Stay updated with real-time air quality in Portsmouth, Virginia 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, Virginia
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+
9.23 μg/m³
0
55
155
255
425
605+
11.13 ppb
0
55
71
86
201
201+
0.50 ppb
0
36
76
186
605
1005+
16.65 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Portsmouth, Virginia
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AQI 44
Good
7.86μg/m³
PM2.5
9.12μg/m³
PM10
11.15ppb
O3
0.50ppb
SO2
16.81ppb
NO2
0.20ppm
CO
AQI 44
Good
8.42μg/m³
PM2.5
10.37μg/m³
PM10
10.82ppb
O3
0.49ppb
SO2
15.13ppb
NO2
0.20ppm
CO
AQI 52
Moderate
9.89μg/m³
PM2.5
12.73μg/m³
PM10
12.05ppb
O3
0.50ppb
SO2
7.38ppb
NO2
0.20ppm
CO
AQI 58
Moderate
9.44μg/m³
PM2.5
70.48μg/m³
PM10
8.62ppb
O3
0.46ppb
SO2
10.25ppb
NO2
0.23ppm
CO
AQI 58
Moderate
9.05μg/m³
PM2.5
68.69μg/m³
PM10
11.75ppb
O3
0.43ppb
SO2
5.52ppb
NO2
0.23ppm
CO
AQI 49
Good
8.86μg/m³
PM2.5
19.93μg/m³
PM10
11.84ppb
O3
0.48ppb
SO2
8.00ppb
NO2
0.22ppm
CO
Air quality measurements for Virginia, 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 Portsmouth, Virginia is updated on an hourly basis.
The worst air quality in Portsmouth, Virginia was recorded at 08:00:00 on 2025-12-07.
The best air quality in Portsmouth, Virginia was recorded at 02:00:00 on 2025-12-07.
The real-time air quality index in Portsmouth, Virginia is 44, currently categorized as Good.
The most common pollutant in Portsmouth, Virginia is PM2.5.
If the air quality in Portsmouth, Virginia is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Portsmouth, Virginia at present are 7.914 μg/m3.
The current PM10 levels in Portsmouth, Virginia are 9.234 μg/m3.
The current carbon monoxide (CO) level in Portsmouth, Virginia is 0.201 ppm.
The current sulfur dioxide (SO2) levels in Portsmouth, Virginia are 0.499 ppb.
The current ozone (O3) levels at Portsmouth, Virginia is 11.125 ppm.
The current nitrogen dioxide (NO2) levels at Portsmouth, Virginia is 16.651 ppb.
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