Stay updated with real-time air quality in Smithfield, North Carolina 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)
54
Moderate
Smithfield, North Carolina
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
10.66 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
32.04 μg/m³
0
55
155
255
425
605+
53.89 ppb
0
55
71
86
201
201+
0.39 ppb
0
36
76
186
605
1005+
4.94 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Smithfield, North Carolina
Smithfield, North Carolina
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AQI 54
Moderate
10.53μg/m³
PM2.5
44.80μg/m³
PM10
53.84ppb
O3
0.40ppb
SO2
4.96ppb
NO2
0.24ppm
CO
AQI 52
Moderate
10.23μg/m³
PM2.5
41.32μg/m³
PM10
52.54ppb
O3
0.40ppb
SO2
4.05ppb
NO2
0.23ppm
CO
AQI 56
Moderate
11.65μg/m³
PM2.5
41.95μg/m³
PM10
52.36ppb
O3
0.41ppb
SO2
4.71ppb
NO2
0.23ppm
CO
AQI 52
Moderate
9.77μg/m³
PM2.5
26.83μg/m³
PM10
52.75ppb
O3
0.41ppb
SO2
3.60ppb
NO2
0.22ppm
CO
AQI 45
Good
7.89μg/m³
PM2.5
28.54μg/m³
PM10
49.43ppb
O3
0.27ppb
SO2
3.92ppb
NO2
0.20ppm
CO
AQI 52
Moderate
9.87μg/m³
PM2.5
25.02μg/m³
PM10
53.04ppb
O3
0.41ppb
SO2
4.57ppb
NO2
0.23ppm
CO
Air quality measurements for North Carolina, 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 Smithfield, North Carolina is updated on an hourly basis.
The worst air quality in Smithfield, North Carolina was recorded at 05:00:00 on 2025-06-04.
The best air quality in Smithfield, North Carolina was recorded at 03:00:00 on 2025-06-04.
The real-time air quality index in Smithfield, North Carolina is 54, currently categorized as Moderate.
The most common pollutant in Smithfield, North Carolina is PM2.5.
If the air quality in Smithfield, North Carolina is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Smithfield, North Carolina at present are 10.66 μg/m3.
The current PM10 levels in Smithfield, North Carolina are 32.038 μg/m3.
The current carbon monoxide (CO) level in Smithfield, North Carolina is 0.239 ppm.
The current sulfur dioxide (SO2) levels in Smithfield, North Carolina are 0.392 ppb.
The current ozone (O3) levels at Smithfield, North Carolina is 53.89 ppm.
The current nitrogen dioxide (NO2) levels at Smithfield, North Carolina is 4.937 ppb.
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