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
3.86 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.31 μg/m³
0
55
155
255
425
605+
19.17 ppb
0
55
71
86
201
201+
0.23 ppb
0
36
76
186
605
1005+
10.80 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 22
Good
4.08μg/m³
PM2.5
19.63μg/m³
PM10
15.89ppb
O3
0.23ppb
SO2
10.70ppb
NO2
0.18ppm
CO
AQI 28
Good
3.00μg/m³
PM2.5
29.75μg/m³
PM10
17.74ppb
O3
0.23ppb
SO2
12.50ppb
NO2
0.18ppm
CO
AQI 26
Good
3.80μg/m³
PM2.5
28.30μg/m³
PM10
11.90ppb
O3
0.23ppb
SO2
8.86ppb
NO2
0.19ppm
CO
AQI 27
Good
4.76μg/m³
PM2.5
19.32μg/m³
PM10
14.91ppb
O3
0.19ppb
SO2
9.46ppb
NO2
0.19ppm
CO
AQI 38
Good
7.26μg/m³
PM2.5
30.69μg/m³
PM10
18.69ppb
O3
0.20ppb
SO2
11.24ppb
NO2
0.19ppm
CO
AQI 27
Good
4.52μg/m³
PM2.5
18.47μg/m³
PM10
14.21ppb
O3
0.19ppb
SO2
9.18ppb
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 10:00:00 on 2025-12-12.
In the last 24 hours, the best air quality in Maple Valley, Washington was observed at 01:00:00 on 2025-12-12.
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 3.863 μg/m3.
The PM10 concentration in Maple Valley, Washington is 17.311 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Maple Valley, Washington is 0.179 ppm.
Currently, Maple Valley, Washington has a sulfur dioxide (SO2) concentration of 0.235 ppb.
The current ozone (O3) level in Maple Valley, Washington at the moment is 19.172 ppm.
Nitrogen dioxide (NO2) level in Maple Valley, Washington at the moment is 10.803 ppb.
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