Stay updated with real-time air quality in Annapolis, 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)
30
Good
Annapolis, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.96 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.45 μg/m³
0
55
155
255
425
605+
32.43 ppb
0
55
71
86
201
201+
0.18 ppb
0
36
76
186
605
1005+
3.49 ppb
0
54
101
361
1250
2050+
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Annapolis, Maryland
Annapolis, Maryland
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AQI 29
Good
2.63μg/m³
PM2.5
10.90μg/m³
PM10
30.87ppb
O3
0.16ppb
SO2
3.60ppb
NO2
0.10ppm
CO
AQI 31
Good
2.56μg/m³
PM2.5
10.05μg/m³
PM10
33.05ppb
O3
0.16ppb
SO2
3.62ppb
NO2
0.10ppm
CO
AQI 30
Good
3.42μg/m³
PM2.5
16.76μg/m³
PM10
32.49ppb
O3
0.18ppb
SO2
3.54ppb
NO2
0.11ppm
CO
AQI 32
Good
3.05μg/m³
PM2.5
14.56μg/m³
PM10
34.51ppb
O3
0.19ppb
SO2
3.72ppb
NO2
0.11ppm
CO
AQI 30
Good
3.23μg/m³
PM2.5
13.20μg/m³
PM10
32.39ppb
O3
0.19ppb
SO2
3.76ppb
NO2
0.11ppm
CO
AQI 31
Good
1.50μg/m³
PM2.5
8.92μg/m³
PM10
33.80ppb
O3
0.14ppb
SO2
3.21ppb
NO2
0.10ppm
CO
Air quality data and pollutant measurements for Maryland, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Annapolis, Maryland is updated every hour.
The worst air quality in Annapolis, Maryland in the last 24 hours was observed at 01:00:00 on 2026-10-22.
In the last 24 hrs, the best air quality in Annapolis, Maryland was observed at 03:00:00 on 2026-10-22.
The current air quality in Annapolis, Maryland is 30, categorized as Good based on real-time data.
The most common pollutant in Annapolis, Maryland is O3.
If the air quality in Annapolis, Maryland is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Annapolis, Maryland is 1.964 μg/m3.
The current PM10 concentration at Annapolis, Maryland is 12.447 μg/m3.
The current carbon monoxide (CO) concentration at Annapolis, Maryland is 0.1 ppm.
The current sulfur dioxide (SO2) concentration at Annapolis, Maryland is 0.179 ppb.
The current ozone (O3) concentration at Annapolis, Maryland is 32.426 ppm.
The current nitrogen dioxide (NO2) concentration at Annapolis, Maryland is 3.492 ppb.
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