Stay updated with real-time air quality in Knightdale, 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)
56
Moderate
Knightdale, North Carolina
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
12.50 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.84 μg/m³
0
55
155
255
425
605+
5.15 ppb
0
55
71
86
201
201+
0.39 ppb
0
36
76
186
605
1005+
10.10 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Knightdale, North Carolina
Knightdale, North Carolina
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AQI 56
Moderate
12.12μg/m³
PM2.5
26.68μg/m³
PM10
7.14ppb
O3
0.43ppb
SO2
10.64ppb
NO2
0.29ppm
CO
AQI 56
Moderate
12.17μg/m³
PM2.5
24.58μg/m³
PM10
5.39ppb
O3
0.39ppb
SO2
9.40ppb
NO2
0.30ppm
CO
AQI 54
Moderate
10.71μg/m³
PM2.5
27.00μg/m³
PM10
6.67ppb
O3
0.34ppb
SO2
13.79ppb
NO2
0.30ppm
CO
AQI 60
Moderate
13.92μg/m³
PM2.5
53.44μg/m³
PM10
7.82ppb
O3
0.43ppb
SO2
10.11ppb
NO2
0.29ppm
CO
AQI 60
Moderate
13.64μg/m³
PM2.5
58.84μg/m³
PM10
6.45ppb
O3
0.34ppb
SO2
13.28ppb
NO2
0.30ppm
CO
AQI 58
Moderate
12.52μg/m³
PM2.5
39.26μg/m³
PM10
6.83ppb
O3
0.43ppb
SO2
10.03ppb
NO2
0.29ppm
CO
Air quality data and pollutant measurements for North Carolina, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Knightdale, North Carolina is updated every hour.
The worst air quality in Knightdale, North Carolina in the last 24 hours was observed at 07:00:00 on 2025-12-07.
In the last 24 hrs, the best air quality in Knightdale, North Carolina was observed at 02:00:00 on 2025-12-06.
The current air quality in Knightdale, North Carolina is 56, categorized as Moderate based on real-time data.
The most common pollutant in Knightdale, North Carolina is PM2.5.
If the air quality in Knightdale, North Carolina is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Knightdale, North Carolina is 12.499 μg/m3.
The current PM10 concentration at Knightdale, North Carolina is 27.844 μg/m3.
The current carbon monoxide (CO) concentration at Knightdale, North Carolina is 0.3 ppm.
The current sulfur dioxide (SO2) concentration at Knightdale, North Carolina is 0.394 ppb.
The current ozone (O3) concentration at Knightdale, North Carolina is 5.15 ppm.
The current nitrogen dioxide (NO2) concentration at Knightdale, North Carolina is 10.098 ppb.
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