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)
17
Good
Mill Creek, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.43 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.57 μg/m³
0
55
155
255
425
605+
18.04 ppb
0
55
71
86
201
201+
0.68 ppb
0
36
76
186
605
1005+
8.64 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Mill Creek, Washington
Mill Creek, Washington
Scroll To Air Quality MapLoading...
AQI 22
Good
4.05μg/m³
PM2.5
16.52μg/m³
PM10
10.98ppb
O3
0.54ppb
SO2
8.27ppb
NO2
0.18ppm
CO
AQI 16
Good
3.21μg/m³
PM2.5
11.96μg/m³
PM10
10.68ppb
O3
0.53ppb
SO2
8.40ppb
NO2
0.18ppm
CO
AQI 16
Good
2.97μg/m³
PM2.5
10.55μg/m³
PM10
10.42ppb
O3
0.52ppb
SO2
8.42ppb
NO2
0.18ppm
CO
AQI 22
Good
4.26μg/m³
PM2.5
17.01μg/m³
PM10
10.21ppb
O3
0.52ppb
SO2
8.26ppb
NO2
0.18ppm
CO
AQI 27
Good
4.56μg/m³
PM2.5
20.28μg/m³
PM10
14.82ppb
O3
0.52ppb
SO2
8.41ppb
NO2
0.18ppm
CO
AQI 16
Good
2.97μg/m³
PM2.5
10.60μg/m³
PM10
10.47ppb
O3
0.52ppb
SO2
8.42ppb
NO2
0.18ppm
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 2026-10-22.
In the last 24 hours, the best air quality in Mill Creek, Washington was observed at 08:00:00 on 2026-10-22.
As of now, the AQI in Mill Creek, Washington is 17, 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 3.434 μg/m3.
The PM10 concentration in Mill Creek, Washington is 15.568 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Mill Creek, Washington is 0.21 ppm.
Currently, Mill Creek, Washington has a sulfur dioxide (SO2) concentration of 0.68 ppb.
The current ozone (O3) level in Mill Creek, Washington at the moment is 18.039 ppm.
Nitrogen dioxide (NO2) level in Mill Creek, Washington at the moment is 8.639 ppb.
All Rights Reserved © Ambee Inc. 2025