Stay updated with real-time air quality in Ulster, 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)
38
Good
Ulster, New York
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.62 μg/m³
0
55
155
255
425
605+
29.18 ppb
0
55
71
86
201
201+
0.17 ppb
0
36
76
186
605
1005+
22.39 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Ulster, New York
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AQI 44
Good
8.31μg/m³
PM2.5
23.32μg/m³
PM10
37.49ppb
O3
0.16ppb
SO2
18.05ppb
NO2
0.27ppm
CO
AQI 44
Good
7.86μg/m³
PM2.5
27.21μg/m³
PM10
37.23ppb
O3
0.16ppb
SO2
18.35ppb
NO2
0.26ppm
CO
AQI 38
Good
7.27μg/m³
PM2.5
29.95μg/m³
PM10
37.28ppb
O3
0.16ppb
SO2
18.33ppb
NO2
0.27ppm
CO
AQI 44
Good
8.43μg/m³
PM2.5
32.42μg/m³
PM10
34.87ppb
O3
0.16ppb
SO2
18.36ppb
NO2
0.27ppm
CO
AQI 44
Good
7.80μg/m³
PM2.5
31.68μg/m³
PM10
36.35ppb
O3
0.28ppb
SO2
17.96ppb
NO2
0.28ppm
CO
AQI 38
Good
7.12μg/m³
PM2.5
24.14μg/m³
PM10
35.02ppb
O3
0.20ppb
SO2
17.47ppb
NO2
0.29ppm
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 Ulster, New York is updated on an hourly basis.
The worst air quality in Ulster, New York was recorded at 07:00:00 on 2026-04-13.
The best air quality in Ulster, New York was recorded at 12:00:00 on 2026-04-13.
The real-time air quality index in Ulster, New York is 44, currently categorized as Good.
The most common pollutant in Ulster, New York is PM2.5.
If the air quality in Ulster, New York is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Ulster, New York at present are 7.964 μg/m3.
The current PM10 levels in Ulster, New York are 29.695 μg/m3.
The current carbon monoxide (CO) level in Ulster, New York is 0.271 ppm.
The current sulfur dioxide (SO2) levels in Ulster, New York are 0.161 ppb.
The current ozone (O3) levels at Ulster, New York is 37.092 ppm.
The current nitrogen dioxide (NO2) levels at Ulster, New York is 18.16 ppb.
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