Is time to run? ⚠️☢️☣️

Stony Brook (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

Partly cloudy
7°C
Partly cloudy
Humidity
45.6%
Wind
6 m/s
Pressure
1031.1 hPa
Direction
138°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
4° / 13°
Precip.
10.9mm
Max wind
13.9 m/s

Hourly Forecast

15.03
Now
Weather
6
15.03
19:00
Weather
5
15.03
20:00
Weather
6
15.03
21:00
Weather
5
15.03
22:00
Weather
5
15.03
23:00
Weather
6
16.03
00:00
Weather
6
16.03
01:00
Weather
6
16.03
02:00
Weather
7
16.03
03:00
Weather
7
16.03
04:00
Weather
8
16.03
05:00
Weather
9
16.03
06:00
Weather
9
16.03
07:00
Weather
10°
0.2
8
16.03
08:00
Weather
10°
2.7
8
16.03
09:00
Weather
10°
1.9
9
16.03
10:00
Weather
10°
0.8
10
16.03
11:00
Weather
11°
1.6
10
16.03
12:00
Weather
12°
1.6
9
16.03
13:00
Weather
12°
1.1
9
16.03
14:00
Weather
11°
0.4
10
16.03
15:00
Weather
12°
0.5
12
16.03
16:00
Weather
13°
0.1
14
16.03
17:00
Weather
13°
14

Temperature

13°C
4°C
18:00
7°C
19:00
6°C
20:00
6°C
21:00
6°C
22:00
5°C
23:00
4°C
00:00
4°C
01:00
5°C
02:00
5°C
03:00
7°C
04:00
7°C
05:00
9°C
06:00
9°C
07:00
10°C
08:00
10°C
09:00
10°C
10:00
10°C
11:00
11°C
12:00
12°C
13:00
12°C
14:00
11°C
15:00
12°C
16:00
13°C
17:00
13°C
18:00 05:00 17:00

Precipitation

2.7mm
0mm
07:00
0.2mm
08:00
2.7mm
09:00
1.9mm
10:00
0.8mm
11:00
1.6mm
12:00
1.6mm
13:00
1.1mm
14:00
0.4mm
15:00
0.5mm
16:00
0.1mm
18:00 05:00 17:00

Wind

13.9m/s
0m/s
18:00
5.6 m/s
19:00
5.4 m/s
20:00
5.5 m/s
21:00
5.2 m/s
22:00
5.1 m/s
23:00
5.6 m/s
00:00
5.8 m/s
01:00
6.3 m/s
02:00
7.2 m/s
03:00
7.3 m/s
04:00
8.3 m/s
05:00
8.8 m/s
06:00
8.9 m/s
07:00
8.3 m/s
08:00
8 m/s
09:00
9.4 m/s
10:00
10.4 m/s
11:00
10 m/s
12:00
9.4 m/s
13:00
9.4 m/s
14:00
10 m/s
15:00
11.8 m/s
16:00
13.9 m/s
17:00
13.8 m/s
18:00 05:00 17:00

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
76.5 km
84
28%

Measurement time: 2026-03-15 17:00

Calculated from PM2.5/PM10

PM2.5
76.5 km
28 µg/m3
33.3%

Measurement time: 2026-03-15 17:00

source: Aqicn

O3
54.1 km
33.6 µg/m3
21%

Measurement time: 2026-03-15 17:00

source: Aqicn

NO2
54.1 km
11.4 µg/m3
5.7%

Measurement time: 2026-03-15 17:00

source: Aqicn

CO
54.1 km
0.0034 mg/m3
0%

Measurement time: 2026-03-15 17:00

source: Aqicn

Info


Region: New York
Latitude: 40.92565
Longitude: -73.14094


Solar Energy

Low
288.3 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Stony Brook

About Air Quality in Stony Brook

Air quality in Stony Brook 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 Stony Brook

  • 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 Stony Brook?

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 Stony Brook

If you're planning outdoor activities in Stony Brook, 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.