Stay updated with real-time air quality in North Castle, New York 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)
41
Good
North Castle, New York
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.21 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.27 μg/m³
0
55
155
255
425
605+
44.04 ppb
0
55
71
86
201
201+
0.79 ppb
0
36
76
186
605
1005+
4.57 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
North Castle, New York
North Castle, New York
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AQI 33
Good
5.73μg/m³
PM2.5
33.18μg/m³
PM10
33.00ppb
O3
0.78ppb
SO2
5.07ppb
NO2
0.27ppm
CO
AQI 31
Good
5.40μg/m³
PM2.5
31.13μg/m³
PM10
33.51ppb
O3
0.69ppb
SO2
5.28ppb
NO2
0.28ppm
CO
AQI 33
Good
6.33μg/m³
PM2.5
19.65μg/m³
PM10
32.49ppb
O3
0.82ppb
SO2
5.04ppb
NO2
0.27ppm
CO
AQI 34
Good
3.82μg/m³
PM2.5
16.57μg/m³
PM10
36.94ppb
O3
0.94ppb
SO2
5.06ppb
NO2
0.27ppm
CO
AQI 32
Good
3.30μg/m³
PM2.5
14.42μg/m³
PM10
35.35ppb
O3
0.90ppb
SO2
4.94ppb
NO2
0.27ppm
CO
AQI 44
Good
6.38μg/m³
PM2.5
28.54μg/m³
PM10
47.41ppb
O3
0.80ppb
SO2
5.36ppb
NO2
0.28ppm
CO
Air quality data and pollutant measurements for New York, 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 North Castle, New York is updated every hour.
The worst air quality in North Castle, New York in the last 24 hours was observed at 10:00:00 on 2026-08-07.
In the last 24 hrs, the best air quality in North Castle, New York was observed at 11:00:00 on 2026-08-08.
The current air quality in North Castle, New York is 35, categorized as Good based on real-time data.
The most common pollutant in North Castle, New York is O3.
If the air quality in North Castle, New York is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at North Castle, New York is 4.592 μg/m3.
The current PM10 concentration at North Castle, New York is 19.938 μg/m3.
The current carbon monoxide (CO) concentration at North Castle, New York is 0.275 ppm.
The current sulfur dioxide (SO2) concentration at North Castle, New York is 0.844 ppb.
The current ozone (O3) concentration at North Castle, New York is 38.482 ppm.
The current nitrogen dioxide (NO2) concentration at North Castle, New York is 4.989 ppb.
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