Stay updated with real-time air quality in Yelm, 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)
14
Good
Yelm, Washington
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
2.31 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.76 μg/m³
0
55
155
255
425
605+
15.24 ppb
0
55
71
86
201
201+
0.16 ppb
0
36
76
186
605
1005+
4.04 ppb
0
54
101
361
1250
2050+
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Yelm, Washington
Yelm, Washington
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AQI 27
Good
4.68μg/m³
PM2.5
13.10μg/m³
PM10
17.52ppb
O3
0.29ppb
SO2
4.09ppb
NO2
0.10ppm
CO
AQI 16
Good
2.72μg/m³
PM2.5
11.11μg/m³
PM10
17.42ppb
O3
0.29ppb
SO2
2.93ppb
NO2
0.10ppm
CO
AQI 19
Good
3.43μg/m³
PM2.5
13.60μg/m³
PM10
19.94ppb
O3
0.30ppb
SO2
5.63ppb
NO2
0.10ppm
CO
AQI 22
Good
3.59μg/m³
PM2.5
15.26μg/m³
PM10
19.22ppb
O3
0.30ppb
SO2
5.61ppb
NO2
0.10ppm
CO
AQI 17
Good
2.83μg/m³
PM2.5
11.71μg/m³
PM10
17.54ppb
O3
0.29ppb
SO2
2.99ppb
NO2
0.10ppm
CO
AQI 17
Good
2.82μg/m³
PM2.5
11.68μg/m³
PM10
17.50ppb
O3
0.29ppb
SO2
2.98ppb
NO2
0.10ppm
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 Yelm, Washington is updated every hour for accuracy.
In the past 24 hours, the air quality in Yelm, Washington was at its worst at 06:00:00 on 2025-07-25.
In the last 24 hours, the best air quality in Yelm, Washington was observed at 02:00:00 on 2025-07-24.
As of now, the AQI in Yelm, Washington is 22, indicating Good conditions.
Yelm, Washington air has the highest levels of PM2.5.
Poor air quality in Yelm, Washington means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Yelm, Washington are currently 3.923 μg/m3.
The PM10 concentration in Yelm, Washington is 10.906 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Yelm, Washington is 0.1 ppm.
Currently, Yelm, Washington has a sulfur dioxide (SO2) concentration of 0.256 ppb.
The current ozone (O3) level in Yelm, Washington at the moment is 18.046 ppm.
Nitrogen dioxide (NO2) level in Yelm, Washington at the moment is 3.042 ppb.
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