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)
22
Good
Lynden, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.52 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.13 μg/m³
0
55
155
255
425
605+
9.47 ppb
0
55
71
86
201
201+
0.10 ppb
0
36
76
186
605
1005+
3.14 ppb
0
54
101
361
1250
2050+
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Lynden, Washington
Lynden, Washington
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AQI 16
Good
2.74μg/m³
PM2.5
10.68μg/m³
PM10
7.70ppb
O3
0.13ppb
SO2
4.34ppb
NO2
0.11ppm
CO
AQI 27
Good
4.74μg/m³
PM2.5
20.26μg/m³
PM10
11.82ppb
O3
0.20ppb
SO2
4.74ppb
NO2
0.13ppm
CO
AQI 16
Good
3.24μg/m³
PM2.5
12.31μg/m³
PM10
8.26ppb
O3
0.24ppb
SO2
4.19ppb
NO2
0.12ppm
CO
AQI 11
Good
1.75μg/m³
PM2.5
7.13μg/m³
PM10
10.85ppb
O3
0.28ppb
SO2
4.19ppb
NO2
0.10ppm
CO
AQI 11
Good
2.42μg/m³
PM2.5
9.99μg/m³
PM10
9.41ppb
O3
0.26ppb
SO2
5.42ppb
NO2
0.12ppm
CO
AQI 11
Good
2.22μg/m³
PM2.5
9.05μg/m³
PM10
8.96ppb
O3
0.26ppb
SO2
5.57ppb
NO2
0.12ppm
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 03:00:00 on 2026-07-27.
The best air quality in Lynden, Washington was recorded at 01:00:00 on 2026-07-27.
The real-time air quality index in Lynden, Washington is 22, 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 3.524 μg/m3.
The current PM10 levels in Lynden, Washington are 12.128 μg/m3.
The current carbon monoxide (CO) level in Lynden, Washington is 0.1 ppm.
The current sulfur dioxide (SO2) levels in Lynden, Washington are 0.1 ppb.
The current ozone (O3) levels at Lynden, Washington is 9.47 ppm.
The current nitrogen dioxide (NO2) levels at Lynden, Washington is 3.14 ppb.
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