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)
49
Good
Monroe City, Michigan
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.06 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
46.88 μg/m³
0
55
155
255
425
605+
50.38 ppb
0
55
71
86
201
201+
0.49 ppb
0
36
76
186
605
1005+
6.25 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Monroe City, Michigan
Monroe City, Michigan
Scroll To Air Quality MapLoading...
AQI 49
Good
9.06μg/m³
PM2.5
46.88μg/m³
PM10
50.38ppb
O3
0.49ppb
SO2
6.25ppb
NO2
0.24ppm
CO
AQI 49
Good
9.06μg/m³
PM2.5
46.88μg/m³
PM10
50.38ppb
O3
0.49ppb
SO2
6.25ppb
NO2
0.24ppm
CO
AQI 49
Good
8.64μg/m³
PM2.5
36.69μg/m³
PM10
53.31ppb
O3
0.49ppb
SO2
3.55ppb
NO2
0.25ppm
CO
AQI 49
Good
8.69μg/m³
PM2.5
32.49μg/m³
PM10
52.23ppb
O3
0.48ppb
SO2
3.83ppb
NO2
0.23ppm
CO
AQI 51
Moderate
8.99μg/m³
PM2.5
37.94μg/m³
PM10
55.39ppb
O3
0.50ppb
SO2
6.41ppb
NO2
0.25ppm
CO
AQI 49
Good
8.69μg/m³
PM2.5
32.49μg/m³
PM10
52.23ppb
O3
0.48ppb
SO2
3.83ppb
NO2
0.23ppm
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 2026-04-23.
In the last 24 hours, the best air quality in Monroe City, Michigan was observed at 07:00:00 on 2026-04-23.
As of now, the AQI in Monroe City, Michigan is 49, 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 9.058 μg/m3.
The PM10 concentration in Monroe City, Michigan is 46.879 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Monroe City, Michigan is 0.24 ppm.
Currently, Monroe City, Michigan has a sulfur dioxide (SO2) concentration of 0.495 ppb.
The current ozone (O3) level in Monroe City, Michigan at the moment is 50.38 ppm.
Nitrogen dioxide (NO2) level in Monroe City, Michigan at the moment is 6.253 ppb.
All Rights Reserved © Ambee Inc. 2025