Stay updated with real-time air quality in Port Washington, Wisconsin 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)
39
Good
Port Washington, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.89 μg/m³
0
55
155
255
425
605+
42.12 ppb
0
55
71
86
201
201+
0.42 ppb
0
36
76
186
605
1005+
5.08 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Port Washington, Wisconsin
Port Washington, Wisconsin
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AQI 36
Good
3.77μg/m³
PM2.5
18.02μg/m³
PM10
39.17ppb
O3
0.42ppb
SO2
6.62ppb
NO2
0.26ppm
CO
AQI 37
Good
3.73μg/m³
PM2.5
17.49μg/m³
PM10
39.52ppb
O3
0.40ppb
SO2
5.70ppb
NO2
0.26ppm
CO
AQI 37
Good
3.85μg/m³
PM2.5
17.26μg/m³
PM10
39.60ppb
O3
0.36ppb
SO2
4.58ppb
NO2
0.27ppm
CO
AQI 37
Good
3.97μg/m³
PM2.5
18.98μg/m³
PM10
40.11ppb
O3
0.45ppb
SO2
4.61ppb
NO2
0.24ppm
CO
AQI 37
Good
3.85μg/m³
PM2.5
17.37μg/m³
PM10
39.92ppb
O3
0.35ppb
SO2
3.66ppb
NO2
0.27ppm
CO
AQI 36
Good
3.94μg/m³
PM2.5
18.05μg/m³
PM10
39.21ppb
O3
0.42ppb
SO2
7.07ppb
NO2
0.26ppm
CO
The air quality data for Wisconsin, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Port Washington, Wisconsin are available every hour.
Port Washington, Wisconsin experienced its worst air quality at 04:00:00, 2026-09-04.
The best air quality in Port Washington, Wisconsin was observed at 09:00:00 on 2026-09-04.
The air quality in Port Washington, Wisconsin right now is Good, with an AQI of 37.
In Port Washington, Wisconsin, O3 is the most frequently found pollutant.
When air quality in Port Washington, Wisconsin is compromised, staying indoors and wearing a mask can reduce health risks.
Port Washington, Wisconsin currently has a PM2.5 concentration of 3.513 μg/m3.
Port Washington, Wisconsin currently has a PM10 concentration of 16.573 μg/m3.
The current carbon monoxide (CO) level in Port Washington, Wisconsin is 0.256 ppm.
The current sulfur dioxide (SO2) concentration in Port Washington, Wisconsin is 0.431 ppb.
Port Washington, Wisconsin currently has an ozone (O3) concentration of 40.274 ppm.
The current level of nitrogen dioxide (NO2) in Port Washington, Wisconsin is 6.385 ppb.
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