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)
49
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)
8.97 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
18.18 μg/m³
0
55
155
255
425
605+
Ozone (O3)
11.10 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.46 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
17.50 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.45 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Arnold, Maryland
Arnold, Maryland
Scroll To Air Quality Map
Track live Arnold, Maryland air quality forecast and history
Arnold Loading...
Arnold, Maryland air quality map: Real-time AQI near you
Air quality in nearby cities
Severna Park, Maryland
AQI 34
Good
2.56μg/m³
PM2.5
9.65μg/m³
PM10
36.83ppb
O3
0.21ppb
SO2
3.52ppb
NO2
0.13ppm
CO
Annapolis, Maryland
AQI 31
Good
3.09μg/m³
PM2.5
14.04μg/m³
PM10
34.49ppb
O3
0.24ppb
SO2
2.09ppb
NO2
0.13ppm
CO
Parole, Maryland
AQI 32
Good
3.07μg/m³
PM2.5
14.06μg/m³
PM10
34.86ppb
O3
0.23ppb
SO2
2.24ppb
NO2
0.13ppm
CO
Lake Shore, Maryland
AQI 35
Good
2.48μg/m³
PM2.5
9.67μg/m³
PM10
37.56ppb
O3
0.22ppb
SO2
3.60ppb
NO2
0.13ppm
CO
Annapolis Neck, Maryland
AQI 31
Good
3.09μg/m³
PM2.5
14.04μg/m³
PM10
34.49ppb
O3
0.24ppb
SO2
2.09ppb
NO2
0.13ppm
CO
Pasadena, Maryland
AQI 34
Good
4.07μg/m³
PM2.5
20.64μg/m³
PM10
37.32ppb
O3
0.21ppb
SO2
3.51ppb
NO2
0.12ppm
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 05:00:00 on 2025-10-19.
When did Arnold, Maryland have its best air quality in the last 24 hours?
The best air quality in Arnold, Maryland was recorded at 06:00:00 on 2025-10-19.
What is the real-time air quality index for Arnold, Maryland?
The real-time air quality index in Arnold, Maryland is 35, 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 3.003 μg/m3.
What are the current PM10 levels at Arnold, Maryland?
The current PM10 levels in Arnold, Maryland are 12.27 μg/m3.
What are the current carbon monoxide (CO) levels at Arnold, Maryland?
The current carbon monoxide (CO) level in Arnold, Maryland is 0.129 ppm.
What are the current sulfur dioxide (SO2) levels at Arnold, Maryland?
The current sulfur dioxide (SO2) levels in Arnold, Maryland are 0.221 ppb.
What are the current ozone (O3) levels at Arnold, Maryland?
The current ozone (O3) levels at Arnold, Maryland is 37.88 ppm.
What are the current nitrogen dioxide (NO2) levels at Arnold, Maryland?
The current nitrogen dioxide (NO2) levels at Arnold, Maryland is 3.476 ppb.
All Rights Reserved © Ambee Inc. 2025