Real-time air quality index in Arnold, Maryland today
Stay updated with real-time air quality in Arnold, 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
Arnold, Maryland
Last updated: ... (Local time)
Common air pollutants in Arnold, Maryland
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
5.46 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
20.19 μg/m³
0
55
155
255
425
605+
Ozone (O3)
51.96 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.28 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
3.93 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
Arnold, Maryland
Arnold, Maryland
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Arnold, Maryland air quality map: Real-time AQI near you
Air quality in nearby cities
Severna Park, Maryland
AQI 50
Good
4.35μg/m³
PM2.5
16.04μg/m³
PM10
53.72ppb
O3
0.26ppb
SO2
2.92ppb
NO2
0.15ppm
CO
Annapolis, Maryland
AQI 49
Good
4.94μg/m³
PM2.5
18.88μg/m³
PM10
53.02ppb
O3
0.29ppb
SO2
2.85ppb
NO2
0.15ppm
CO
Parole, Maryland
AQI 49
Good
4.18μg/m³
PM2.5
16.01μg/m³
PM10
52.64ppb
O3
0.29ppb
SO2
2.81ppb
NO2
0.15ppm
CO
Lake Shore, Maryland
AQI 50
Good
4.58μg/m³
PM2.5
14.45μg/m³
PM10
53.86ppb
O3
0.25ppb
SO2
2.92ppb
NO2
0.15ppm
CO
Annapolis Neck, Maryland
AQI 49
Good
4.94μg/m³
PM2.5
18.88μg/m³
PM10
53.02ppb
O3
0.29ppb
SO2
2.85ppb
NO2
0.15ppm
CO
Pasadena, Maryland
AQI 46
Good
4.64μg/m³
PM2.5
19.37μg/m³
PM10
50.36ppb
O3
0.23ppb
SO2
2.52ppb
NO2
0.14ppm
CO
How accurate is Maryland, USA air quality data?
Air quality measurements for Maryland, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Frequently asked questions
How frequently is the air quality data for Arnold, Maryland updated?
Air quality data for Arnold, Maryland is updated on an hourly basis.
When did Arnold, Maryland experience the worst air quality in the last 24 hours?
The worst air quality in Arnold, Maryland was recorded at 09:00:00 on 2026-07-23.
When did Arnold, Maryland have its best air quality in the last 24 hours?
The best air quality in Arnold, Maryland was recorded at 12:00:00 on 2026-07-23.
What is the real-time air quality index for Arnold, Maryland?
The real-time air quality index in Arnold, Maryland is 48, currently categorized as Good.
Which pollutant is found most often in Arnold, Maryland?
The most common pollutant in Arnold, Maryland is O3.
What can I do if the air quality in Arnold, Maryland is poor?
If the air quality in Arnold, Maryland is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Arnold, Maryland?
The measured PM2.5 levels in Arnold, Maryland at present are 5.464 μg/m3.
What are the current PM10 levels at Arnold, Maryland?
The current PM10 levels in Arnold, Maryland are 20.187 μg/m3.
What are the current carbon monoxide (CO) levels at Arnold, Maryland?
The current carbon monoxide (CO) level in Arnold, Maryland is 0.171 ppm.
What are the current sulfur dioxide (SO2) levels at Arnold, Maryland?
The current sulfur dioxide (SO2) levels in Arnold, Maryland are 0.279 ppb.
What are the current ozone (O3) levels at Arnold, Maryland?
The current ozone (O3) levels at Arnold, Maryland is 51.963 ppm.
What are the current nitrogen dioxide (NO2) levels at Arnold, Maryland?
The current nitrogen dioxide (NO2) levels at Arnold, Maryland is 3.934 ppb.
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