Essex, Maryland live air quality index now
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)
45
Good
Essex, Maryland
Last updated: ... (Local time)
Major air pollutants in Essex, Maryland
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
3.53 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
13.99 μg/m³
0
55
155
255
425
605+
Ozone (O3)
49.11 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.11 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
2.89 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Essex, Maryland
Essex, Maryland
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Air quality in nearby cities
Rosedale, Maryland
AQI 46
Good
3.82μg/m³
PM2.5
15.67μg/m³
PM10
49.53ppb
O3
0.13ppb
SO2
2.81ppb
NO2
0.17ppm
CO
Middle River, Maryland
AQI 45
Good
3.71μg/m³
PM2.5
15.07μg/m³
PM10
49.42ppb
O3
0.13ppb
SO2
2.88ppb
NO2
0.17ppm
CO
Rossville, Maryland
AQI 46
Good
3.95μg/m³
PM2.5
16.40μg/m³
PM10
49.73ppb
O3
0.14ppb
SO2
2.79ppb
NO2
0.17ppm
CO
Overlea, Maryland
AQI 46
Good
3.95μg/m³
PM2.5
16.40μg/m³
PM10
49.73ppb
O3
0.14ppb
SO2
2.79ppb
NO2
0.17ppm
CO
Dundalk, Maryland
AQI 46
Good
3.96μg/m³
PM2.5
16.52μg/m³
PM10
49.87ppb
O3
0.15ppb
SO2
2.80ppb
NO2
0.17ppm
CO
White Marsh, Maryland
AQI 46
Good
3.95μg/m³
PM2.5
16.75μg/m³
PM10
49.93ppb
O3
0.16ppb
SO2
2.90ppb
NO2
0.17ppm
CO
How accurate is Maryland, USA air quality data?
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
Frequently asked questions
How often is the air quality data for Essex, Maryland updated?
The air quality for Essex, Maryland is updated every hour.
When was the worst air quality at Essex, Maryland in the last 24 hrs?
The worst air quality in Essex, Maryland in the last 24 hours was observed at 10:00:00 on 2026-07-23.
When was the best air quality at Essex, Maryland in the last 24 hrs?
In the last 24 hrs, the best air quality in Essex, Maryland was observed at 01:00:00 on 2026-07-23.
What is the current air quality in Essex, Maryland?
The current air quality in Essex, Maryland is 45, categorized as Good based on real-time data.
What pollutant is the most common in Essex, Maryland?
The most common pollutant in Essex, Maryland is O3.
What should I do if the air quality in Essex, Maryland is poor?
If the air quality in Essex, Maryland is poor, consider staying indoors and wearing a mask to protect yourself.
What is the current concentration of PM2.5 in Essex, Maryland?
The current PM2.5 concentration at Essex, Maryland is 3.532 μg/m3.
What is the current concentration of PM10 in Essex, Maryland?
The current PM10 concentration at Essex, Maryland is 13.99 μg/m3.
What is the current concentration of carbon monoxide (CO) in Essex, Maryland?
The current carbon monoxide (CO) concentration at Essex, Maryland is 0.167 ppm.
What is the current concentration of sulfur dioxide (SO2) in Essex, Maryland?
The current sulfur dioxide (SO2) concentration at Essex, Maryland is 0.106 ppb.
What is the current concentration of ozone (O3) in Essex, Maryland?
The current ozone (O3) concentration at Essex, Maryland is 49.107 ppm.
What is the current concentration of nitrogen dioxide (NO2) in Essex, Maryland?
The current nitrogen dioxide (NO2) concentration at Essex, Maryland is 2.891 ppb.
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