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)
58
Moderate
Maple Valley, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
13.13 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
48.57 μg/m³
0
55
155
255
425
605+
15.59 ppb
0
55
71
86
201
201+
0.16 ppb
0
36
76
186
605
1005+
10.52 ppb
0
54
101
361
1250
2050+
0.38 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Maple Valley, Washington
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AQI 52
Moderate
9.54μg/m³
PM2.5
32.85μg/m³
PM10
19.67ppb
O3
0.94ppb
SO2
12.73ppb
NO2
0.32ppm
CO
AQI 56
Moderate
12.29μg/m³
PM2.5
52.73μg/m³
PM10
19.53ppb
O3
0.95ppb
SO2
14.50ppb
NO2
0.32ppm
CO
AQI 52
Moderate
10.33μg/m³
PM2.5
33.88μg/m³
PM10
19.90ppb
O3
0.89ppb
SO2
9.91ppb
NO2
0.33ppm
CO
AQI 52
Moderate
10.06μg/m³
PM2.5
41.06μg/m³
PM10
19.66ppb
O3
0.86ppb
SO2
11.22ppb
NO2
0.33ppm
CO
AQI 56
Moderate
11.74μg/m³
PM2.5
52.13μg/m³
PM10
19.89ppb
O3
0.88ppb
SO2
10.88ppb
NO2
0.33ppm
CO
AQI 52
Moderate
9.72μg/m³
PM2.5
39.70μg/m³
PM10
19.69ppb
O3
0.86ppb
SO2
11.30ppb
NO2
0.33ppm
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 06:00:00 on 2026-03-14.
In the last 24 hours, the best air quality in Maple Valley, Washington was observed at 03:00:00 on 2026-03-13.
As of now, the AQI in Maple Valley, Washington is 54, 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 10.616 μg/m3.
The PM10 concentration in Maple Valley, Washington is 49.008 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Maple Valley, Washington is 0.388 ppm.
Currently, Maple Valley, Washington has a sulfur dioxide (SO2) concentration of 0.137 ppb.
The current ozone (O3) level in Maple Valley, Washington at the moment is 18.801 ppm.
Nitrogen dioxide (NO2) level in Maple Valley, Washington at the moment is 9.525 ppb.
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