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)
16
Good
Mill Creek, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.10 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.21 μg/m³
0
55
155
255
425
605+
9.57 ppb
0
55
71
86
201
201+
0.21 ppb
0
36
76
186
605
1005+
8.69 ppb
0
54
101
361
1250
2050+
0.24 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 11
Good
2.02μg/m³
PM2.5
10.95μg/m³
PM10
10.24ppb
O3
0.30ppb
SO2
7.14ppb
NO2
0.15ppm
CO
AQI 9
Good
1.16μg/m³
PM2.5
8.36μg/m³
PM10
10.34ppb
O3
0.30ppb
SO2
6.98ppb
NO2
0.15ppm
CO
AQI 9
Good
0.82μg/m³
PM2.5
7.47μg/m³
PM10
10.36ppb
O3
0.30ppb
SO2
6.44ppb
NO2
0.15ppm
CO
AQI 11
Good
1.73μg/m³
PM2.5
10.53μg/m³
PM10
10.06ppb
O3
0.30ppb
SO2
6.42ppb
NO2
0.15ppm
CO
AQI 30
Good
3.79μg/m³
PM2.5
32.21μg/m³
PM10
11.72ppb
O3
0.30ppb
SO2
6.45ppb
NO2
0.14ppm
CO
AQI 9
Good
0.85μg/m³
PM2.5
7.55μg/m³
PM10
10.37ppb
O3
0.30ppb
SO2
6.52ppb
NO2
0.15ppm
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 2026-08-17.
In the last 24 hours, the best air quality in Mill Creek, Washington was observed at 01:00:00 on 2026-08-17.
As of now, the AQI in Mill Creek, Washington is 16, 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 3.105 μg/m3.
The PM10 concentration in Mill Creek, Washington is 11.207 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Mill Creek, Washington is 0.239 ppm.
Currently, Mill Creek, Washington has a sulfur dioxide (SO2) concentration of 0.208 ppb.
The current ozone (O3) level in Mill Creek, Washington at the moment is 9.569 ppm.
Nitrogen dioxide (NO2) level in Mill Creek, Washington at the moment is 8.685 ppb.
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