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)
44
Good
Portsmouth, Ohio
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
7.74 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.97 μg/m³
0
55
155
255
425
605+
28.54 ppb
0
55
71
86
201
201+
2.27 ppb
0
36
76
186
605
1005+
5.59 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Portsmouth, Ohio
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AQI 52
Moderate
9.59μg/m³
PM2.5
40.89μg/m³
PM10
29.88ppb
O3
1.16ppb
SO2
5.77ppb
NO2
0.20ppm
CO
AQI 52
Moderate
10.01μg/m³
PM2.5
44.08μg/m³
PM10
28.42ppb
O3
1.16ppb
SO2
5.35ppb
NO2
0.22ppm
CO
AQI 54
Moderate
10.73μg/m³
PM2.5
38.41μg/m³
PM10
40.13ppb
O3
7.94ppb
SO2
5.58ppb
NO2
0.22ppm
CO
AQI 52
Moderate
10.14μg/m³
PM2.5
38.55μg/m³
PM10
30.86ppb
O3
1.19ppb
SO2
5.68ppb
NO2
0.22ppm
CO
AQI 33
Good
6.20μg/m³
PM2.5
25.64μg/m³
PM10
31.43ppb
O3
1.18ppb
SO2
6.60ppb
NO2
0.23ppm
CO
AQI 44
Good
7.86μg/m³
PM2.5
28.96μg/m³
PM10
29.38ppb
O3
1.23ppb
SO2
6.00ppb
NO2
0.21ppm
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 09:00:00, 2025-07-20.
The best air quality in Portsmouth, Ohio was observed at 10:00:00 on 2025-07-20.
The air quality in Portsmouth, Ohio right now is Moderate, with an AQI of 58.
In Portsmouth, Ohio, PM2.5 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 12.854 μg/m3.
Portsmouth, Ohio currently has a PM10 concentration of 29.352 μg/m3.
The current carbon monoxide (CO) level in Portsmouth, Ohio is 0.196 ppm.
The current sulfur dioxide (SO2) concentration in Portsmouth, Ohio is 1.623 ppb.
Portsmouth, Ohio currently has an ozone (O3) concentration of 34.23 ppm.
The current level of nitrogen dioxide (NO2) in Portsmouth, Ohio is 5.87 ppb.
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