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)
28
Good
Maple Valley, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.27 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
6.71 μg/m³
0
55
155
255
425
605+
30.09 ppb
0
55
71
86
201
201+
0.23 ppb
0
36
76
186
605
1005+
6.31 ppb
0
54
101
361
1250
2050+
0.18 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 33
Good
6.05μg/m³
PM2.5
25.51μg/m³
PM10
15.45ppb
O3
0.30ppb
SO2
15.53ppb
NO2
0.19ppm
CO
AQI 33
Good
6.09μg/m³
PM2.5
27.92μg/m³
PM10
18.61ppb
O3
0.33ppb
SO2
15.87ppb
NO2
0.18ppm
CO
AQI 33
Good
6.30μg/m³
PM2.5
27.85μg/m³
PM10
10.00ppb
O3
0.32ppb
SO2
16.09ppb
NO2
0.19ppm
CO
AQI 38
Good
7.13μg/m³
PM2.5
29.63μg/m³
PM10
12.16ppb
O3
0.32ppb
SO2
15.03ppb
NO2
0.20ppm
CO
AQI 44
Good
7.84μg/m³
PM2.5
32.85μg/m³
PM10
14.16ppb
O3
0.32ppb
SO2
15.67ppb
NO2
0.19ppm
CO
AQI 38
Good
6.92μg/m³
PM2.5
28.99μg/m³
PM10
12.55ppb
O3
0.32ppb
SO2
14.88ppb
NO2
0.19ppm
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 07:00:00 on 2025-10-24.
In the last 24 hours, the best air quality in Maple Valley, Washington was observed at 02:00:00 on 2025-10-24.
As of now, the AQI in Maple Valley, Washington is 33, indicating Good 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 6.056 μg/m3.
The PM10 concentration in Maple Valley, Washington is 33.156 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Maple Valley, Washington is 0.19 ppm.
Currently, Maple Valley, Washington has a sulfur dioxide (SO2) concentration of 0.301 ppb.
The current ozone (O3) level in Maple Valley, Washington at the moment is 22.127 ppm.
Nitrogen dioxide (NO2) level in Maple Valley, Washington at the moment is 15.748 ppb.
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