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)
28
Good
Port Washington, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.10 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
3.92 μg/m³
0
55
155
255
425
605+
29.84 ppb
0
55
71
86
201
201+
0.22 ppb
0
36
76
186
605
1005+
5.28 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Port Washington, Wisconsin
Port Washington, Wisconsin
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AQI 27
Good
1.22μg/m³
PM2.5
4.36μg/m³
PM10
29.13ppb
O3
0.22ppb
SO2
5.37ppb
NO2
0.17ppm
CO
AQI 27
Good
1.28μg/m³
PM2.5
4.55μg/m³
PM10
29.41ppb
O3
0.22ppb
SO2
5.10ppb
NO2
0.17ppm
CO
AQI 27
Good
1.49μg/m³
PM2.5
5.17μg/m³
PM10
29.49ppb
O3
0.22ppb
SO2
4.96ppb
NO2
0.18ppm
CO
AQI 29
Good
1.25μg/m³
PM2.5
3.75μg/m³
PM10
31.05ppb
O3
0.24ppb
SO2
5.57ppb
NO2
0.15ppm
CO
AQI 28
Good
1.50μg/m³
PM2.5
5.19μg/m³
PM10
29.50ppb
O3
0.22ppb
SO2
4.37ppb
NO2
0.18ppm
CO
AQI 27
Good
1.58μg/m³
PM2.5
5.96μg/m³
PM10
29.35ppb
O3
0.23ppb
SO2
5.49ppb
NO2
0.17ppm
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 12:00:00, 2026-04-28.
The best air quality in Port Washington, Wisconsin was observed at 02:00:00 on 2026-04-28.
The air quality in Port Washington, Wisconsin right now is Good, with an AQI of 28.
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 1.102 μg/m3.
Port Washington, Wisconsin currently has a PM10 concentration of 3.921 μg/m3.
The current carbon monoxide (CO) level in Port Washington, Wisconsin is 0.166 ppm.
The current sulfur dioxide (SO2) concentration in Port Washington, Wisconsin is 0.223 ppb.
Port Washington, Wisconsin currently has an ozone (O3) concentration of 29.842 ppm.
The current level of nitrogen dioxide (NO2) in Port Washington, Wisconsin is 5.278 ppb.
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