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)
44
Good
Tacoma, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.36 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
37.52 μg/m³
0
55
155
255
425
605+
17.91 ppb
0
55
71
86
201
201+
0.10 ppb
0
36
76
186
605
1005+
30.34 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Tacoma, Washington
Tacoma, Washington
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AQI 33
Good
6.17μg/m³
PM2.5
27.14μg/m³
PM10
19.55ppb
O3
0.12ppb
SO2
19.22ppb
NO2
0.13ppm
CO
AQI 33
Good
6.25μg/m³
PM2.5
27.42μg/m³
PM10
19.85ppb
O3
0.12ppb
SO2
20.44ppb
NO2
0.14ppm
CO
AQI 38
Good
6.86μg/m³
PM2.5
30.05μg/m³
PM10
19.58ppb
O3
0.13ppb
SO2
19.80ppb
NO2
0.14ppm
CO
AQI 44
Good
8.04μg/m³
PM2.5
35.25μg/m³
PM10
18.89ppb
O3
0.12ppb
SO2
19.65ppb
NO2
0.14ppm
CO
AQI 27
Good
5.15μg/m³
PM2.5
22.91μg/m³
PM10
19.29ppb
O3
0.12ppb
SO2
17.62ppb
NO2
0.14ppm
CO
AQI 27
Good
5.15μg/m³
PM2.5
22.91μg/m³
PM10
19.29ppb
O3
0.12ppb
SO2
17.62ppb
NO2
0.14ppm
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 03:00:00 on 2026-04-19.
In the last 24 hrs, the best air quality in Tacoma, Washington was observed at 05:00:00 on 2026-04-20.
The current air quality in Tacoma, Washington is 44, categorized as Good based on real-time data.
The most common pollutant in Tacoma, Washington is PM2.5.
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 8.359 μg/m3.
The current PM10 concentration at Tacoma, Washington is 37.515 μg/m3.
The current carbon monoxide (CO) concentration at Tacoma, Washington is 0.188 ppm.
The current sulfur dioxide (SO2) concentration at Tacoma, Washington is 0.1 ppb.
The current ozone (O3) concentration at Tacoma, Washington is 17.915 ppm.
The current nitrogen dioxide (NO2) concentration at Tacoma, Washington is 30.342 ppb.
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