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)
25
Good
Reisterstown, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.39 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.14 μg/m³
0
55
155
255
425
605+
26.96 ppb
0
55
71
86
201
201+
0.35 ppb
0
36
76
186
605
1005+
5.31 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Reisterstown, Maryland
Reisterstown, Maryland
Scroll To Air Quality MapLoading...
AQI 28
Good
5.03μg/m³
PM2.5
21.14μg/m³
PM10
29.61ppb
O3
0.30ppb
SO2
15.36ppb
NO2
0.22ppm
CO
AQI 28
Good
5.02μg/m³
PM2.5
21.15μg/m³
PM10
29.57ppb
O3
0.30ppb
SO2
17.02ppb
NO2
0.22ppm
CO
AQI 27
Good
5.07μg/m³
PM2.5
21.23μg/m³
PM10
29.49ppb
O3
0.30ppb
SO2
15.92ppb
NO2
0.23ppm
CO
AQI 30
Good
4.74μg/m³
PM2.5
20.98μg/m³
PM10
31.53ppb
O3
0.35ppb
SO2
10.62ppb
NO2
0.23ppm
CO
AQI 28
Good
4.99μg/m³
PM2.5
20.96μg/m³
PM10
29.61ppb
O3
0.30ppb
SO2
17.05ppb
NO2
0.22ppm
CO
AQI 28
Good
5.01μg/m³
PM2.5
21.08μg/m³
PM10
29.63ppb
O3
0.30ppb
SO2
17.32ppb
NO2
0.22ppm
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 08:00:00 on 2026-06-07.
In the last 24 hours, the best air quality in Reisterstown, Maryland was observed at 10:00:00 on 2026-06-08.
As of now, the AQI in Reisterstown, Maryland is 33, indicating Good conditions.
Reisterstown, Maryland air has the highest levels of PM2.5.
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 6 μg/m3.
The PM10 concentration in Reisterstown, Maryland is 26.696 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Reisterstown, Maryland is 0.223 ppm.
Currently, Reisterstown, Maryland has a sulfur dioxide (SO2) concentration of 0.32 ppb.
The current ozone (O3) level in Reisterstown, Maryland at the moment is 24.186 ppm.
Nitrogen dioxide (NO2) level in Reisterstown, Maryland at the moment is 10.172 ppb.
All Rights Reserved © Ambee Inc. 2025