Stay updated with real-time air quality in Centralia, 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)
32
Good
Centralia, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.53 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
6.17 μg/m³
0
55
155
255
425
605+
34.54 ppb
0
55
71
86
201
201+
0.26 ppb
0
36
76
186
605
1005+
5.78 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Centralia, Washington
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AQI 31
Good
2.55μg/m³
PM2.5
10.81μg/m³
PM10
34.49ppb
O3
0.24ppb
SO2
6.49ppb
NO2
0.17ppm
CO
AQI 32
Good
2.56μg/m³
PM2.5
10.85μg/m³
PM10
34.51ppb
O3
0.24ppb
SO2
6.48ppb
NO2
0.17ppm
CO
AQI 32
Good
1.94μg/m³
PM2.5
9.09μg/m³
PM10
34.54ppb
O3
0.24ppb
SO2
5.93ppb
NO2
0.17ppm
CO
AQI 31
Good
2.60μg/m³
PM2.5
11.02μg/m³
PM10
34.31ppb
O3
0.24ppb
SO2
6.36ppb
NO2
0.17ppm
CO
AQI 33
Good
2.01μg/m³
PM2.5
13.37μg/m³
PM10
36.45ppb
O3
0.24ppb
SO2
7.33ppb
NO2
0.18ppm
CO
AQI 32
Good
2.81μg/m³
PM2.5
9.65μg/m³
PM10
34.61ppb
O3
0.24ppb
SO2
8.49ppb
NO2
0.18ppm
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 Centralia, Washington is updated every hour for accuracy.
In the past 24 hours, the air quality in Centralia, Washington was at its worst at 04:00:00 on 2026-03-05.
In the last 24 hours, the best air quality in Centralia, Washington was observed at 07:00:00 on 2026-03-05.
As of now, the AQI in Centralia, Washington is 32, indicating Good conditions.
Centralia, Washington air has the highest levels of O3.
Poor air quality in Centralia, Washington means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Centralia, Washington are currently 1.534 μg/m3.
The PM10 concentration in Centralia, Washington is 6.172 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Centralia, Washington is 0.161 ppm.
Currently, Centralia, Washington has a sulfur dioxide (SO2) concentration of 0.26 ppb.
The current ozone (O3) level in Centralia, Washington at the moment is 34.543 ppm.
Nitrogen dioxide (NO2) level in Centralia, Washington at the moment is 5.784 ppb.
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