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)
27
Good
Lynden, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.91 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.73 μg/m³
0
55
155
255
425
605+
24.09 ppb
0
55
71
86
201
201+
0.14 ppb
0
36
76
186
605
1005+
2.44 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Lynden, Washington
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AQI 29
Good
4.98μg/m³
PM2.5
17.01μg/m³
PM10
31.06ppb
O3
0.15ppb
SO2
3.84ppb
NO2
0.18ppm
CO
AQI 24
Good
4.26μg/m³
PM2.5
15.97μg/m³
PM10
25.81ppb
O3
0.15ppb
SO2
3.47ppb
NO2
0.17ppm
CO
AQI 24
Good
3.65μg/m³
PM2.5
14.59μg/m³
PM10
25.68ppb
O3
0.16ppb
SO2
4.89ppb
NO2
0.16ppm
CO
AQI 34
Good
2.03μg/m³
PM2.5
8.64μg/m³
PM10
36.79ppb
O3
0.79ppb
SO2
7.18ppb
NO2
0.19ppm
CO
AQI 31
Good
1.13μg/m³
PM2.5
4.77μg/m³
PM10
32.62ppb
O3
0.78ppb
SO2
5.95ppb
NO2
0.18ppm
CO
AQI 32
Good
1.90μg/m³
PM2.5
8.02μg/m³
PM10
34.86ppb
O3
0.88ppb
SO2
6.73ppb
NO2
0.19ppm
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 05:00:00 on 2026-03-06.
The best air quality in Lynden, Washington was recorded at 10:00:00 on 2026-03-05.
The real-time air quality index in Lynden, Washington is 27, 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 4.913 μg/m3.
The current PM10 levels in Lynden, Washington are 18.732 μg/m3.
The current carbon monoxide (CO) level in Lynden, Washington is 0.182 ppm.
The current sulfur dioxide (SO2) levels in Lynden, Washington are 0.138 ppb.
The current ozone (O3) levels at Lynden, Washington is 24.093 ppm.
The current nitrogen dioxide (NO2) levels at Lynden, Washington is 2.438 ppb.
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