Stay updated with real-time air quality in Port Townsend, 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)
27
Good
Port Townsend, Washington
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.59 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.95 μg/m³
0
55
155
255
425
605+
25.95 ppb
0
55
71
86
201
201+
0.75 ppb
0
36
76
186
605
1005+
6.74 ppb
0
54
101
361
1250
2050+
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Port Townsend, Washington
Port Townsend, Washington
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AQI 27
Good
4.76μg/m³
PM2.5
20.46μg/m³
PM10
28.06ppb
O3
0.60ppb
SO2
7.93ppb
NO2
0.10ppm
CO
AQI 24
Good
1.56μg/m³
PM2.5
6.26μg/m³
PM10
25.73ppb
O3
0.67ppb
SO2
6.61ppb
NO2
0.10ppm
CO
AQI 26
Good
4.49μg/m³
PM2.5
18.88μg/m³
PM10
28.41ppb
O3
0.64ppb
SO2
7.99ppb
NO2
0.11ppm
CO
AQI 27
Good
5.31μg/m³
PM2.5
25.52μg/m³
PM10
25.40ppb
O3
0.69ppb
SO2
10.13ppb
NO2
0.10ppm
CO
AQI 52
Moderate
9.68μg/m³
PM2.5
43.44μg/m³
PM10
25.42ppb
O3
0.62ppb
SO2
8.07ppb
NO2
0.13ppm
CO
AQI 49
Good
8.85μg/m³
PM2.5
39.14μg/m³
PM10
25.43ppb
O3
0.62ppb
SO2
7.96ppb
NO2
0.13ppm
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 Port Townsend, Washington is updated every hour for accuracy.
In the past 24 hours, the air quality in Port Townsend, Washington was at its worst at 04:00:00 on 2025-06-07.
In the last 24 hours, the best air quality in Port Townsend, Washington was observed at 05:00:00 on 2025-06-06.
As of now, the AQI in Port Townsend, Washington is 27, indicating Good conditions.
Port Townsend, Washington air has the highest levels of PM2.5.
Poor air quality in Port Townsend, Washington means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Port Townsend, Washington are currently 4.591 μg/m3.
The PM10 concentration in Port Townsend, Washington is 19.955 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Port Townsend, Washington is 0.1 ppm.
Currently, Port Townsend, Washington has a sulfur dioxide (SO2) concentration of 0.748 ppb.
The current ozone (O3) level in Port Townsend, Washington at the moment is 25.948 ppm.
Nitrogen dioxide (NO2) level in Port Townsend, Washington at the moment is 6.738 ppb.
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