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)
16
Good
Port Townsend, Washington
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.20 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.97 μg/m³
0
55
155
255
425
605+
10.35 ppb
0
55
71
86
201
201+
1.06 ppb
0
36
76
186
605
1005+
6.59 ppb
0
54
101
361
1250
2050+
0.14 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 33
Good
5.99μg/m³
PM2.5
18.89μg/m³
PM10
29.21ppb
O3
0.30ppb
SO2
6.23ppb
NO2
0.10ppm
CO
AQI 28
Good
2.73μg/m³
PM2.5
11.13μg/m³
PM10
30.38ppb
O3
0.29ppb
SO2
5.83ppb
NO2
0.10ppm
CO
AQI 29
Good
1.14μg/m³
PM2.5
5.22μg/m³
PM10
30.64ppb
O3
0.30ppb
SO2
8.55ppb
NO2
0.11ppm
CO
AQI 29
Good
2.70μg/m³
PM2.5
15.12μg/m³
PM10
30.76ppb
O3
0.29ppb
SO2
8.36ppb
NO2
0.10ppm
CO
AQI 33
Good
6.28μg/m³
PM2.5
27.73μg/m³
PM10
29.96ppb
O3
0.34ppb
SO2
7.81ppb
NO2
0.12ppm
CO
AQI 28
Good
4.29μg/m³
PM2.5
18.95μg/m³
PM10
30.00ppb
O3
0.33ppb
SO2
8.14ppb
NO2
0.11ppm
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 01:00:00 on 2025-07-22.
In the last 24 hours, the best air quality in Port Townsend, Washington was observed at 10:00:00 on 2025-07-22.
As of now, the AQI in Port Townsend, Washington is 27, indicating Good conditions.
Port Townsend, Washington air has the highest levels of O3.
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 5.061 μg/m3.
The PM10 concentration in Port Townsend, Washington is 21.826 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 0.293 ppb.
The current ozone (O3) level in Port Townsend, Washington at the moment is 28.69 ppm.
Nitrogen dioxide (NO2) level in Port Townsend, Washington at the moment is 7.071 ppb.
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