Stay updated with real-time air quality in Tacoma, 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)
24
Good
Tacoma, Washington
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.27 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.85 μg/m³
0
55
155
255
425
605+
25.67 ppb
0
55
71
86
201
201+
0.67 ppb
0
36
76
186
605
1005+
8.94 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Tacoma, Washington
Tacoma, Washington
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AQI 26
Good
3.94μg/m³
PM2.5
17.53μg/m³
PM10
28.03ppb
O3
0.60ppb
SO2
10.18ppb
NO2
0.19ppm
CO
AQI 24
Good
4.06μg/m³
PM2.5
17.78μg/m³
PM10
26.50ppb
O3
0.60ppb
SO2
10.17ppb
NO2
0.18ppm
CO
AQI 27
Good
3.83μg/m³
PM2.5
16.74μg/m³
PM10
28.66ppb
O3
0.60ppb
SO2
10.15ppb
NO2
0.18ppm
CO
AQI 29
Good
3.51μg/m³
PM2.5
15.36μg/m³
PM10
31.38ppb
O3
0.60ppb
SO2
10.23ppb
NO2
0.19ppm
CO
AQI 28
Good
4.65μg/m³
PM2.5
20.78μg/m³
PM10
29.94ppb
O3
0.60ppb
SO2
10.29ppb
NO2
0.18ppm
CO
AQI 28
Good
4.65μg/m³
PM2.5
20.78μg/m³
PM10
29.94ppb
O3
0.60ppb
SO2
10.29ppb
NO2
0.18ppm
CO
Air quality data and pollutant measurements for Washington, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Tacoma, Washington is updated every hour.
The worst air quality in Tacoma, Washington in the last 24 hours was observed at 09:00:00 on 2025-07-23.
In the last 24 hrs, the best air quality in Tacoma, Washington was observed at 02:00:00 on 2025-07-23.
The current air quality in Tacoma, Washington is 23, categorized as Good based on real-time data.
The most common pollutant in Tacoma, Washington is O3.
If the air quality in Tacoma, Washington is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Tacoma, Washington is 4.248 μg/m3.
The current PM10 concentration at Tacoma, Washington is 18.584 μg/m3.
The current carbon monoxide (CO) concentration at Tacoma, Washington is 0.186 ppm.
The current sulfur dioxide (SO2) concentration at Tacoma, Washington is 0.6 ppb.
The current ozone (O3) concentration at Tacoma, Washington is 24.564 ppm.
The current nitrogen dioxide (NO2) concentration at Tacoma, Washington is 10.091 ppb.
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