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)
39
Good
Monroe City, Michigan
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.06 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.18 μg/m³
0
55
155
255
425
605+
42.08 ppb
0
55
71
86
201
201+
1.47 ppb
0
36
76
186
605
1005+
5.97 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Monroe City, Michigan
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AQI 39
Good
7.06μg/m³
PM2.5
28.18μg/m³
PM10
42.08ppb
O3
1.47ppb
SO2
5.97ppb
NO2
0.20ppm
CO
AQI 39
Good
7.06μg/m³
PM2.5
28.18μg/m³
PM10
42.08ppb
O3
1.47ppb
SO2
5.97ppb
NO2
0.20ppm
CO
AQI 38
Good
6.69μg/m³
PM2.5
35.95μg/m³
PM10
40.34ppb
O3
1.45ppb
SO2
6.16ppb
NO2
0.21ppm
CO
AQI 37
Good
5.46μg/m³
PM2.5
17.61μg/m³
PM10
40.40ppb
O3
1.40ppb
SO2
6.87ppb
NO2
0.21ppm
CO
AQI 44
Good
7.74μg/m³
PM2.5
28.60μg/m³
PM10
41.73ppb
O3
1.08ppb
SO2
5.21ppb
NO2
0.21ppm
CO
AQI 37
Good
5.46μg/m³
PM2.5
17.61μg/m³
PM10
40.40ppb
O3
1.40ppb
SO2
6.87ppb
NO2
0.21ppm
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 10:00:00 on 2026-03-09.
In the last 24 hours, the best air quality in Monroe City, Michigan was observed at 03:00:00 on 2026-03-09.
As of now, the AQI in Monroe City, Michigan is 39, indicating Good conditions.
Monroe City, Michigan air has the highest levels of O3.
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 7.059 μg/m3.
The PM10 concentration in Monroe City, Michigan is 28.178 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Monroe City, Michigan is 0.205 ppm.
Currently, Monroe City, Michigan has a sulfur dioxide (SO2) concentration of 1.465 ppb.
The current ozone (O3) level in Monroe City, Michigan at the moment is 42.076 ppm.
Nitrogen dioxide (NO2) level in Monroe City, Michigan at the moment is 5.967 ppb.
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