Stay updated with real-time air quality in Hempstead, 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)
22
Good
Hempstead, New York
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.52 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
7.06 μg/m³
0
55
155
255
425
605+
23.40 ppb
0
55
71
86
201
201+
0.24 ppb
0
36
76
186
605
1005+
12.56 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Hempstead, New York
Hempstead, New York
Scroll To Air Quality MapLoading...
AQI 23
Good
2.87μg/m³
PM2.5
14.47μg/m³
PM10
25.07ppb
O3
0.24ppb
SO2
11.91ppb
NO2
0.13ppm
CO
AQI 22
Good
3.69μg/m³
PM2.5
6.15μg/m³
PM10
24.41ppb
O3
0.24ppb
SO2
12.77ppb
NO2
0.13ppm
CO
AQI 22
Good
3.69μg/m³
PM2.5
6.15μg/m³
PM10
24.41ppb
O3
0.24ppb
SO2
12.77ppb
NO2
0.13ppm
CO
AQI 22
Good
4.34μg/m³
PM2.5
17.04μg/m³
PM10
22.61ppb
O3
0.24ppb
SO2
12.78ppb
NO2
0.13ppm
CO
AQI 23
Good
3.25μg/m³
PM2.5
14.38μg/m³
PM10
25.05ppb
O3
0.24ppb
SO2
11.36ppb
NO2
0.13ppm
CO
AQI 22
Good
3.75μg/m³
PM2.5
6.19μg/m³
PM10
22.88ppb
O3
0.24ppb
SO2
12.58ppb
NO2
0.14ppm
CO
Air quality measurements for New York, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Hempstead, New York is updated on an hourly basis.
The worst air quality in Hempstead, New York was recorded at 12:00:00 on 2025-10-18.
The best air quality in Hempstead, New York was recorded at 06:00:00 on 2025-10-18.
The real-time air quality index in Hempstead, New York is 25, currently categorized as Good.
The most common pollutant in Hempstead, New York is O3.
If the air quality in Hempstead, New York is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Hempstead, New York at present are 3.693 μg/m3.
The current PM10 levels in Hempstead, New York are 18.121 μg/m3.
The current carbon monoxide (CO) level in Hempstead, New York is 0.331 ppm.
The current sulfur dioxide (SO2) levels in Hempstead, New York are 0.862 ppb.
The current ozone (O3) levels at Hempstead, New York is 26.612 ppm.
The current nitrogen dioxide (NO2) levels at Hempstead, New York is 18.339 ppb.
All Rights Reserved © Ambee Inc. 2025