Stay updated with real-time air quality in Maple Valley, 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
Maple Valley, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
12.06 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
62.21 μg/m³
0
55
155
255
425
605+
13.27 ppb
0
55
71
86
201
201+
0.56 ppb
0
36
76
186
605
1005+
10.71 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Maple Valley, Washington
Maple Valley, Washington
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AQI 58
Moderate
13.32μg/m³
PM2.5
60.77μg/m³
PM10
10.79ppb
O3
0.55ppb
SO2
10.56ppb
NO2
0.27ppm
CO
AQI 64
Moderate
15.88μg/m³
PM2.5
53.07μg/m³
PM10
7.08ppb
O3
0.54ppb
SO2
10.38ppb
NO2
0.24ppm
CO
AQI 52
Moderate
9.89μg/m³
PM2.5
36.31μg/m³
PM10
10.83ppb
O3
0.59ppb
SO2
10.87ppb
NO2
0.26ppm
CO
AQI 49
Good
8.55μg/m³
PM2.5
37.81μg/m³
PM10
11.64ppb
O3
0.63ppb
SO2
10.52ppb
NO2
0.25ppm
CO
AQI 66
Moderate
16.63μg/m³
PM2.5
74.84μg/m³
PM10
11.31ppb
O3
0.61ppb
SO2
10.98ppb
NO2
0.26ppm
CO
AQI 44
Good
7.61μg/m³
PM2.5
33.46μg/m³
PM10
11.55ppb
O3
0.62ppb
SO2
10.55ppb
NO2
0.25ppm
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 Maple Valley, Washington is updated every hour for accuracy.
In the past 24 hours, the air quality in Maple Valley, Washington was at its worst at 03:00:00 on 2026-10-22.
In the last 24 hours, the best air quality in Maple Valley, Washington was observed at 11:00:00 on 2026-10-21.
As of now, the AQI in Maple Valley, Washington is 56, indicating Moderate conditions.
Maple Valley, Washington air has the highest levels of PM2.5.
Poor air quality in Maple Valley, Washington means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Maple Valley, Washington are currently 12.062 μg/m3.
The PM10 concentration in Maple Valley, Washington is 62.214 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Maple Valley, Washington is 0.248 ppm.
Currently, Maple Valley, Washington has a sulfur dioxide (SO2) concentration of 0.56 ppb.
The current ozone (O3) level in Maple Valley, Washington at the moment is 13.273 ppm.
Nitrogen dioxide (NO2) level in Maple Valley, Washington at the moment is 10.707 ppb.
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