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)
38
Good
Reisterstown, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.12 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
32.88 μg/m³
0
55
155
255
425
605+
25.09 ppb
0
55
71
86
201
201+
0.48 ppb
0
36
76
186
605
1005+
8.14 ppb
0
54
101
361
1250
2050+
0.36 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Reisterstown, Maryland
Reisterstown, Maryland
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AQI 38
Good
7.38μg/m³
PM2.5
41.27μg/m³
PM10
20.72ppb
O3
0.46ppb
SO2
16.21ppb
NO2
0.35ppm
CO
AQI 44
Good
7.67μg/m³
PM2.5
44.50μg/m³
PM10
19.00ppb
O3
0.47ppb
SO2
18.57ppb
NO2
0.35ppm
CO
AQI 44
Good
7.59μg/m³
PM2.5
42.38μg/m³
PM10
19.50ppb
O3
0.46ppb
SO2
17.35ppb
NO2
0.35ppm
CO
AQI 43
Good
7.38μg/m³
PM2.5
46.28μg/m³
PM10
15.93ppb
O3
0.50ppb
SO2
9.66ppb
NO2
0.35ppm
CO
AQI 44
Good
7.70μg/m³
PM2.5
44.71μg/m³
PM10
19.18ppb
O3
0.46ppb
SO2
18.60ppb
NO2
0.35ppm
CO
AQI 44
Good
7.76μg/m³
PM2.5
45.34μg/m³
PM10
18.65ppb
O3
0.47ppb
SO2
19.00ppb
NO2
0.35ppm
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 07:00:00 on 2026-07-10.
In the last 24 hours, the best air quality in Reisterstown, Maryland was observed at 10:00:00 on 2026-07-10.
As of now, the AQI in Reisterstown, Maryland is 38, 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 7.117 μg/m3.
The PM10 concentration in Reisterstown, Maryland is 32.879 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Reisterstown, Maryland is 0.362 ppm.
Currently, Reisterstown, Maryland has a sulfur dioxide (SO2) concentration of 0.479 ppb.
The current ozone (O3) level in Reisterstown, Maryland at the moment is 25.091 ppm.
Nitrogen dioxide (NO2) level in Reisterstown, Maryland at the moment is 8.142 ppb.
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