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)
54
Moderate
Baltimore, Maryland
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
10.52 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
45.10 μg/m³
0
55
155
255
425
605+
27.24 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
11.79 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Baltimore, Maryland
Baltimore, Maryland
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AQI 52
Moderate
10.10μg/m³
PM2.5
44.91μg/m³
PM10
26.83ppb
O3
0.19ppb
SO2
13.23ppb
NO2
0.30ppm
CO
AQI 49
Good
9.10μg/m³
PM2.5
22.88μg/m³
PM10
29.50ppb
O3
0.20ppb
SO2
8.70ppb
NO2
0.30ppm
CO
AQI 49
Good
9.24μg/m³
PM2.5
27.27μg/m³
PM10
28.96ppb
O3
0.20ppb
SO2
9.22ppb
NO2
0.30ppm
CO
AQI 52
Moderate
9.57μg/m³
PM2.5
42.83μg/m³
PM10
25.23ppb
O3
0.19ppb
SO2
10.57ppb
NO2
0.29ppm
CO
AQI 52
Moderate
10.48μg/m³
PM2.5
45.86μg/m³
PM10
28.83ppb
O3
0.20ppb
SO2
16.58ppb
NO2
0.30ppm
CO
AQI 54
Moderate
10.84μg/m³
PM2.5
46.46μg/m³
PM10
31.48ppb
O3
0.20ppb
SO2
20.70ppb
NO2
0.30ppm
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 07:00:00 on 2025-06-05.
In the last 24 hours, the best air quality in Baltimore, Maryland was observed at 02:00:00 on 2025-06-06.
As of now, the AQI in Baltimore, Maryland is 54, indicating Moderate conditions.
Baltimore, Maryland air has the highest levels of PM2.5.
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 10.521 μg/m3.
The PM10 concentration in Baltimore, Maryland is 45.101 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Baltimore, Maryland is 0.296 ppm.
Currently, Baltimore, Maryland has a sulfur dioxide (SO2) concentration of 0.197 ppb.
The current ozone (O3) level in Baltimore, Maryland at the moment is 27.239 ppm.
Nitrogen dioxide (NO2) level in Baltimore, Maryland at the moment is 11.79 ppb.
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