Stay updated with real-time air quality in Hillsboro, 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)
27
Good
Hillsboro, Oregon
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.77 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.17 μg/m³
0
55
155
255
425
605+
17.42 ppb
0
55
71
86
201
201+
0.41 ppb
0
36
76
186
605
1005+
5.99 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Hillsboro, Oregon
Hillsboro, Oregon
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AQI 33
Good
5.73μg/m³
PM2.5
25.40μg/m³
PM10
15.65ppb
O3
0.41ppb
SO2
5.52ppb
NO2
0.24ppm
CO
AQI 38
Good
6.87μg/m³
PM2.5
30.43μg/m³
PM10
14.14ppb
O3
0.41ppb
SO2
4.99ppb
NO2
0.23ppm
CO
AQI 22
Good
4.40μg/m³
PM2.5
19.52μg/m³
PM10
13.10ppb
O3
0.41ppb
SO2
5.48ppb
NO2
0.25ppm
CO
AQI 22
Good
4.21μg/m³
PM2.5
18.68μg/m³
PM10
13.41ppb
O3
0.41ppb
SO2
5.53ppb
NO2
0.25ppm
CO
AQI 22
Good
4.45μg/m³
PM2.5
19.79μg/m³
PM10
12.88ppb
O3
0.41ppb
SO2
5.37ppb
NO2
0.26ppm
CO
AQI 22
Good
3.98μg/m³
PM2.5
17.68μg/m³
PM10
12.24ppb
O3
0.41ppb
SO2
5.26ppb
NO2
0.24ppm
CO
Air quality and pollutant data for Oregon, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Hillsboro, Oregon is updated every hour for accuracy.
In the past 24 hours, the air quality in Hillsboro, Oregon was at its worst at 03:00:00 on 2026-09-07.
In the last 24 hours, the best air quality in Hillsboro, Oregon was observed at 04:00:00 on 2026-09-06.
As of now, the AQI in Hillsboro, Oregon is 27, indicating Good conditions.
Hillsboro, Oregon air has the highest levels of PM2.5.
Poor air quality in Hillsboro, Oregon means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Hillsboro, Oregon are currently 4.768 μg/m3.
The PM10 concentration in Hillsboro, Oregon is 21.174 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Hillsboro, Oregon is 0.238 ppm.
Currently, Hillsboro, Oregon has a sulfur dioxide (SO2) concentration of 0.408 ppb.
The current ozone (O3) level in Hillsboro, Oregon at the moment is 17.416 ppm.
Nitrogen dioxide (NO2) level in Hillsboro, Oregon at the moment is 5.994 ppb.
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