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)
27
Good
Monroe City, Michigan
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
25.35 μg/m³
0
55
155
255
425
605+
27.52 ppb
0
55
71
86
201
201+
0.62 ppb
0
36
76
186
605
1005+
7.34 ppb
0
54
101
361
1250
2050+
0.19 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 27
Good
5.25μg/m³
PM2.5
25.35μg/m³
PM10
27.52ppb
O3
0.62ppb
SO2
7.34ppb
NO2
0.19ppm
CO
AQI 27
Good
5.25μg/m³
PM2.5
25.35μg/m³
PM10
27.52ppb
O3
0.62ppb
SO2
7.34ppb
NO2
0.19ppm
CO
AQI 28
Good
5.19μg/m³
PM2.5
24.95μg/m³
PM10
29.76ppb
O3
0.61ppb
SO2
7.28ppb
NO2
0.20ppm
CO
AQI 31
Good
5.39μg/m³
PM2.5
23.74μg/m³
PM10
32.68ppb
O3
0.57ppb
SO2
7.88ppb
NO2
0.20ppm
CO
AQI 27
Good
5.18μg/m³
PM2.5
22.77μg/m³
PM10
27.40ppb
O3
0.76ppb
SO2
7.32ppb
NO2
0.19ppm
CO
AQI 31
Good
5.39μg/m³
PM2.5
23.74μg/m³
PM10
32.68ppb
O3
0.57ppb
SO2
7.88ppb
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 02:00:00 on 2026-01-22.
In the last 24 hours, the best air quality in Monroe City, Michigan was observed at 04:00:00 on 2026-01-23.
As of now, the AQI in Monroe City, Michigan is 27, indicating Good 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 5.254 μg/m3.
The PM10 concentration in Monroe City, Michigan is 25.348 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Monroe City, Michigan is 0.193 ppm.
Currently, Monroe City, Michigan has a sulfur dioxide (SO2) concentration of 0.618 ppb.
The current ozone (O3) level in Monroe City, Michigan at the moment is 27.523 ppm.
Nitrogen dioxide (NO2) level in Monroe City, Michigan at the moment is 7.343 ppb.
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