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)
34
Good
North Castle, New York
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.09 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.09 μg/m³
0
55
155
255
425
605+
36.69 ppb
0
55
71
86
201
201+
0.39 ppb
0
36
76
186
605
1005+
2.18 ppb
0
54
101
361
1250
2050+
0.19 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
5.53μg/m³
PM2.5
24.14μg/m³
PM10
33.79ppb
O3
0.36ppb
SO2
1.67ppb
NO2
0.17ppm
CO
AQI 32
Good
4.11μg/m³
PM2.5
17.78μg/m³
PM10
35.38ppb
O3
0.32ppb
SO2
1.68ppb
NO2
0.17ppm
CO
AQI 33
Good
5.66μg/m³
PM2.5
24.08μg/m³
PM10
32.24ppb
O3
0.37ppb
SO2
1.68ppb
NO2
0.17ppm
CO
AQI 33
Good
6.04μg/m³
PM2.5
27.26μg/m³
PM10
33.55ppb
O3
0.42ppb
SO2
2.32ppb
NO2
0.17ppm
CO
AQI 33
Good
5.99μg/m³
PM2.5
26.97μg/m³
PM10
33.94ppb
O3
0.40ppb
SO2
1.75ppb
NO2
0.17ppm
CO
AQI 31
Good
4.40μg/m³
PM2.5
19.86μg/m³
PM10
32.91ppb
O3
0.35ppb
SO2
1.52ppb
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 04:00:00 on 2026-01-24.
In the last 24 hrs, the best air quality in North Castle, New York was observed at 06:00:00 on 2026-01-23.
The current air quality in North Castle, New York is 33, categorized as Good based on real-time data.
The most common pollutant in North Castle, New York is PM2.5.
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 5.645 μg/m3.
The current PM10 concentration at North Castle, New York is 25.392 μg/m3.
The current carbon monoxide (CO) concentration at North Castle, New York is 0.171 ppm.
The current sulfur dioxide (SO2) concentration at North Castle, New York is 0.398 ppb.
The current ozone (O3) concentration at North Castle, New York is 33.538 ppm.
The current nitrogen dioxide (NO2) concentration at North Castle, New York is 2.06 ppb.
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