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)
48
Good
Essex, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.14 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.34 μg/m³
0
55
155
255
425
605+
51.82 ppb
0
55
71
86
201
201+
0.11 ppb
0
36
76
186
605
1005+
2.92 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Essex, Maryland
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AQI 45
Good
7.34μg/m³
PM2.5
38.98μg/m³
PM10
49.00ppb
O3
0.47ppb
SO2
3.10ppb
NO2
0.23ppm
CO
AQI 45
Good
7.13μg/m³
PM2.5
38.11μg/m³
PM10
48.91ppb
O3
0.47ppb
SO2
3.17ppb
NO2
0.23ppm
CO
AQI 45
Good
7.44μg/m³
PM2.5
38.82μg/m³
PM10
48.60ppb
O3
0.47ppb
SO2
3.15ppb
NO2
0.23ppm
CO
AQI 45
Good
7.44μg/m³
PM2.5
38.82μg/m³
PM10
48.60ppb
O3
0.47ppb
SO2
3.15ppb
NO2
0.23ppm
CO
AQI 44
Good
7.36μg/m³
PM2.5
38.28μg/m³
PM10
48.28ppb
O3
0.48ppb
SO2
3.23ppb
NO2
0.23ppm
CO
AQI 44
Good
7.16μg/m³
PM2.5
35.96μg/m³
PM10
47.28ppb
O3
0.50ppb
SO2
3.51ppb
NO2
0.23ppm
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 02:00:00 on 2026-06-12.
In the last 24 hrs, the best air quality in Essex, Maryland was observed at 11:00:00 on 2026-06-12.
The current air quality in Essex, Maryland is 48, categorized as Good 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 7.139 μg/m3.
The current PM10 concentration at Essex, Maryland is 30.335 μg/m3.
The current carbon monoxide (CO) concentration at Essex, Maryland is 0.255 ppm.
The current sulfur dioxide (SO2) concentration at Essex, Maryland is 0.109 ppb.
The current ozone (O3) concentration at Essex, Maryland is 51.823 ppm.
The current nitrogen dioxide (NO2) concentration at Essex, Maryland is 2.918 ppb.
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