Stay updated with real-time air quality in Essex, 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)
61
Moderate
Essex, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
12.08 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.37 μg/m³
0
55
155
255
425
605+
57.98 ppb
0
55
71
86
201
201+
0.69 ppb
0
36
76
186
605
1005+
11.25 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Essex, Maryland
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AQI 61
Moderate
12.22μg/m³
PM2.5
31.94μg/m³
PM10
58.06ppb
O3
0.68ppb
SO2
11.10ppb
NO2
0.25ppm
CO
AQI 61
Moderate
11.97μg/m³
PM2.5
30.52μg/m³
PM10
57.94ppb
O3
0.67ppb
SO2
11.12ppb
NO2
0.25ppm
CO
AQI 61
Moderate
12.25μg/m³
PM2.5
34.58μg/m³
PM10
58.09ppb
O3
0.67ppb
SO2
11.03ppb
NO2
0.25ppm
CO
AQI 61
Moderate
12.25μg/m³
PM2.5
34.58μg/m³
PM10
58.09ppb
O3
0.67ppb
SO2
11.03ppb
NO2
0.25ppm
CO
AQI 61
Moderate
12.08μg/m³
PM2.5
35.24μg/m³
PM10
57.86ppb
O3
0.66ppb
SO2
10.86ppb
NO2
0.26ppm
CO
AQI 61
Moderate
11.65μg/m³
PM2.5
37.84μg/m³
PM10
57.82ppb
O3
0.63ppb
SO2
10.89ppb
NO2
0.25ppm
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 Essex, Maryland is updated every hour.
The worst air quality in Essex, Maryland in the last 24 hours was observed at 10:00:00 on 2026-04-23.
In the last 24 hrs, the best air quality in Essex, Maryland was observed at 03:00:00 on 2026-04-23.
The current air quality in Essex, Maryland is 61, categorized as Moderate based on real-time data.
The most common pollutant in Essex, Maryland is O3.
If the air quality in Essex, Maryland is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Essex, Maryland is 12.078 μg/m3.
The current PM10 concentration at Essex, Maryland is 26.367 μg/m3.
The current carbon monoxide (CO) concentration at Essex, Maryland is 0.253 ppm.
The current sulfur dioxide (SO2) concentration at Essex, Maryland is 0.693 ppb.
The current ozone (O3) concentration at Essex, Maryland is 57.985 ppm.
The current nitrogen dioxide (NO2) concentration at Essex, Maryland is 11.251 ppb.
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