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)
52
Moderate
Hempstead, New York
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
10.39 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
25.51 μg/m³
0
55
155
255
425
605+
11.38 ppb
0
55
71
86
201
201+
0.28 ppb
0
36
76
186
605
1005+
7.42 ppb
0
54
101
361
1250
2050+
0.27 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 67
Moderate
18.49μg/m³
PM2.5
65.05μg/m³
PM10
7.60ppb
O3
0.63ppb
SO2
18.70ppb
NO2
0.43ppm
CO
AQI 69
Moderate
18.92μg/m³
PM2.5
64.94μg/m³
PM10
7.59ppb
O3
0.64ppb
SO2
18.72ppb
NO2
0.43ppm
CO
AQI 69
Moderate
18.92μg/m³
PM2.5
64.94μg/m³
PM10
7.59ppb
O3
0.64ppb
SO2
18.72ppb
NO2
0.43ppm
CO
AQI 75
Moderate
22.08μg/m³
PM2.5
99.29μg/m³
PM10
9.63ppb
O3
0.62ppb
SO2
11.15ppb
NO2
0.43ppm
CO
AQI 69
Moderate
19.14μg/m³
PM2.5
74.93μg/m³
PM10
4.78ppb
O3
0.63ppb
SO2
18.70ppb
NO2
0.42ppm
CO
AQI 60
Moderate
13.78μg/m³
PM2.5
44.71μg/m³
PM10
9.60ppb
O3
0.61ppb
SO2
9.11ppb
NO2
0.43ppm
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 06:00:00 on 2025-08-02.
The best air quality in Hempstead, New York was recorded at 08:00:00 on 2025-08-01.
The real-time air quality index in Hempstead, New York is 66, currently categorized as Moderate.
The most common pollutant in Hempstead, New York is PM2.5.
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 17.388 μg/m3.
The current PM10 levels in Hempstead, New York are 65.029 μg/m3.
The current carbon monoxide (CO) level in Hempstead, New York is 0.431 ppm.
The current sulfur dioxide (SO2) levels in Hempstead, New York are 0.628 ppb.
The current ozone (O3) levels at Hempstead, New York is 9.167 ppm.
The current nitrogen dioxide (NO2) levels at Hempstead, New York is 14.488 ppb.
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