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)
22
Good
Centralia, Washington
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
2.96 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.76 μg/m³
0
55
155
255
425
605+
24.48 ppb
0
55
71
86
201
201+
0.56 ppb
0
36
76
186
605
1005+
5.80 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Centralia, Washington
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AQI 38
Good
6.78μg/m³
PM2.5
30.15μg/m³
PM10
19.88ppb
O3
0.56ppb
SO2
6.24ppb
NO2
0.17ppm
CO
AQI 38
Good
6.82μg/m³
PM2.5
30.33μg/m³
PM10
19.85ppb
O3
0.56ppb
SO2
6.24ppb
NO2
0.17ppm
CO
AQI 26
Good
3.04μg/m³
PM2.5
15.37μg/m³
PM10
27.78ppb
O3
0.54ppb
SO2
6.19ppb
NO2
0.18ppm
CO
AQI 38
Good
7.31μg/m³
PM2.5
32.60μg/m³
PM10
18.32ppb
O3
0.55ppb
SO2
6.21ppb
NO2
0.17ppm
CO
AQI 22
Good
4.22μg/m³
PM2.5
16.44μg/m³
PM10
22.28ppb
O3
0.54ppb
SO2
6.79ppb
NO2
0.18ppm
CO
AQI 35
Good
3.67μg/m³
PM2.5
16.33μg/m³
PM10
38.37ppb
O3
0.52ppb
SO2
6.98ppb
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 05:00:00 on 2025-06-06.
In the last 24 hours, the best air quality in Centralia, Washington was observed at 03:00:00 on 2025-06-06.
As of now, the AQI in Centralia, Washington is 22, 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 2.963 μg/m3.
The PM10 concentration in Centralia, Washington is 12.755 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Centralia, Washington is 0.171 ppm.
Currently, Centralia, Washington has a sulfur dioxide (SO2) concentration of 0.556 ppb.
The current ozone (O3) level in Centralia, Washington at the moment is 24.483 ppm.
Nitrogen dioxide (NO2) level in Centralia, Washington at the moment is 5.801 ppb.
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