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)
31
Good
North Castle, New York
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.37 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.75 μg/m³
0
55
155
255
425
605+
34.12 ppb
0
55
71
86
201
201+
0.23 ppb
0
36
76
186
605
1005+
4.63 ppb
0
54
101
361
1250
2050+
0.30 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 31
Good
2.35μg/m³
PM2.5
9.30μg/m³
PM10
34.46ppb
O3
0.20ppb
SO2
2.60ppb
NO2
0.17ppm
CO
AQI 31
Good
2.34μg/m³
PM2.5
9.10μg/m³
PM10
33.74ppb
O3
0.20ppb
SO2
2.61ppb
NO2
0.17ppm
CO
AQI 31
Good
2.43μg/m³
PM2.5
9.54μg/m³
PM10
32.85ppb
O3
0.20ppb
SO2
2.60ppb
NO2
0.17ppm
CO
AQI 31
Good
1.97μg/m³
PM2.5
8.72μg/m³
PM10
34.47ppb
O3
0.21ppb
SO2
5.41ppb
NO2
0.18ppm
CO
AQI 32
Good
1.83μg/m³
PM2.5
8.12μg/m³
PM10
34.93ppb
O3
0.20ppb
SO2
5.09ppb
NO2
0.17ppm
CO
AQI 31
Good
2.06μg/m³
PM2.5
8.85μg/m³
PM10
34.39ppb
O3
0.20ppb
SO2
4.67ppb
NO2
0.17ppm
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 07:00:00 on 2025-12-08.
In the last 24 hrs, the best air quality in North Castle, New York was observed at 02:00:00 on 2025-12-08.
The current air quality in North Castle, New York is 31, 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 2.373 μg/m3.
The current PM10 concentration at North Castle, New York is 9.751 μg/m3.
The current carbon monoxide (CO) concentration at North Castle, New York is 0.304 ppm.
The current sulfur dioxide (SO2) concentration at North Castle, New York is 0.227 ppb.
The current ozone (O3) concentration at North Castle, New York is 34.123 ppm.
The current nitrogen dioxide (NO2) concentration at North Castle, New York is 4.627 ppb.
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