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)
38
Good
Maple Valley, Washington
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.51 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.08 μg/m³
0
55
155
255
425
605+
39.74 ppb
0
55
71
86
201
201+
0.45 ppb
0
36
76
186
605
1005+
8.80 ppb
0
54
101
361
1250
2050+
0.10 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 28
Good
3.56μg/m³
PM2.5
14.48μg/m³
PM10
30.17ppb
O3
0.31ppb
SO2
8.70ppb
NO2
0.11ppm
CO
AQI 31
Good
4.55μg/m³
PM2.5
21.60μg/m³
PM10
33.89ppb
O3
0.31ppb
SO2
8.60ppb
NO2
0.11ppm
CO
AQI 29
Good
2.62μg/m³
PM2.5
8.66μg/m³
PM10
30.95ppb
O3
0.31ppb
SO2
9.11ppb
NO2
0.11ppm
CO
AQI 29
Good
3.68μg/m³
PM2.5
14.73μg/m³
PM10
31.30ppb
O3
0.31ppb
SO2
9.28ppb
NO2
0.11ppm
CO
AQI 29
Good
3.53μg/m³
PM2.5
16.66μg/m³
PM10
31.36ppb
O3
0.30ppb
SO2
9.37ppb
NO2
0.10ppm
CO
AQI 29
Good
3.68μg/m³
PM2.5
13.37μg/m³
PM10
31.04ppb
O3
0.31ppb
SO2
9.05ppb
NO2
0.11ppm
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 03:00:00 on 2025-07-22.
In the last 24 hours, the best air quality in Maple Valley, Washington was observed at 06:00:00 on 2025-07-22.
As of now, the AQI in Maple Valley, Washington is 31, indicating Good conditions.
Maple Valley, Washington air has the highest levels of O3.
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 4.671 μg/m3.
The PM10 concentration in Maple Valley, Washington is 20.081 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Maple Valley, Washington is 0.11 ppm.
Currently, Maple Valley, Washington has a sulfur dioxide (SO2) concentration of 0.309 ppb.
The current ozone (O3) level in Maple Valley, Washington at the moment is 33.792 ppm.
Nitrogen dioxide (NO2) level in Maple Valley, Washington at the moment is 8.69 ppb.
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