Stay updated with real-time air quality in Halfmoon, 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)
49
Good
Halfmoon, New York
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.99 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.59 μg/m³
0
55
155
255
425
605+
17.92 ppb
0
55
71
86
201
201+
0.33 ppb
0
36
76
186
605
1005+
10.04 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Halfmoon, New York
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AQI 44
Good
8.39μg/m³
PM2.5
30.93μg/m³
PM10
18.43ppb
O3
0.32ppb
SO2
10.63ppb
NO2
0.15ppm
CO
AQI 44
Good
8.40μg/m³
PM2.5
33.39μg/m³
PM10
16.48ppb
O3
0.33ppb
SO2
11.12ppb
NO2
0.19ppm
CO
AQI 49
Good
9.35μg/m³
PM2.5
22.61μg/m³
PM10
17.80ppb
O3
0.33ppb
SO2
11.18ppb
NO2
0.15ppm
CO
AQI 44
Good
8.35μg/m³
PM2.5
34.28μg/m³
PM10
20.55ppb
O3
0.32ppb
SO2
10.67ppb
NO2
0.15ppm
CO
AQI 49
Good
8.56μg/m³
PM2.5
27.62μg/m³
PM10
17.84ppb
O3
0.33ppb
SO2
11.03ppb
NO2
0.15ppm
CO
AQI 44
Good
8.30μg/m³
PM2.5
35.28μg/m³
PM10
16.73ppb
O3
0.33ppb
SO2
10.94ppb
NO2
0.20ppm
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 Halfmoon, New York is updated every hour.
The worst air quality in Halfmoon, New York in the last 24 hours was observed at 03:00:00 on 2026-03-08.
In the last 24 hrs, the best air quality in Halfmoon, New York was observed at 02:00:00 on 2026-03-07.
The current air quality in Halfmoon, New York is 49, categorized as Good based on real-time data.
The most common pollutant in Halfmoon, New York is PM2.5.
If the air quality in Halfmoon, New York is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Halfmoon, New York is 8.988 μg/m3.
The current PM10 concentration at Halfmoon, New York is 21.59 μg/m3.
The current carbon monoxide (CO) concentration at Halfmoon, New York is 0.152 ppm.
The current sulfur dioxide (SO2) concentration at Halfmoon, New York is 0.327 ppb.
The current ozone (O3) concentration at Halfmoon, New York is 17.921 ppm.
The current nitrogen dioxide (NO2) concentration at Halfmoon, New York is 10.044 ppb.
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