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Syosset (New York) (US)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Heavy snow
-0°C
Heavy snow
Humidity
91.7%
Wind
8 m/s
Pressure
1012.3 hPa
Direction
54°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
-2° / -0°
Precip.
27.1mm
Max wind
11.5 m/s

Hourly Forecast

22.02
Now
Weather
-0°
1.2
8
22.02
23:00
Weather
-1°
1.6
9
23.02
00:00
Weather
-1°
1.4
9
23.02
01:00
Weather
-1°
1.1
9
23.02
02:00
Weather
-1°
1
10
23.02
03:00
Weather
-1°
1.1
11
23.02
04:00
Weather
-1°
1.2
11
23.02
05:00
Weather
-1°
1.6
10
23.02
06:00
Weather
-1°
1.5
11
23.02
07:00
Weather
-1°
1.3
11
23.02
08:00
Weather
-1°
1.8
11
23.02
09:00
Weather
-2°
1.7
11
23.02
10:00
Weather
-2°
2.2
11
23.02
11:00
Weather
-2°
2.1
12
23.02
12:00
Weather
-2°
1.1
11
23.02
13:00
Weather
-2°
0.9
11
23.02
14:00
Weather
-2°
0.9
9
23.02
15:00
Weather
-2°
0.9
9
23.02
16:00
Weather
-2°
0.8
10
23.02
17:00
Weather
-2°
0.6
10
23.02
18:00
Weather
-2°
0.6
10
23.02
19:00
Weather
-2°
0.4
9
23.02
20:00
Weather
-1°
0.1
8
23.02
21:00
Weather
-1°
8

Temperature

-0°C
-2°C
22:00
-0°C
23:00
-1°C
00:00
-1°C
01:00
-1°C
02:00
-1°C
03:00
-1°C
04:00
-1°C
05:00
-1°C
06:00
-1°C
07:00
-1°C
08:00
-1°C
09:00
-2°C
10:00
-2°C
11:00
-2°C
12:00
-2°C
13:00
-2°C
14:00
-2°C
15:00
-2°C
16:00
-2°C
17:00
-2°C
18:00
-2°C
19:00
-2°C
20:00
-1°C
21:00
-1°C
22:00 09:00 21:00

Precipitation

2.2mm
0mm
22:00
1.2mm
23:00
1.6mm
00:00
1.4mm
01:00
1.1mm
02:00
1mm
03:00
1.1mm
04:00
1.2mm
05:00
1.6mm
06:00
1.5mm
07:00
1.3mm
08:00
1.8mm
09:00
1.7mm
10:00
2.2mm
11:00
2.1mm
12:00
1.1mm
13:00
0.9mm
14:00
0.9mm
15:00
0.9mm
16:00
0.8mm
17:00
0.6mm
18:00
0.6mm
19:00
0.4mm
20:00
0.1mm
22:00 09:00 21:00

Wind

11.5m/s
0m/s
22:00
8.3 m/s
23:00
8.6 m/s
00:00
8.8 m/s
01:00
9.3 m/s
02:00
10 m/s
03:00
10.5 m/s
04:00
10.8 m/s
05:00
10.4 m/s
06:00
10.8 m/s
07:00
10.7 m/s
08:00
11.1 m/s
09:00
11.2 m/s
10:00
11.1 m/s
11:00
11.5 m/s
12:00
11.4 m/s
13:00
10.8 m/s
14:00
9.4 m/s
15:00
9.3 m/s
16:00
9.8 m/s
17:00
9.8 m/s
18:00
9.8 m/s
19:00
8.9 m/s
20:00
8.2 m/s
21:00
7.7 m/s
22:00 09:00 21:00

Radiation

No sensor within 100 km.

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
44.2 km
71
23.7%

Measurement time: 2026-02-22 22:00

Calculated from PM2.5/PM10

PM2.5
44.2 km
22 µg/m3
26.2%

Measurement time: 2026-02-22 22:00

source: Aqicn

O3
33.4 km
31.2 µg/m3
19.5%

Measurement time: 2026-02-22 22:00

source: Aqicn

NO2
33.4 km
11.4 µg/m3
5.7%

Measurement time: 2026-02-22 22:00

source: Aqicn

CO
33.4 km
0.0034 mg/m3
0%

Measurement time: 2026-02-22 22:00

source: Aqicn

About Air Quality in Syosset

Air quality in Syosset is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in Syosset

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in Syosset?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in Syosset

If you're planning outdoor activities in Syosset, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.