Stay updated with real-time air quality in Marietta, Ohio 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
Marietta, Ohio
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
16.62 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
65.68 μg/m³
0
55
155
255
425
605+
11.00 ppb
0
55
71
86
201
201+
1.20 ppb
0
36
76
186
605
1005+
6.58 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Marietta, Ohio
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AQI 62
Moderate
15.35μg/m³
PM2.5
58.01μg/m³
PM10
8.00ppb
O3
1.50ppb
SO2
7.59ppb
NO2
0.29ppm
CO
AQI 62
Moderate
15.15μg/m³
PM2.5
57.41μg/m³
PM10
10.27ppb
O3
1.47ppb
SO2
7.61ppb
NO2
0.29ppm
CO
AQI 58
Moderate
13.33μg/m³
PM2.5
42.67μg/m³
PM10
31.47ppb
O3
1.58ppb
SO2
7.21ppb
NO2
0.27ppm
CO
AQI 44
Good
8.41μg/m³
PM2.5
31.94μg/m³
PM10
27.74ppb
O3
1.50ppb
SO2
12.36ppb
NO2
0.30ppm
CO
AQI 71
Moderate
19.89μg/m³
PM2.5
62.53μg/m³
PM10
16.70ppb
O3
1.25ppb
SO2
8.77ppb
NO2
0.35ppm
CO
AQI 73
Moderate
20.86μg/m³
PM2.5
69.60μg/m³
PM10
32.43ppb
O3
1.27ppb
SO2
7.45ppb
NO2
0.28ppm
CO
Air quality data and pollutant measurements for Ohio, 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 Marietta, Ohio is updated every hour.
The worst air quality in Marietta, Ohio in the last 24 hours was observed at 03:00:00 on 2025-06-05.
In the last 24 hrs, the best air quality in Marietta, Ohio was observed at 02:00:00 on 2025-06-06.
The current air quality in Marietta, Ohio is 66, categorized as Moderate based on real-time data.
The most common pollutant in Marietta, Ohio is PM2.5.
If the air quality in Marietta, Ohio is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Marietta, Ohio is 16.62 μg/m3.
The current PM10 concentration at Marietta, Ohio is 65.678 μg/m3.
The current carbon monoxide (CO) concentration at Marietta, Ohio is 0.295 ppm.
The current sulfur dioxide (SO2) concentration at Marietta, Ohio is 1.201 ppb.
The current ozone (O3) concentration at Marietta, Ohio is 10.996 ppm.
The current nitrogen dioxide (NO2) concentration at Marietta, Ohio is 6.579 ppb.
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