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)
112
Unhealthy for sensitive groups
Portsmouth, Ohio
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
40.08 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
152.88 μg/m³
0
55
155
255
425
605+
35.62 ppb
0
55
71
86
201
201+
2.93 ppb
0
36
76
186
605
1005+
6.77 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 82
Moderate
26.13μg/m³
PM2.5
108.21μg/m³
PM10
34.42ppb
O3
3.10ppb
SO2
6.75ppb
NO2
0.19ppm
CO
AQI 77
Moderate
23.48μg/m³
PM2.5
100.86μg/m³
PM10
36.46ppb
O3
3.12ppb
SO2
7.08ppb
NO2
0.19ppm
CO
AQI 86
Moderate
28.16μg/m³
PM2.5
122.58μg/m³
PM10
37.97ppb
O3
3.38ppb
SO2
7.21ppb
NO2
0.19ppm
CO
AQI 84
Moderate
27.30μg/m³
PM2.5
76.22μg/m³
PM10
44.89ppb
O3
2.99ppb
SO2
6.62ppb
NO2
0.17ppm
CO
AQI 88
Moderate
29.12μg/m³
PM2.5
83.03μg/m³
PM10
39.58ppb
O3
3.23ppb
SO2
7.87ppb
NO2
0.15ppm
CO
AQI 90
Moderate
29.57μg/m³
PM2.5
94.86μg/m³
PM10
36.80ppb
O3
2.57ppb
SO2
8.21ppb
NO2
0.18ppm
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 12:00:00, 2025-06-04.
The best air quality in Portsmouth, Ohio was observed at 05:00:00 on 2025-06-03.
The air quality in Portsmouth, Ohio right now is Unhealthy for Sensitive Groups, with an AQI of 112.
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 40.084 μg/m3.
Portsmouth, Ohio currently has a PM10 concentration of 152.885 μg/m3.
The current carbon monoxide (CO) level in Portsmouth, Ohio is 0.187 ppm.
The current sulfur dioxide (SO2) concentration in Portsmouth, Ohio is 2.926 ppb.
Portsmouth, Ohio currently has an ozone (O3) concentration of 35.617 ppm.
The current level of nitrogen dioxide (NO2) in Portsmouth, Ohio is 6.772 ppb.
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