Stay updated with real-time air quality in Portsmouth, 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)
46
Good
Portsmouth, Ohio
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
7.91 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
49.89 μg/m³
0
55
155
255
425
605+
34.40 ppb
0
55
71
86
201
201+
2.08 ppb
0
36
76
186
605
1005+
5.07 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Portsmouth, Ohio
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AQI 33
Good
5.28μg/m³
PM2.5
22.60μg/m³
PM10
35.66ppb
O3
1.51ppb
SO2
4.64ppb
NO2
0.14ppm
CO
AQI 31
Good
4.75μg/m³
PM2.5
20.55μg/m³
PM10
34.36ppb
O3
1.27ppb
SO2
4.63ppb
NO2
0.14ppm
CO
AQI 33
Good
5.39μg/m³
PM2.5
22.95μg/m³
PM10
35.98ppb
O3
2.11ppb
SO2
4.32ppb
NO2
0.12ppm
CO
AQI 33
Good
5.75μg/m³
PM2.5
26.05μg/m³
PM10
35.66ppb
O3
2.18ppb
SO2
4.69ppb
NO2
0.12ppm
CO
AQI 31
Good
3.17μg/m³
PM2.5
13.82μg/m³
PM10
33.31ppb
O3
2.00ppb
SO2
5.38ppb
NO2
0.12ppm
CO
AQI 31
Good
3.33μg/m³
PM2.5
12.27μg/m³
PM10
34.37ppb
O3
2.29ppb
SO2
5.04ppb
NO2
0.13ppm
CO
The air quality data for Ohio, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Portsmouth, Ohio are available every hour.
Portsmouth, Ohio experienced its worst air quality at 02:00:00, 2025-10-21.
The best air quality in Portsmouth, Ohio was observed at 01:00:00 on 2025-10-21.
The air quality in Portsmouth, Ohio right now is Good, with an AQI of 46.
In Portsmouth, Ohio, PM10 is the most frequently found pollutant.
When air quality in Portsmouth, Ohio is compromised, staying indoors and wearing a mask can reduce health risks.
Portsmouth, Ohio currently has a PM2.5 concentration of 7.908 μg/m3.
Portsmouth, Ohio currently has a PM10 concentration of 49.888 μg/m3.
The current carbon monoxide (CO) level in Portsmouth, Ohio is 0.138 ppm.
The current sulfur dioxide (SO2) concentration in Portsmouth, Ohio is 2.076 ppb.
Portsmouth, Ohio currently has an ozone (O3) concentration of 34.398 ppm.
The current level of nitrogen dioxide (NO2) in Portsmouth, Ohio is 5.073 ppb.
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