Stay updated with real-time air quality in Columbia, 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)
66
Moderate
Columbia, Maryland
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
16.69 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
73.13 μg/m³
0
55
155
255
425
605+
56.99 ppb
0
55
71
86
201
201+
0.26 ppb
0
36
76
186
605
1005+
3.80 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Columbia, Maryland
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AQI 66
Moderate
17.45μg/m³
PM2.5
76.77μg/m³
PM10
58.37ppb
O3
0.26ppb
SO2
3.78ppb
NO2
0.30ppm
CO
AQI 64
Moderate
15.74μg/m³
PM2.5
69.40μg/m³
PM10
56.64ppb
O3
0.25ppb
SO2
3.23ppb
NO2
0.25ppm
CO
AQI 64
Moderate
16.42μg/m³
PM2.5
73.53μg/m³
PM10
54.95ppb
O3
0.27ppb
SO2
4.37ppb
NO2
0.23ppm
CO
AQI 64
Moderate
16.33μg/m³
PM2.5
73.44μg/m³
PM10
54.88ppb
O3
0.27ppb
SO2
4.30ppb
NO2
0.23ppm
CO
AQI 73
Moderate
21.45μg/m³
PM2.5
87.04μg/m³
PM10
57.03ppb
O3
0.28ppb
SO2
4.36ppb
NO2
0.23ppm
CO
AQI 62
Moderate
14.72μg/m³
PM2.5
64.95μg/m³
PM10
55.37ppb
O3
0.24ppb
SO2
2.90ppb
NO2
0.22ppm
CO
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
Air quality data for Columbia, Maryland is updated on an hourly basis.
The worst air quality in Columbia, Maryland was recorded at 09:00:00 on 2025-06-04.
The best air quality in Columbia, Maryland was recorded at 03:00:00 on 2025-06-05.
The real-time air quality index in Columbia, Maryland is 66, currently categorized as Moderate.
The most common pollutant in Columbia, Maryland is PM2.5.
If the air quality in Columbia, Maryland is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Columbia, Maryland at present are 16.687 μg/m3.
The current PM10 levels in Columbia, Maryland are 73.127 μg/m3.
The current carbon monoxide (CO) level in Columbia, Maryland is 0.263 ppm.
The current sulfur dioxide (SO2) levels in Columbia, Maryland are 0.258 ppb.
The current ozone (O3) levels at Columbia, Maryland is 56.994 ppm.
The current nitrogen dioxide (NO2) levels at Columbia, Maryland is 3.797 ppb.
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