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)
75
Moderate
Maple Valley, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
18.71 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
104.28 μg/m³
0
55
155
255
425
605+
11.00 ppb
0
55
71
86
201
201+
0.29 ppb
0
36
76
186
605
1005+
6.86 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Maple Valley, Washington
Maple Valley, Washington
Scroll To Air Quality MapLoading...
AQI 38
Good
7.03μg/m³
PM2.5
32.05μg/m³
PM10
6.65ppb
O3
0.29ppb
SO2
6.80ppb
NO2
0.14ppm
CO
AQI 111
Unhealthy for sensitive groups
31.12μg/m³
PM2.5
176.18μg/m³
PM10
8.84ppb
O3
0.30ppb
SO2
6.67ppb
NO2
0.14ppm
CO
AQI 38
Good
6.52μg/m³
PM2.5
39.68μg/m³
PM10
6.86ppb
O3
0.28ppb
SO2
5.85ppb
NO2
0.14ppm
CO
AQI 20
Good
3.46μg/m³
PM2.5
22.13μg/m³
PM10
7.54ppb
O3
0.28ppb
SO2
7.23ppb
NO2
0.14ppm
CO
AQI 11
Good
2.36μg/m³
PM2.5
10.16μg/m³
PM10
6.93ppb
O3
0.28ppb
SO2
6.18ppb
NO2
0.14ppm
CO
AQI 25
Good
3.35μg/m³
PM2.5
27.44μg/m³
PM10
6.11ppb
O3
0.29ppb
SO2
6.96ppb
NO2
0.14ppm
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 12:00:00 on 2026-08-17.
In the last 24 hours, the best air quality in Maple Valley, Washington was observed at 04:00:00 on 2026-08-16.
As of now, the AQI in Maple Valley, Washington is 75, indicating Moderate conditions.
Maple Valley, Washington air has the highest levels of PM10.
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 18.712 μg/m3.
The PM10 concentration in Maple Valley, Washington is 104.277 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Maple Valley, Washington is 0.143 ppm.
Currently, Maple Valley, Washington has a sulfur dioxide (SO2) concentration of 0.295 ppb.
The current ozone (O3) level in Maple Valley, Washington at the moment is 10.999 ppm.
Nitrogen dioxide (NO2) level in Maple Valley, Washington at the moment is 6.858 ppb.
All Rights Reserved © Ambee Inc. 2025