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)
66
Moderate
La Grande, Oregon
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
17.28 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
76.89 μg/m³
0
55
155
255
425
605+
15.57 ppb
0
55
71
86
201
201+
2.38 ppb
0
36
76
186
605
1005+
5.43 ppb
0
54
101
361
1250
2050+
0.20 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 64
Moderate
16.18μg/m³
PM2.5
72.92μg/m³
PM10
15.70ppb
O3
5.63ppb
SO2
5.42ppb
NO2
0.20ppm
CO
AQI 38
Good
7.01μg/m³
PM2.5
31.57μg/m³
PM10
12.98ppb
O3
2.32ppb
SO2
6.31ppb
NO2
0.20ppm
CO
AQI 13
Good
1.60μg/m³
PM2.5
7.02μg/m³
PM10
13.68ppb
O3
2.54ppb
SO2
6.21ppb
NO2
0.20ppm
CO
AQI 16
Good
2.52μg/m³
PM2.5
10.10μg/m³
PM10
14.54ppb
O3
2.25ppb
SO2
6.26ppb
NO2
0.20ppm
CO
AQI 15
Good
2.38μg/m³
PM2.5
10.97μg/m³
PM10
15.64ppb
O3
2.32ppb
SO2
5.75ppb
NO2
0.20ppm
CO
AQI 14
Good
2.33μg/m³
PM2.5
10.76μg/m³
PM10
15.47ppb
O3
2.32ppb
SO2
5.74ppb
NO2
0.20ppm
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 06:00:00 on 2025-12-12.
The best air quality in La Grande, Oregon was recorded at 11:00:00 on 2025-12-11.
The real-time air quality index in La Grande, Oregon is 66, currently categorized as Moderate.
The most common pollutant in La Grande, Oregon is PM2.5.
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 17.276 μg/m3.
The current PM10 levels in La Grande, Oregon are 76.89 μg/m3.
The current carbon monoxide (CO) level in La Grande, Oregon is 0.199 ppm.
The current sulfur dioxide (SO2) levels in La Grande, Oregon are 2.379 ppb.
The current ozone (O3) levels at La Grande, Oregon is 15.569 ppm.
The current nitrogen dioxide (NO2) levels at La Grande, Oregon is 5.433 ppb.
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