Real-time air quality index in Monmouth, Oregon today
Stay updated with real-time air quality in Monmouth, 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)
42
Good
Monmouth, Oregon
Last updated: ... (Local time)
Common air pollutants in Monmouth, Oregon
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
2.03 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
8.88 μg/m³
0
55
155
255
425
605+
Ozone (O3)
45.23 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.42 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
4.39 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Monmouth, Oregon
Monmouth, Oregon
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Monmouth, Oregon air quality map: Real-time AQI near you
Air quality in nearby cities
Independence, Oregon
AQI 56
Moderate
11.76μg/m³
PM2.5
58.77μg/m³
PM10
14.66ppb
O3
0.38ppb
SO2
5.86ppb
NO2
0.15ppm
CO
Dallas, Oregon
AQI 52
Moderate
10.22μg/m³
PM2.5
45.10μg/m³
PM10
17.30ppb
O3
0.38ppb
SO2
6.39ppb
NO2
0.15ppm
CO
Salem, Oregon
AQI 60
Moderate
13.97μg/m³
PM2.5
62.92μg/m³
PM10
20.79ppb
O3
0.38ppb
SO2
5.58ppb
NO2
0.15ppm
CO
Four Corners, Oregon
AQI 60
Moderate
13.85μg/m³
PM2.5
62.39μg/m³
PM10
20.70ppb
O3
0.38ppb
SO2
5.58ppb
NO2
0.15ppm
CO
Keizer, Oregon
AQI 58
Moderate
13.06μg/m³
PM2.5
58.59μg/m³
PM10
20.22ppb
O3
0.38ppb
SO2
5.63ppb
NO2
0.15ppm
CO
Hayesville, Oregon
AQI 56
Moderate
12.37μg/m³
PM2.5
55.27μg/m³
PM10
20.02ppb
O3
0.38ppb
SO2
5.66ppb
NO2
0.15ppm
CO
How accurate is Oregon, USA air quality data?
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
Frequently asked questions
How frequently is the air quality data for Monmouth, Oregon updated?
Air quality data for Monmouth, Oregon is updated on an hourly basis.
When did Monmouth, Oregon experience the worst air quality in the last 24 hours?
The worst air quality in Monmouth, Oregon was recorded at 10:00:00 on 2026-08-07.
When did Monmouth, Oregon have its best air quality in the last 24 hours?
The best air quality in Monmouth, Oregon was recorded at 03:00:00 on 2026-08-08.
What is the real-time air quality index for Monmouth, Oregon?
The real-time air quality index in Monmouth, Oregon is 54, currently categorized as Moderate.
Which pollutant is found most often in Monmouth, Oregon?
The most common pollutant in Monmouth, Oregon is PM2.5.
What can I do if the air quality in Monmouth, Oregon is poor?
If the air quality in Monmouth, Oregon is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Monmouth, Oregon?
The measured PM2.5 levels in Monmouth, Oregon at present are 10.597 μg/m3.
What are the current PM10 levels at Monmouth, Oregon?
The current PM10 levels in Monmouth, Oregon are 46.906 μg/m3.
What are the current carbon monoxide (CO) levels at Monmouth, Oregon?
The current carbon monoxide (CO) level in Monmouth, Oregon is 0.15 ppm.
What are the current sulfur dioxide (SO2) levels at Monmouth, Oregon?
The current sulfur dioxide (SO2) levels in Monmouth, Oregon are 0.381 ppb.
What are the current ozone (O3) levels at Monmouth, Oregon?
The current ozone (O3) levels at Monmouth, Oregon is 17.796 ppm.
What are the current nitrogen dioxide (NO2) levels at Monmouth, Oregon?
The current nitrogen dioxide (NO2) levels at Monmouth, Oregon is 6.203 ppb.
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