Stay updated with real-time air quality in Monroe, North Carolina 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)
44
Good
Monroe, North Carolina
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.97 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
35.02 μg/m³
0
55
155
255
425
605+
39.33 ppb
0
55
71
86
201
201+
0.88 ppb
0
36
76
186
605
1005+
4.14 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Monroe, North Carolina
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AQI 49
Good
9.45μg/m³
PM2.5
39.39μg/m³
PM10
49.85ppb
O3
0.26ppb
SO2
12.77ppb
NO2
0.31ppm
CO
AQI 47
Good
8.36μg/m³
PM2.5
39.18μg/m³
PM10
50.73ppb
O3
0.24ppb
SO2
14.27ppb
NO2
0.31ppm
CO
AQI 47
Good
7.34μg/m³
PM2.5
30.80μg/m³
PM10
50.67ppb
O3
0.33ppb
SO2
13.16ppb
NO2
0.31ppm
CO
AQI 45
Good
7.84μg/m³
PM2.5
30.70μg/m³
PM10
48.79ppb
O3
0.28ppb
SO2
11.84ppb
NO2
0.31ppm
CO
AQI 47
Good
8.36μg/m³
PM2.5
39.18μg/m³
PM10
50.73ppb
O3
0.24ppb
SO2
14.27ppb
NO2
0.31ppm
CO
AQI 49
Good
9.44μg/m³
PM2.5
27.96μg/m³
PM10
53.06ppb
O3
0.15ppb
SO2
15.45ppb
NO2
0.30ppm
CO
Air quality measurements for North Carolina, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Monroe, North Carolina is updated on an hourly basis.
The worst air quality in Monroe, North Carolina was recorded at 09:00:00 on 2026-04-23.
The best air quality in Monroe, North Carolina was recorded at 01:00:00 on 2026-04-24.
The real-time air quality index in Monroe, North Carolina is 44, currently categorized as Good.
The most common pollutant in Monroe, North Carolina is PM2.5.
If the air quality in Monroe, North Carolina is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Monroe, North Carolina at present are 7.968 μg/m3.
The current PM10 levels in Monroe, North Carolina are 35.017 μg/m3.
The current carbon monoxide (CO) level in Monroe, North Carolina is 0.21 ppm.
The current sulfur dioxide (SO2) levels in Monroe, North Carolina are 0.876 ppb.
The current ozone (O3) levels at Monroe, North Carolina is 39.325 ppm.
The current nitrogen dioxide (NO2) levels at Monroe, North Carolina is 4.136 ppb.
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