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Bethlehem (Pennsylvania) (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

Słaby deszcz ze śniegiem
1°C
Słaby deszcz ze śniegiem
Humidity
94.9%
Wind
3 m/s
Pressure
1017.6 hPa
Direction
83°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
-2° / 3°
Precip.
18.2mm
Max wind
7.1 m/s

Hourly Forecast

22.02
Now
Weather
0.2
22.02
14:00
Weather
0.1
22.02
15:00
Weather
0.3
22.02
16:00
Weather
0.6
22.02
17:00
Weather
0.8
22.02
18:00
Weather
0.6
22.02
19:00
Weather
0.6
6
22.02
20:00
Weather
0.8
6
22.02
21:00
Weather
0.9
22.02
22:00
Weather
0.8
6
22.02
23:00
Weather
-0°
0.8
6
23.02
00:00
Weather
-1°
1.3
6
23.02
01:00
Weather
-1°
1.7
5
23.02
02:00
Weather
-1°
1.5
6
23.02
03:00
Weather
-1°
1
6
23.02
04:00
Weather
-1°
0.7
7
23.02
05:00
Weather
-1°
0.7
7
23.02
06:00
Weather
-2°
0.8
7
23.02
07:00
Weather
-2°
0.9
7
23.02
08:00
Weather
-2°
0.9
7
23.02
09:00
Weather
-2°
0.8
7
23.02
10:00
Weather
-2°
0.7
7
23.02
11:00
Weather
-2°
0.5
7
23.02
12:00
Weather
-2°
0.2
7

Temperature

3°C
-2°C
13:00
1°C
14:00
1°C
15:00
3°C
16:00
2°C
17:00
1°C
18:00
1°C
19:00
1°C
20:00
1°C
21:00
1°C
22:00
0°C
23:00
-0°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
-2°C
07:00
-2°C
08:00
-2°C
09:00
-2°C
10:00
-2°C
11:00
-2°C
12:00
-2°C
13:00 00:00 12:00

Precipitation

1.7mm
0mm
13:00
0.2mm
14:00
0.1mm
15:00
0.3mm
16:00
0.6mm
17:00
0.8mm
18:00
0.6mm
19:00
0.6mm
20:00
0.8mm
21:00
0.9mm
22:00
0.8mm
23:00
0.8mm
00:00
1.3mm
01:00
1.7mm
02:00
1.5mm
03:00
1mm
04:00
0.7mm
05:00
0.7mm
06:00
0.8mm
07:00
0.9mm
08:00
0.9mm
09:00
0.8mm
10:00
0.7mm
11:00
0.5mm
12:00
0.2mm
13:00 00:00 12:00

Wind

7.1m/s
0m/s
13:00
3 m/s
14:00
3.7 m/s
15:00
4.7 m/s
16:00
3.8 m/s
17:00
4 m/s
18:00
4.9 m/s
19:00
6.1 m/s
20:00
5.7 m/s
21:00
4.9 m/s
22:00
5.6 m/s
23:00
6 m/s
00:00
6 m/s
01:00
5.2 m/s
02:00
5.5 m/s
03:00
6.4 m/s
04:00
6.8 m/s
05:00
7 m/s
06:00
6.9 m/s
07:00
7.1 m/s
08:00
7.1 m/s
09:00
6.9 m/s
10:00
7 m/s
11:00
6.8 m/s
12:00
6.7 m/s
13:00 00:00 12:00

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
97.8 km
60
20%

Measurement time: 2026-02-22 12:50

Calculated from PM2.5/PM10

PM2.5
97.8 km
16.59 µg/m3
19.8%

Measurement time: 2026-02-22 12:50

source: OpenWeatherMap

NO2
97.8 km
30.72 µg/m3
15.4%

Measurement time: 2026-02-22 12:50

source: OpenWeatherMap

PM10
97.8 km
21.54 µg/m3
15.4%

Measurement time: 2026-02-22 12:50

source: OpenWeatherMap

O3
97.8 km
14.13 µg/m3
8.8%

Measurement time: 2026-02-22 12:50

source: OpenWeatherMap

CO
97.8 km
0.40848 mg/m3
2.9%

Measurement time: 2026-02-22 12:50

source: OpenWeatherMap

SO2
97.8 km
2.91 µg/m3
0.8%

Measurement time: 2026-02-22 12:50

source: OpenWeatherMap

Info


Latitude: 40.62593
Longitude: -75.37046

Cities in the area:


Solar Energy

Low
228.8 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Bethlehem

About Air Quality in Bethlehem

Air quality in Bethlehem 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 Bethlehem

  • 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 Bethlehem?

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 Bethlehem

If you're planning outdoor activities in Bethlehem, 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.