Stay updated with real-time air quality in Lynden, 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)
44
Good
Lynden, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.06 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.89 μg/m³
0
55
155
255
425
605+
23.93 ppb
0
55
71
86
201
201+
0.23 ppb
0
36
76
186
605
1005+
3.81 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Lynden, Washington
Lynden, Washington
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AQI 33
Good
5.86μg/m³
PM2.5
22.86μg/m³
PM10
21.10ppb
O3
0.43ppb
SO2
8.78ppb
NO2
0.19ppm
CO
AQI 27
Good
5.20μg/m³
PM2.5
22.42μg/m³
PM10
16.27ppb
O3
0.47ppb
SO2
6.69ppb
NO2
0.19ppm
CO
AQI 33
Good
6.34μg/m³
PM2.5
26.70μg/m³
PM10
15.86ppb
O3
0.47ppb
SO2
10.22ppb
NO2
0.18ppm
CO
AQI 19
Good
2.08μg/m³
PM2.5
9.06μg/m³
PM10
19.55ppb
O3
0.47ppb
SO2
7.76ppb
NO2
0.16ppm
CO
AQI 15
Good
1.04μg/m³
PM2.5
4.68μg/m³
PM10
16.42ppb
O3
0.46ppb
SO2
7.27ppb
NO2
0.17ppm
CO
AQI 15
Good
0.70μg/m³
PM2.5
3.24μg/m³
PM10
16.14ppb
O3
0.47ppb
SO2
7.23ppb
NO2
0.16ppm
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 Lynden, Washington is updated on an hourly basis.
The worst air quality in Lynden, Washington was recorded at 06:00:00 on 2026-04-21.
The best air quality in Lynden, Washington was recorded at 09:00:00 on 2026-04-22.
The real-time air quality index in Lynden, Washington is 38, currently categorized as Good.
The most common pollutant in Lynden, Washington is PM2.5.
If the air quality in Lynden, Washington is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Lynden, Washington at present are 6.98 μg/m3.
The current PM10 levels in Lynden, Washington are 24.624 μg/m3.
The current carbon monoxide (CO) level in Lynden, Washington is 0.172 ppm.
The current sulfur dioxide (SO2) levels in Lynden, Washington are 0.296 ppb.
The current ozone (O3) levels at Lynden, Washington is 22.07 ppm.
The current nitrogen dioxide (NO2) levels at Lynden, Washington is 6.616 ppb.
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