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)
68
Moderate
Hempstead, New York
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
16.07 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
89.11 μg/m³
0
55
155
255
425
605+
6.91 ppb
0
55
71
86
201
201+
0.86 ppb
0
36
76
186
605
1005+
21.89 ppb
0
54
101
361
1250
2050+
0.50 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Hempstead, New York
Hempstead, New York
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AQI 69
Moderate
18.86μg/m³
PM2.5
79.33μg/m³
PM10
7.56ppb
O3
1.20ppb
SO2
25.68ppb
NO2
0.64ppm
CO
AQI 67
Moderate
18.05μg/m³
PM2.5
82.11μg/m³
PM10
8.11ppb
O3
1.21ppb
SO2
25.71ppb
NO2
0.65ppm
CO
AQI 67
Moderate
18.05μg/m³
PM2.5
82.11μg/m³
PM10
8.11ppb
O3
1.21ppb
SO2
25.71ppb
NO2
0.65ppm
CO
AQI 67
Moderate
18.21μg/m³
PM2.5
82.12μg/m³
PM10
6.33ppb
O3
1.19ppb
SO2
25.06ppb
NO2
0.65ppm
CO
AQI 67
Moderate
18.20μg/m³
PM2.5
82.01μg/m³
PM10
3.99ppb
O3
1.21ppb
SO2
25.46ppb
NO2
0.64ppm
CO
AQI 67
Moderate
17.82μg/m³
PM2.5
83.03μg/m³
PM10
6.47ppb
O3
1.17ppb
SO2
17.76ppb
NO2
0.64ppm
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 07:00:00 on 2025-12-07.
The best air quality in Hempstead, New York was recorded at 10:00:00 on 2025-12-06.
The real-time air quality index in Hempstead, New York is 68, currently categorized as Moderate.
The most common pollutant in Hempstead, New York is PM10.
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 16.069 μg/m3.
The current PM10 levels in Hempstead, New York are 89.115 μg/m3.
The current carbon monoxide (CO) level in Hempstead, New York is 0.5 ppm.
The current sulfur dioxide (SO2) levels in Hempstead, New York are 0.858 ppb.
The current ozone (O3) levels at Hempstead, New York is 6.905 ppm.
The current nitrogen dioxide (NO2) levels at Hempstead, New York is 21.892 ppb.
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