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

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.69 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
38.54 μg/m³
0
55
155
255
425
605+
57.97 ppb
0
55
71
86
201
201+
0.57 ppb
0
36
76
186
605
1005+
8.74 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Reisterstown, Maryland
Reisterstown, Maryland
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AQI 61
Moderate
11.03μg/m³
PM2.5
36.97μg/m³
PM10
58.27ppb
O3
0.59ppb
SO2
15.48ppb
NO2
0.26ppm
CO
AQI 64
Moderate
10.84μg/m³
PM2.5
33.55μg/m³
PM10
58.89ppb
O3
0.59ppb
SO2
16.61ppb
NO2
0.26ppm
CO
AQI 64
Moderate
10.86μg/m³
PM2.5
35.17μg/m³
PM10
58.75ppb
O3
0.59ppb
SO2
15.66ppb
NO2
0.27ppm
CO
AQI 49
Good
8.76μg/m³
PM2.5
30.88μg/m³
PM10
49.76ppb
O3
0.60ppb
SO2
11.56ppb
NO2
0.27ppm
CO
AQI 64
Moderate
10.88μg/m³
PM2.5
33.43μg/m³
PM10
58.90ppb
O3
0.59ppb
SO2
16.71ppb
NO2
0.26ppm
CO
AQI 64
Moderate
10.79μg/m³
PM2.5
32.74μg/m³
PM10
58.90ppb
O3
0.59ppb
SO2
16.84ppb
NO2
0.26ppm
CO
Air quality and pollutant data for Maryland, 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 Reisterstown, Maryland is updated every hour for accuracy.
In the past 24 hours, the air quality in Reisterstown, Maryland was at its worst at 11:00:00 on 2026-04-23.
In the last 24 hours, the best air quality in Reisterstown, Maryland was observed at 02:00:00 on 2026-04-23.
As of now, the AQI in Reisterstown, Maryland is 61, indicating Moderate conditions.
Reisterstown, Maryland air has the highest levels of O3.
Poor air quality in Reisterstown, Maryland means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Reisterstown, Maryland are currently 8.694 μg/m3.
The PM10 concentration in Reisterstown, Maryland is 38.539 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Reisterstown, Maryland is 0.258 ppm.
Currently, Reisterstown, Maryland has a sulfur dioxide (SO2) concentration of 0.567 ppb.
The current ozone (O3) level in Reisterstown, Maryland at the moment is 57.974 ppm.
Nitrogen dioxide (NO2) level in Reisterstown, Maryland at the moment is 8.737 ppb.
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