Stay updated with real-time air quality in Bellingham, Washington 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)
19
Good
Bellingham, Washington
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
2.93 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.01 μg/m³
0
55
155
255
425
605+
21.49 ppb
0
55
71
86
201
201+
0.24 ppb
0
36
76
186
605
1005+
10.69 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Bellingham, Washington
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AQI 33
Good
6.07μg/m³
PM2.5
26.71μg/m³
PM10
21.18ppb
O3
0.28ppb
SO2
11.41ppb
NO2
0.14ppm
CO
AQI 33
Good
6.18μg/m³
PM2.5
27.41μg/m³
PM10
19.93ppb
O3
0.28ppb
SO2
11.93ppb
NO2
0.14ppm
CO
AQI 33
Good
5.57μg/m³
PM2.5
24.03μg/m³
PM10
17.62ppb
O3
0.26ppb
SO2
11.17ppb
NO2
0.14ppm
CO
AQI 52
Moderate
9.55μg/m³
PM2.5
42.33μg/m³
PM10
25.20ppb
O3
0.24ppb
SO2
7.99ppb
NO2
0.12ppm
CO
AQI 26
Good
3.17μg/m³
PM2.5
13.45μg/m³
PM10
28.25ppb
O3
0.54ppb
SO2
7.74ppb
NO2
0.13ppm
CO
AQI 26
Good
3.99μg/m³
PM2.5
17.16μg/m³
PM10
27.66ppb
O3
0.51ppb
SO2
8.00ppb
NO2
0.13ppm
CO
Air quality measurements for Washington, 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
Air quality data for Bellingham, Washington is updated on an hourly basis.
The worst air quality in Bellingham, Washington was recorded at 03:00:00 on 2025-06-06.
The best air quality in Bellingham, Washington was recorded at 08:00:00 on 2025-06-07.
The real-time air quality index in Bellingham, Washington is 19, currently categorized as Good.
The most common pollutant in Bellingham, Washington is O3.
If the air quality in Bellingham, Washington is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Bellingham, Washington at present are 2.932 μg/m3.
The current PM10 levels in Bellingham, Washington are 12.01 μg/m3.
The current carbon monoxide (CO) level in Bellingham, Washington is 0.179 ppm.
The current sulfur dioxide (SO2) levels in Bellingham, Washington are 0.245 ppb.
The current ozone (O3) levels at Bellingham, Washington is 21.49 ppm.
The current nitrogen dioxide (NO2) levels at Bellingham, Washington is 10.69 ppb.
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