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
2.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.59 μg/m³
0
55
155
255
425
605+
29.18 ppb
0
55
71
86
201
201+
0.14 ppb
0
36
76
186
605
1005+
8.63 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Hillsboro, Oregon
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AQI 26
Good
2.61μg/m³
PM2.5
11.01μg/m³
PM10
27.89ppb
O3
0.14ppb
SO2
7.76ppb
NO2
0.16ppm
CO
AQI 26
Good
2.60μg/m³
PM2.5
10.99μg/m³
PM10
28.03ppb
O3
0.14ppb
SO2
7.62ppb
NO2
0.16ppm
CO
AQI 24
Good
2.96μg/m³
PM2.5
12.09μg/m³
PM10
25.51ppb
O3
0.14ppb
SO2
8.26ppb
NO2
0.17ppm
CO
AQI 25
Good
2.77μg/m³
PM2.5
11.65μg/m³
PM10
26.70ppb
O3
0.14ppb
SO2
8.13ppb
NO2
0.16ppm
CO
AQI 23
Good
2.99μg/m³
PM2.5
12.09μg/m³
PM10
25.20ppb
O3
0.14ppb
SO2
8.25ppb
NO2
0.17ppm
CO
AQI 26
Good
2.61μg/m³
PM2.5
11.11μg/m³
PM10
27.66ppb
O3
0.14ppb
SO2
7.99ppb
NO2
0.16ppm
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 04:00:00 on 2026-03-09.
In the last 24 hours, the best air quality in Hillsboro, Oregon was observed at 06:00:00 on 2026-03-09.
As of now, the AQI in Hillsboro, Oregon is 27, indicating Good conditions.
Hillsboro, Oregon air has the highest levels of O3.
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 2.888 μg/m3.
The PM10 concentration in Hillsboro, Oregon is 10.59 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Hillsboro, Oregon is 0.162 ppm.
Currently, Hillsboro, Oregon has a sulfur dioxide (SO2) concentration of 0.14 ppb.
The current ozone (O3) level in Hillsboro, Oregon at the moment is 29.176 ppm.
Nitrogen dioxide (NO2) level in Hillsboro, Oregon at the moment is 8.634 ppb.
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