Stay updated with real-time air quality in Port Huron, Michigan 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)
52
Moderate
Port Huron, Michigan
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.24 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
45.45 μg/m³
0
55
155
255
425
605+
26.02 ppb
0
55
71
86
201
201+
0.98 ppb
0
36
76
186
605
1005+
7.68 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Port Huron, Michigan
Port Huron, Michigan
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AQI 52
Moderate
10.38μg/m³
PM2.5
46.02μg/m³
PM10
26.02ppb
O3
0.97ppb
SO2
7.50ppb
NO2
0.21ppm
CO
AQI 54
Moderate
11.10μg/m³
PM2.5
49.01μg/m³
PM10
25.15ppb
O3
0.75ppb
SO2
7.11ppb
NO2
0.21ppm
CO
AQI 54
Moderate
11.22μg/m³
PM2.5
49.52μg/m³
PM10
25.12ppb
O3
0.75ppb
SO2
7.19ppb
NO2
0.21ppm
CO
AQI 56
Moderate
11.89μg/m³
PM2.5
52.61μg/m³
PM10
24.54ppb
O3
0.78ppb
SO2
8.65ppb
NO2
0.21ppm
CO
AQI 54
Moderate
10.71μg/m³
PM2.5
50.46μg/m³
PM10
25.05ppb
O3
0.62ppb
SO2
8.10ppb
NO2
0.21ppm
CO
AQI 56
Moderate
12.36μg/m³
PM2.5
59.64μg/m³
PM10
22.64ppb
O3
0.63ppb
SO2
11.04ppb
NO2
0.21ppm
CO
Air quality data and pollutant measurements for Michigan, 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 Port Huron, Michigan is updated every hour.
The worst air quality in Port Huron, Michigan in the last 24 hours was observed at 07:00:00 on 2025-12-06.
In the last 24 hrs, the best air quality in Port Huron, Michigan was observed at 04:00:00 on 2025-12-07.
The current air quality in Port Huron, Michigan is 52, categorized as Moderate based on real-time data.
The most common pollutant in Port Huron, Michigan is PM2.5.
If the air quality in Port Huron, Michigan is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Port Huron, Michigan is 10.237 μg/m3.
The current PM10 concentration at Port Huron, Michigan is 45.451 μg/m3.
The current carbon monoxide (CO) concentration at Port Huron, Michigan is 0.214 ppm.
The current sulfur dioxide (SO2) concentration at Port Huron, Michigan is 0.979 ppb.
The current ozone (O3) concentration at Port Huron, Michigan is 26.025 ppm.
The current nitrogen dioxide (NO2) concentration at Port Huron, Michigan is 7.679 ppb.
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