Stay updated with real-time air quality in Lake Stevens, 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)
56
Moderate
Lake Stevens, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
12.02 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
33.06 μg/m³
0
55
155
255
425
605+
6.89 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
8.95 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Lake Stevens, Washington
Lake Stevens, Washington
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AQI 62
Moderate
14.56μg/m³
PM2.5
64.33μg/m³
PM10
7.43ppb
O3
0.36ppb
SO2
12.20ppb
NO2
0.36ppm
CO
AQI 58
Moderate
13.50μg/m³
PM2.5
52.15μg/m³
PM10
6.43ppb
O3
0.38ppb
SO2
12.06ppb
NO2
0.36ppm
CO
AQI 54
Moderate
10.69μg/m³
PM2.5
33.22μg/m³
PM10
4.35ppb
O3
0.39ppb
SO2
10.24ppb
NO2
0.37ppm
CO
AQI 54
Moderate
11.25μg/m³
PM2.5
30.27μg/m³
PM10
4.98ppb
O3
0.41ppb
SO2
11.76ppb
NO2
0.37ppm
CO
AQI 56
Moderate
11.75μg/m³
PM2.5
33.20μg/m³
PM10
2.65ppb
O3
0.40ppb
SO2
12.52ppb
NO2
0.37ppm
CO
AQI 54
Moderate
10.99μg/m³
PM2.5
27.43μg/m³
PM10
7.32ppb
O3
0.36ppb
SO2
11.87ppb
NO2
0.36ppm
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 Lake Stevens, Washington is updated on an hourly basis.
The worst air quality in Lake Stevens, Washington was recorded at 03:00:00 on 2026-10-08.
The best air quality in Lake Stevens, Washington was recorded at 07:00:00 on 2026-10-07.
The real-time air quality index in Lake Stevens, Washington is 54, currently categorized as Moderate.
The most common pollutant in Lake Stevens, Washington is PM2.5.
If the air quality in Lake Stevens, Washington is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Lake Stevens, Washington at present are 10.573 μg/m3.
The current PM10 levels in Lake Stevens, Washington are 33.617 μg/m3.
The current carbon monoxide (CO) level in Lake Stevens, Washington is 0.357 ppm.
The current sulfur dioxide (SO2) levels in Lake Stevens, Washington are 0.358 ppb.
The current ozone (O3) levels at Lake Stevens, Washington is 11.782 ppm.
The current nitrogen dioxide (NO2) levels at Lake Stevens, Washington is 10.67 ppb.
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