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)
26
Good
Lynden, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.72 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.18 μg/m³
0
55
155
255
425
605+
28.43 ppb
0
55
71
86
201
201+
0.23 ppb
0
36
76
186
605
1005+
4.48 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Lynden, Washington
Lynden, Washington
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AQI 22
Good
3.84μg/m³
PM2.5
14.36μg/m³
PM10
23.64ppb
O3
0.26ppb
SO2
7.37ppb
NO2
0.17ppm
CO
AQI 27
Good
4.60μg/m³
PM2.5
19.89μg/m³
PM10
20.19ppb
O3
0.23ppb
SO2
6.59ppb
NO2
0.17ppm
CO
AQI 27
Good
4.66μg/m³
PM2.5
16.01μg/m³
PM10
16.10ppb
O3
0.27ppb
SO2
7.36ppb
NO2
0.18ppm
CO
AQI 44
Good
7.58μg/m³
PM2.5
33.25μg/m³
PM10
22.77ppb
O3
0.36ppb
SO2
6.93ppb
NO2
0.18ppm
CO
AQI 22
Good
3.54μg/m³
PM2.5
14.91μg/m³
PM10
20.11ppb
O3
0.24ppb
SO2
8.80ppb
NO2
0.17ppm
CO
AQI 19
Good
3.02μg/m³
PM2.5
12.49μg/m³
PM10
19.85ppb
O3
0.24ppb
SO2
8.77ppb
NO2
0.17ppm
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 11:00:00 on 2025-10-24.
The best air quality in Lynden, Washington was recorded at 03:00:00 on 2025-10-24.
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 4.107 μg/m3.
The current PM10 levels in Lynden, Washington are 13.388 μg/m3.
The current carbon monoxide (CO) level in Lynden, Washington is 0.158 ppm.
The current sulfur dioxide (SO2) levels in Lynden, Washington are 0.236 ppb.
The current ozone (O3) levels at Lynden, Washington is 19.574 ppm.
The current nitrogen dioxide (NO2) levels at Lynden, Washington is 7.65 ppb.
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