Stay updated with real-time air quality in Hartland, 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)
38
Good
Hartland, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.70 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.97 μg/m³
0
55
155
255
425
605+
10.57 ppb
0
55
71
86
201
201+
0.51 ppb
0
36
76
186
605
1005+
7.87 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Hartland, Wisconsin
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AQI 38
Good
6.85μg/m³
PM2.5
13.95μg/m³
PM10
12.14ppb
O3
0.73ppb
SO2
8.28ppb
NO2
0.25ppm
CO
AQI 44
Good
7.90μg/m³
PM2.5
13.05μg/m³
PM10
11.79ppb
O3
0.73ppb
SO2
9.24ppb
NO2
0.26ppm
CO
AQI 33
Good
5.87μg/m³
PM2.5
15.12μg/m³
PM10
12.21ppb
O3
0.77ppb
SO2
7.96ppb
NO2
0.23ppm
CO
AQI 44
Good
7.97μg/m³
PM2.5
13.01μg/m³
PM10
11.95ppb
O3
0.74ppb
SO2
9.15ppb
NO2
0.26ppm
CO
AQI 33
Good
5.86μg/m³
PM2.5
12.03μg/m³
PM10
13.12ppb
O3
0.71ppb
SO2
8.16ppb
NO2
0.25ppm
CO
AQI 33
Good
6.43μg/m³
PM2.5
22.12μg/m³
PM10
12.07ppb
O3
0.67ppb
SO2
9.24ppb
NO2
0.27ppm
CO
Air quality data and pollutant measurements for Wisconsin, 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 Hartland, Wisconsin is updated every hour.
The worst air quality in Hartland, Wisconsin in the last 24 hours was observed at 03:00:00 on 2026-09-07.
In the last 24 hrs, the best air quality in Hartland, Wisconsin was observed at 07:00:00 on 2026-09-06.
The current air quality in Hartland, Wisconsin is 38, categorized as Good based on real-time data.
The most common pollutant in Hartland, Wisconsin is PM2.5.
If the air quality in Hartland, Wisconsin is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Hartland, Wisconsin is 6.701 μg/m3.
The current PM10 concentration at Hartland, Wisconsin is 13.975 μg/m3.
The current carbon monoxide (CO) concentration at Hartland, Wisconsin is 0.277 ppm.
The current sulfur dioxide (SO2) concentration at Hartland, Wisconsin is 0.508 ppb.
The current ozone (O3) concentration at Hartland, Wisconsin is 10.572 ppm.
The current nitrogen dioxide (NO2) concentration at Hartland, Wisconsin is 7.87 ppb.
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