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)
61
Moderate
Middle River, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.97 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.52 μg/m³
0
55
155
255
425
605+
57.94 ppb
0
55
71
86
201
201+
0.67 ppb
0
36
76
186
605
1005+
11.12 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Middle River, Maryland
Middle River, Maryland
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AQI 61
Moderate
12.08μg/m³
PM2.5
26.37μg/m³
PM10
57.98ppb
O3
0.69ppb
SO2
11.25ppb
NO2
0.25ppm
CO
AQI 61
Moderate
12.25μg/m³
PM2.5
34.58μg/m³
PM10
58.09ppb
O3
0.67ppb
SO2
11.03ppb
NO2
0.25ppm
CO
AQI 61
Moderate
11.65μg/m³
PM2.5
37.84μg/m³
PM10
57.82ppb
O3
0.63ppb
SO2
10.89ppb
NO2
0.25ppm
CO
AQI 61
Moderate
12.22μg/m³
PM2.5
31.94μg/m³
PM10
58.06ppb
O3
0.68ppb
SO2
11.10ppb
NO2
0.25ppm
CO
AQI 61
Moderate
12.25μg/m³
PM2.5
34.58μg/m³
PM10
58.09ppb
O3
0.67ppb
SO2
11.03ppb
NO2
0.25ppm
CO
AQI 61
Moderate
11.02μg/m³
PM2.5
37.10μg/m³
PM10
58.00ppb
O3
0.59ppb
SO2
10.94ppb
NO2
0.25ppm
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 10:00:00 on 2026-04-23.
The best air quality in Middle River, Maryland was recorded at 02:00:00 on 2026-04-23.
The real-time air quality index in Middle River, Maryland is 61, currently categorized as Moderate.
The most common pollutant in Middle River, Maryland is O3.
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 11.969 μg/m3.
The current PM10 levels in Middle River, Maryland are 30.517 μg/m3.
The current carbon monoxide (CO) level in Middle River, Maryland is 0.254 ppm.
The current sulfur dioxide (SO2) levels in Middle River, Maryland are 0.671 ppb.
The current ozone (O3) levels at Middle River, Maryland is 57.935 ppm.
The current nitrogen dioxide (NO2) levels at Middle River, Maryland is 11.115 ppb.
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