Current air quality index in Gresham, Oregon today
Stay updated with real-time air quality in Gresham, 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)
33
Good
Gresham, Oregon
Last updated: ... (Local time)
Common air pollutants in Gresham, Oregon
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
1.98 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
7.61 μg/m³
0
55
155
255
425
605+
Ozone (O3)
35.66 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.23 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
6.47 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Gresham, Oregon
Gresham, Oregon
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Air quality in nearby cities
Troutdale, Oregon
AQI 33
Good
2.10μg/m³
PM2.5
11.91μg/m³
PM10
35.79ppb
O3
0.23ppb
SO2
6.32ppb
NO2
0.10ppm
CO
Happy Valley, Oregon
AQI 31
Good
2.03μg/m³
PM2.5
8.92μg/m³
PM10
33.56ppb
O3
0.23ppb
SO2
6.42ppb
NO2
0.10ppm
CO
Camas, Washington
AQI 31
Good
1.49μg/m³
PM2.5
5.96μg/m³
PM10
34.45ppb
O3
0.23ppb
SO2
6.15ppb
NO2
0.10ppm
CO
Damascus, Oregon
AQI 31
Good
1.33μg/m³
PM2.5
6.51μg/m³
PM10
34.15ppb
O3
0.23ppb
SO2
6.27ppb
NO2
0.10ppm
CO
Washougal, Washington
AQI 32
Good
2.09μg/m³
PM2.5
6.90μg/m³
PM10
35.40ppb
O3
0.23ppb
SO2
6.10ppb
NO2
0.10ppm
CO
Oatfield, Oregon
AQI 31
Good
1.73μg/m³
PM2.5
6.74μg/m³
PM10
32.93ppb
O3
0.23ppb
SO2
6.70ppb
NO2
0.10ppm
CO
How accurate is Oregon, USA air quality data?
The air quality data for Oregon, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Frequently asked questions
How frequently does the air quality data for Gresham, Oregon get updated?
Air quality updates for Gresham, Oregon are available every hour.
What time in the past 24 hours saw the poorest air quality in Gresham, Oregon?
Gresham, Oregon experienced its worst air quality at 12:00:00, 2025-12-09.
When was air quality in Gresham, Oregon the best over the past 24 hours?
The best air quality in Gresham, Oregon was observed at 02:00:00 on 2025-12-08.
What is the air quality in Gresham, Oregon right now?
The air quality in Gresham, Oregon right now is Good, with an AQI of 33.
What pollutant is most frequently found in Gresham, Oregon?
In Gresham, Oregon, O3 is the most frequently found pollutant.
What can I do if the air quality in Gresham, Oregon is poor?
When air quality in Gresham, Oregon is compromised, staying indoors and wearing a mask can reduce health risks.
What is the PM2.5 concentration in Gresham, Oregon right now?
Gresham, Oregon currently has a PM2.5 concentration of 1.977 μg/m3.
What is the current level of PM10 in Gresham, Oregon?
Gresham, Oregon currently has a PM10 concentration of 7.608 μg/m3.
What is the current level of carbon monoxide (CO) in Gresham, Oregon?
The current carbon monoxide (CO) level in Gresham, Oregon is 0.1 ppm.
What is the current level of sulfur dioxide (SO2) in Gresham, Oregon?
The current sulfur dioxide (SO2) concentration in Gresham, Oregon is 0.235 ppb.
What is the current level of ozone (O3) in Gresham, Oregon?
Gresham, Oregon currently has an ozone (O3) concentration of 35.661 ppm.
What is the current level of nitrogen dioxide (NO2) in Gresham, Oregon?
The current level of nitrogen dioxide (NO2) in Gresham, Oregon is 6.475 ppb.
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