb
O3
0.21ppb
SO2
3.73ppb
NO2
0.12ppm
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 2025-10-25.
The best air quality in La Grande, Oregon was recorded at 04:00:00 on 2025-10-25.
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 4.098 μg/m3.
The current PM10 levels in La Grande, Oregon are 17.991 μg/m3.
The current carbon monoxide (CO) level in La Grande, Oregon is 0.117 ppm.
The current sulfur dioxide (SO2) levels in La Grande, Oregon are 0.179 ppb.
The current ozone (O3) levels at La Grande, Oregon is 36.822 ppm.
The current nitrogen dioxide (NO2) levels at La Grande, Oregon is 3.799 ppb.
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