Stay updated with real-time air quality in Randallstown, 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)
20
Good
Randallstown, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.33 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.92 μg/m³
0
55
155
255
425
605+
21.74 ppb
0
55
71
86
201
201+
0.73 ppb
0
36
76
186
605
1005+
9.37 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Very high
Randallstown, Maryland
Randallstown, Maryland
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AQI 27
Good
4.82μg/m³
PM2.5
22.69μg/m³
PM10
19.78ppb
O3
0.61ppb
SO2
14.40ppb
NO2
0.43ppm
CO
AQI 27
Good
4.83μg/m³
PM2.5
22.62μg/m³
PM10
19.84ppb
O3
0.61ppb
SO2
14.26ppb
NO2
0.43ppm
CO
AQI 27
Good
4.78μg/m³
PM2.5
21.95μg/m³
PM10
19.98ppb
O3
0.61ppb
SO2
13.61ppb
NO2
0.42ppm
CO
AQI 27
Good
4.83μg/m³
PM2.5
22.63μg/m³
PM10
19.83ppb
O3
0.61ppb
SO2
14.25ppb
NO2
0.43ppm
CO
AQI 27
Good
4.75μg/m³
PM2.5
21.98μg/m³
PM10
19.77ppb
O3
0.61ppb
SO2
13.79ppb
NO2
0.42ppm
CO
AQI 24
Good
3.19μg/m³
PM2.5
26.01μg/m³
PM10
20.16ppb
O3
0.62ppb
SO2
12.58ppb
NO2
0.39ppm
CO
The air quality data for Maryland, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Randallstown, Maryland are available every hour.
Randallstown, Maryland experienced its worst air quality at 04:00:00, 2026-01-22.
The best air quality in Randallstown, Maryland was observed at 02:00:00 on 2026-01-23.
The air quality in Randallstown, Maryland right now is Good, with an AQI of 27.
In Randallstown, Maryland, PM2.5 is the most frequently found pollutant.
When air quality in Randallstown, Maryland is compromised, staying indoors and wearing a mask can reduce health risks.
Randallstown, Maryland currently has a PM2.5 concentration of 4.765 μg/m3.
Randallstown, Maryland currently has a PM10 concentration of 22.188 μg/m3.
The current carbon monoxide (CO) level in Randallstown, Maryland is 0.414 ppm.
The current sulfur dioxide (SO2) concentration in Randallstown, Maryland is 0.61 ppb.
Randallstown, Maryland currently has an ozone (O3) concentration of 19.62 ppm.
The current level of nitrogen dioxide (NO2) in Randallstown, Maryland is 14.11 ppb.
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