Stay updated with real-time air quality in Hermiston, 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)
35
Good
Hermiston, Oregon
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.17 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.06 μg/m³
0
55
155
255
425
605+
37.94 ppb
0
55
71
86
201
201+
3.76 ppb
0
36
76
186
605
1005+
3.90 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Hermiston, Oregon
Hermiston, Oregon
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AQI 32
Good
5.06μg/m³
PM2.5
33.52μg/m³
PM10
34.52ppb
O3
3.85ppb
SO2
3.78ppb
NO2
0.16ppm
CO
AQI 33
Good
3.73μg/m³
PM2.5
16.23μg/m³
PM10
35.54ppb
O3
3.74ppb
SO2
3.85ppb
NO2
0.16ppm
CO
AQI 32
Good
5.10μg/m³
PM2.5
33.26μg/m³
PM10
34.58ppb
O3
3.85ppb
SO2
3.77ppb
NO2
0.16ppm
CO
AQI 32
Good
4.63μg/m³
PM2.5
35.40μg/m³
PM10
33.60ppb
O3
3.81ppb
SO2
3.76ppb
NO2
0.16ppm
CO
AQI 33
Good
5.41μg/m³
PM2.5
24.09μg/m³
PM10
36.27ppb
O3
3.79ppb
SO2
3.74ppb
NO2
0.16ppm
CO
AQI 44
Good
7.94μg/m³
PM2.5
35.42μg/m³
PM10
37.33ppb
O3
3.09ppb
SO2
4.30ppb
NO2
0.17ppm
CO
Air quality data and pollutant measurements for Oregon, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Hermiston, Oregon is updated every hour.
The worst air quality in Hermiston, Oregon in the last 24 hours was observed at 02:00:00 on 2025-06-06.
In the last 24 hrs, the best air quality in Hermiston, Oregon was observed at 08:00:00 on 2025-06-06.
The current air quality in Hermiston, Oregon is 35, categorized as Good based on real-time data.
The most common pollutant in Hermiston, Oregon is O3.
If the air quality in Hermiston, Oregon is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Hermiston, Oregon is 6.173 μg/m3.
The current PM10 concentration at Hermiston, Oregon is 28.056 μg/m3.
The current carbon monoxide (CO) concentration at Hermiston, Oregon is 0.162 ppm.
The current sulfur dioxide (SO2) concentration at Hermiston, Oregon is 3.758 ppb.
The current ozone (O3) concentration at Hermiston, Oregon is 37.935 ppm.
The current nitrogen dioxide (NO2) concentration at Hermiston, Oregon is 3.903 ppb.
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