Stay updated with real-time air quality in Monroe City, 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)
67
Moderate
Monroe City, Michigan
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
17.75 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
67.68 μg/m³
0
55
155
255
425
605+
14.39 ppb
0
55
71
86
201
201+
1.39 ppb
0
36
76
186
605
1005+
11.37 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Monroe City, Michigan
Monroe City, Michigan
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AQI 67
Moderate
17.75μg/m³
PM2.5
67.68μg/m³
PM10
14.39ppb
O3
1.39ppb
SO2
11.37ppb
NO2
0.20ppm
CO
AQI 67
Moderate
17.75μg/m³
PM2.5
67.68μg/m³
PM10
14.39ppb
O3
1.39ppb
SO2
11.37ppb
NO2
0.20ppm
CO
AQI 78
Moderate
21.27μg/m³
PM2.5
110.09μg/m³
PM10
16.05ppb
O3
1.09ppb
SO2
11.33ppb
NO2
0.20ppm
CO
AQI 54
Moderate
10.86μg/m³
PM2.5
44.45μg/m³
PM10
17.90ppb
O3
1.02ppb
SO2
10.35ppb
NO2
0.20ppm
CO
AQI 67
Moderate
18.15μg/m³
PM2.5
67.95μg/m³
PM10
18.03ppb
O3
1.44ppb
SO2
11.82ppb
NO2
0.20ppm
CO
AQI 54
Moderate
10.86μg/m³
PM2.5
44.45μg/m³
PM10
17.90ppb
O3
1.02ppb
SO2
10.35ppb
NO2
0.20ppm
CO
Air quality and pollutant data for Michigan, 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 Monroe City, Michigan is updated every hour for accuracy.
In the past 24 hours, the air quality in Monroe City, Michigan was at its worst at 11:00:00 on 2025-12-07.
In the last 24 hours, the best air quality in Monroe City, Michigan was observed at 10:00:00 on 2025-12-07.
As of now, the AQI in Monroe City, Michigan is 67, indicating Moderate conditions.
Monroe City, Michigan air has the highest levels of PM2.5.
Poor air quality in Monroe City, Michigan means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Monroe City, Michigan are currently 17.75 μg/m3.
The PM10 concentration in Monroe City, Michigan is 67.679 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Monroe City, Michigan is 0.2 ppm.
Currently, Monroe City, Michigan has a sulfur dioxide (SO2) concentration of 1.385 ppb.
The current ozone (O3) level in Monroe City, Michigan at the moment is 14.39 ppm.
Nitrogen dioxide (NO2) level in Monroe City, Michigan at the moment is 11.374 ppb.
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