Stay updated with real-time air quality in Havre De Grace, 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)
33
Good
Havre De Grace, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.06 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.60 μg/m³
0
55
155
255
425
605+
36.38 ppb
0
55
71
86
201
201+
0.16 ppb
0
36
76
186
605
1005+
4.23 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Havre De Grace, Maryland
Havre De Grace, Maryland
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AQI 34
Good
3.14μg/m³
PM2.5
10.49μg/m³
PM10
37.42ppb
O3
0.28ppb
SO2
4.01ppb
NO2
0.14ppm
CO
AQI 34
Good
3.48μg/m³
PM2.5
14.54μg/m³
PM10
37.39ppb
O3
0.26ppb
SO2
4.11ppb
NO2
0.14ppm
CO
AQI 32
Good
3.09μg/m³
PM2.5
13.49μg/m³
PM10
34.87ppb
O3
0.24ppb
SO2
3.95ppb
NO2
0.13ppm
CO
AQI 31
Good
3.30μg/m³
PM2.5
15.57μg/m³
PM10
34.32ppb
O3
0.25ppb
SO2
4.17ppb
NO2
0.13ppm
CO
AQI 31
Good
3.29μg/m³
PM2.5
14.90μg/m³
PM10
34.05ppb
O3
0.24ppb
SO2
3.97ppb
NO2
0.13ppm
CO
AQI 32
Good
3.29μg/m³
PM2.5
13.96μg/m³
PM10
35.34ppb
O3
0.31ppb
SO2
7.31ppb
NO2
0.21ppm
CO
The air quality data for Maryland, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Havre De Grace, Maryland are available every hour.
Havre De Grace, Maryland experienced its worst air quality at 02:00:00, 2026-10-22.
The best air quality in Havre De Grace, Maryland was observed at 11:00:00 on 2026-10-22.
The air quality in Havre De Grace, Maryland right now is Good, with an AQI of 33.
In Havre De Grace, Maryland, O3 is the most frequently found pollutant.
When air quality in Havre De Grace, Maryland is compromised, staying indoors and wearing a mask can reduce health risks.
Havre De Grace, Maryland currently has a PM2.5 concentration of 3.064 μg/m3.
Havre De Grace, Maryland currently has a PM10 concentration of 14.602 μg/m3.
The current carbon monoxide (CO) level in Havre De Grace, Maryland is 0.14 ppm.
The current sulfur dioxide (SO2) concentration in Havre De Grace, Maryland is 0.16 ppb.
Havre De Grace, Maryland currently has an ozone (O3) concentration of 36.381 ppm.
The current level of nitrogen dioxide (NO2) in Havre De Grace, Maryland is 4.234 ppb.
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