Stay updated with real-time air quality in Mill Creek, 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
Mill Creek, Washington
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.95 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.99 μg/m³
0
55
155
255
425
605+
22.30 ppb
0
55
71
86
201
201+
0.51 ppb
0
36
76
186
605
1005+
8.12 ppb
0
54
101
361
1250
2050+
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Mill Creek, Washington
Mill Creek, Washington
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AQI 33
Good
5.87μg/m³
PM2.5
24.59μg/m³
PM10
21.88ppb
O3
0.52ppb
SO2
12.37ppb
NO2
0.10ppm
CO
AQI 33
Good
5.66μg/m³
PM2.5
23.90μg/m³
PM10
21.77ppb
O3
0.52ppb
SO2
12.01ppb
NO2
0.10ppm
CO
AQI 27
Good
5.44μg/m³
PM2.5
18.23μg/m³
PM10
22.54ppb
O3
0.52ppb
SO2
9.00ppb
NO2
0.10ppm
CO
AQI 27
Good
4.72μg/m³
PM2.5
22.66μg/m³
PM10
22.95ppb
O3
0.51ppb
SO2
9.01ppb
NO2
0.10ppm
CO
AQI 38
Good
6.99μg/m³
PM2.5
27.88μg/m³
PM10
21.72ppb
O3
0.51ppb
SO2
8.11ppb
NO2
0.10ppm
CO
AQI 27
Good
5.12μg/m³
PM2.5
19.40μg/m³
PM10
21.74ppb
O3
0.52ppb
SO2
9.04ppb
NO2
0.10ppm
CO
Air quality and pollutant data for Washington, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Mill Creek, Washington is updated every hour for accuracy.
In the past 24 hours, the air quality in Mill Creek, Washington was at its worst at 09:00:00 on 2025-06-06.
In the last 24 hours, the best air quality in Mill Creek, Washington was observed at 05:00:00 on 2025-06-06.
As of now, the AQI in Mill Creek, Washington is 27, indicating Good conditions.
Mill Creek, Washington air has the highest levels of PM2.5.
Poor air quality in Mill Creek, Washington means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Mill Creek, Washington are currently 4.945 μg/m3.
The PM10 concentration in Mill Creek, Washington is 18.99 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Mill Creek, Washington is 0.1 ppm.
Currently, Mill Creek, Washington has a sulfur dioxide (SO2) concentration of 0.512 ppb.
The current ozone (O3) level in Mill Creek, Washington at the moment is 22.303 ppm.
Nitrogen dioxide (NO2) level in Mill Creek, Washington at the moment is 8.122 ppb.
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