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)
22
Good
Maple Valley, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.15 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.43 μg/m³
0
55
155
255
425
605+
15.30 ppb
0
55
71
86
201
201+
0.44 ppb
0
36
76
186
605
1005+
4.84 ppb
0
54
101
361
1250
2050+
0.17 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 22
Good
4.31μg/m³
PM2.5
18.60μg/m³
PM10
14.40ppb
O3
0.44ppb
SO2
4.78ppb
NO2
0.17ppm
CO
AQI 22
Good
3.67μg/m³
PM2.5
15.30μg/m³
PM10
17.34ppb
O3
0.44ppb
SO2
3.05ppb
NO2
0.17ppm
CO
AQI 22
Good
4.44μg/m³
PM2.5
18.77μg/m³
PM10
17.27ppb
O3
0.46ppb
SO2
6.19ppb
NO2
0.17ppm
CO
AQI 17
Good
3.50μg/m³
PM2.5
15.75μg/m³
PM10
18.26ppb
O3
0.45ppb
SO2
5.99ppb
NO2
0.17ppm
CO
AQI 22
Good
4.27μg/m³
PM2.5
18.45μg/m³
PM10
17.24ppb
O3
0.46ppb
SO2
4.80ppb
NO2
0.16ppm
CO
AQI 18
Good
3.48μg/m³
PM2.5
16.05μg/m³
PM10
18.96ppb
O3
0.44ppb
SO2
6.09ppb
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 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 08:00:00 on 2026-09-06.
In the last 24 hours, the best air quality in Maple Valley, Washington was observed at 09:00:00 on 2026-09-07.
As of now, the AQI in Maple Valley, Washington is 22, 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 4.149 μg/m3.
The PM10 concentration in Maple Valley, Washington is 15.434 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Maple Valley, Washington is 0.166 ppm.
Currently, Maple Valley, Washington has a sulfur dioxide (SO2) concentration of 0.437 ppb.
The current ozone (O3) level in Maple Valley, Washington at the moment is 15.302 ppm.
Nitrogen dioxide (NO2) level in Maple Valley, Washington at the moment is 4.836 ppb.
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