Stay updated with real-time air quality in Baltimore, 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)
37
Good
Baltimore, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.79 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.02 μg/m³
0
55
155
255
425
605+
39.60 ppb
0
55
71
86
201
201+
0.32 ppb
0
36
76
186
605
1005+
2.85 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Baltimore, Maryland
Baltimore, Maryland
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AQI 38
Good
2.47μg/m³
PM2.5
9.68μg/m³
PM10
41.47ppb
O3
0.33ppb
SO2
3.73ppb
NO2
0.13ppm
CO
AQI 35
Good
2.20μg/m³
PM2.5
11.81μg/m³
PM10
38.02ppb
O3
0.33ppb
SO2
3.19ppb
NO2
0.14ppm
CO
AQI 36
Good
2.16μg/m³
PM2.5
10.96μg/m³
PM10
38.60ppb
O3
0.33ppb
SO2
3.11ppb
NO2
0.14ppm
CO
AQI 41
Good
2.40μg/m³
PM2.5
8.61μg/m³
PM10
43.69ppb
O3
0.32ppb
SO2
3.14ppb
NO2
0.13ppm
CO
AQI 37
Good
2.67μg/m³
PM2.5
11.20μg/m³
PM10
40.05ppb
O3
0.34ppb
SO2
4.98ppb
NO2
0.13ppm
CO
AQI 36
Good
2.95μg/m³
PM2.5
12.78μg/m³
PM10
39.34ppb
O3
0.37ppb
SO2
7.05ppb
NO2
0.13ppm
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 Baltimore, Maryland is updated every hour for accuracy.
In the past 24 hours, the air quality in Baltimore, Maryland was at its worst at 08:00:00 on 2026-06-14.
In the last 24 hours, the best air quality in Baltimore, Maryland was observed at 07:00:00 on 2026-06-15.
As of now, the AQI in Baltimore, Maryland is 37, indicating Good conditions.
Baltimore, Maryland air has the highest levels of O3.
Poor air quality in Baltimore, Maryland means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Baltimore, Maryland are currently 2.084 μg/m3.
The PM10 concentration in Baltimore, Maryland is 8.559 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Baltimore, Maryland is 0.132 ppm.
Currently, Baltimore, Maryland has a sulfur dioxide (SO2) concentration of 0.328 ppb.
The current ozone (O3) level in Baltimore, Maryland at the moment is 39.671 ppm.
Nitrogen dioxide (NO2) level in Baltimore, Maryland at the moment is 2.973 ppb.
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