Stay updated with real-time air quality in Middle River, Maryland 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)
77
Moderate
Middle River, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
23.08 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
42.27 μg/m³
0
55
155
255
425
605+
6.02 ppb
0
55
71
86
201
201+
0.83 ppb
0
36
76
186
605
1005+
22.07 ppb
0
54
101
361
1250
2050+
0.40 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Middle River, Maryland
Middle River, Maryland
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AQI 79
Moderate
23.94μg/m³
PM2.5
34.36μg/m³
PM10
6.01ppb
O3
0.88ppb
SO2
22.35ppb
NO2
0.40ppm
CO
AQI 77
Moderate
22.56μg/m³
PM2.5
47.08μg/m³
PM10
6.14ppb
O3
0.80ppb
SO2
22.53ppb
NO2
0.40ppm
CO
AQI 73
Moderate
21.34μg/m³
PM2.5
57.42μg/m³
PM10
5.99ppb
O3
0.72ppb
SO2
21.09ppb
NO2
0.40ppm
CO
AQI 77
Moderate
23.05μg/m³
PM2.5
42.76μg/m³
PM10
6.10ppb
O3
0.83ppb
SO2
22.56ppb
NO2
0.40ppm
CO
AQI 77
Moderate
22.56μg/m³
PM2.5
47.08μg/m³
PM10
6.14ppb
O3
0.80ppb
SO2
22.53ppb
NO2
0.40ppm
CO
AQI 73
Moderate
21.23μg/m³
PM2.5
61.27μg/m³
PM10
5.80ppb
O3
0.69ppb
SO2
20.42ppb
NO2
0.40ppm
CO
Air quality measurements for Maryland, 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 Middle River, Maryland is updated on an hourly basis.
The worst air quality in Middle River, Maryland was recorded at 04:00:00 on 2025-12-06.
The best air quality in Middle River, Maryland was recorded at 11:00:00 on 2025-12-06.
The real-time air quality index in Middle River, Maryland is 77, currently categorized as Moderate.
The most common pollutant in Middle River, Maryland is PM2.5.
If the air quality in Middle River, Maryland is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Middle River, Maryland at present are 23.078 μg/m3.
The current PM10 levels in Middle River, Maryland are 42.265 μg/m3.
The current carbon monoxide (CO) level in Middle River, Maryland is 0.4 ppm.
The current sulfur dioxide (SO2) levels in Middle River, Maryland are 0.829 ppb.
The current ozone (O3) levels at Middle River, Maryland is 6.017 ppm.
The current nitrogen dioxide (NO2) levels at Middle River, Maryland is 22.068 ppb.
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