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)
23
Good
Mill Creek, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.06 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.87 μg/m³
0
55
155
255
425
605+
25.22 ppb
0
55
71
86
201
201+
0.32 ppb
0
36
76
186
605
1005+
5.59 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Mill Creek, Washington
Mill Creek, Washington
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AQI 24
Good
3.33μg/m³
PM2.5
9.53μg/m³
PM10
26.38ppb
O3
0.33ppb
SO2
10.33ppb
NO2
0.18ppm
CO
AQI 24
Good
3.48μg/m³
PM2.5
6.88μg/m³
PM10
25.81ppb
O3
0.33ppb
SO2
10.32ppb
NO2
0.17ppm
CO
AQI 24
Good
3.54μg/m³
PM2.5
5.62μg/m³
PM10
25.57ppb
O3
0.33ppb
SO2
10.30ppb
NO2
0.17ppm
CO
AQI 24
Good
3.48μg/m³
PM2.5
7.82μg/m³
PM10
26.10ppb
O3
0.33ppb
SO2
10.20ppb
NO2
0.18ppm
CO
AQI 37
Good
3.32μg/m³
PM2.5
39.68μg/m³
PM10
26.93ppb
O3
0.33ppb
SO2
8.93ppb
NO2
0.17ppm
CO
AQI 24
Good
3.53μg/m³
PM2.5
5.75μg/m³
PM10
25.59ppb
O3
0.33ppb
SO2
10.32ppb
NO2
0.17ppm
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 03:00:00 on 2025-10-24.
In the last 24 hours, the best air quality in Mill Creek, Washington was observed at 09:00:00 on 2025-10-24.
As of now, the AQI in Mill Creek, Washington is 24, indicating Good conditions.
Mill Creek, Washington air has the highest levels of O3.
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 3.418 μg/m3.
The PM10 concentration in Mill Creek, Washington is 8.236 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Mill Creek, Washington is 0.176 ppm.
Currently, Mill Creek, Washington has a sulfur dioxide (SO2) concentration of 0.333 ppb.
The current ozone (O3) level in Mill Creek, Washington at the moment is 26.133 ppm.
Nitrogen dioxide (NO2) level in Mill Creek, Washington at the moment is 10.286 ppb.
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