Is time to run? ⚠️☢️☣️

Chalfont St Giles (England) (GB)

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
3°C
Partly cloudy
Humidity
84.5%
Wind
1 m/s
Pressure
1026.3 hPa
Direction
245°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
2° / 13°
Precip.
0mm
Max wind
4 m/s

Hourly Forecast

06.04
Now
Weather
06.04
04:00
Weather
06.04
05:00
Weather
06.04
06:00
Weather
06.04
07:00
Weather
06.04
08:00
Weather
06.04
09:00
Weather
06.04
10:00
Weather
10°
06.04
11:00
Weather
11°
06.04
12:00
Weather
12°
06.04
13:00
Weather
13°
06.04
14:00
Weather
13°
06.04
15:00
Weather
13°
06.04
16:00
Weather
13°
06.04
17:00
Weather
12°
06.04
18:00
Weather
11°
06.04
19:00
Weather
06.04
20:00
Weather
06.04
21:00
Weather
06.04
22:00
Weather
06.04
23:00
Weather
07.04
00:00
Weather
07.04
01:00
Weather
07.04
02:00
Weather

Temperature

13°C
2°C
03:00
3°C
04:00
2°C
05:00
2°C
06:00
2°C
07:00
4°C
08:00
6°C
09:00
8°C
10:00
10°C
11:00
11°C
12:00
12°C
13:00
13°C
14:00
13°C
15:00
13°C
16:00
13°C
17:00
12°C
18:00
11°C
19:00
9°C
20:00
8°C
21:00
7°C
22:00
7°C
23:00
6°C
00:00
6°C
01:00
6°C
02:00
6°C
03:00 14:00 02:00

Precipitation

0mm
0mm
03:00 14:00 02:00

Wind

4m/s
0m/s
03:00
1 m/s
04:00
0.7 m/s
05:00
1 m/s
06:00
1.4 m/s
07:00
2 m/s
08:00
1.9 m/s
09:00
2.7 m/s
10:00
3.5 m/s
11:00
3.9 m/s
12:00
4 m/s
13:00
4 m/s
14:00
4 m/s
15:00
3.8 m/s
16:00
3.6 m/s
17:00
3.3 m/s
18:00
2.4 m/s
19:00
2.3 m/s
20:00
2.4 m/s
21:00
2.8 m/s
22:00
3.1 m/s
23:00
3.2 m/s
00:00
3.3 m/s
01:00
3.5 m/s
02:00
3.4 m/s
03:00 14:00 02:00

Radiation

0.104 uSv
18.8 km
13%

Measurement time: 2026-04-06 01:00

source: remap_europe

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
75.1 km
126
42%

Measurement time: 2026-04-06 03:00

Calculated from PM2.5/PM10

PM2.5
75.1 km
46 µg/m3
54.8%

Measurement time: 2026-04-06 03:00

source: Aqicn

O3
86.9 km
43.18 µg/m3
27%

Measurement time: 2026-04-06 05:07

source: OpenWeatherMap

PM10
33 km
10 µg/m3
7.1%

Measurement time: 2026-04-06 04:00

source: Aqicn

NO2
86.9 km
11.63 µg/m3
5.8%

Measurement time: 2026-04-06 05:07

source: OpenWeatherMap

CO
86.9 km
0.14951 mg/m3
1.1%

Measurement time: 2026-04-06 05:07

source: OpenWeatherMap

SO2
86.9 km
3.25 µg/m3
0.9%

Measurement time: 2026-04-06 05:07

source: OpenWeatherMap

About Air Quality in Chalfont St Giles

Air quality in Chalfont St Giles 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 Chalfont St Giles

  • 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 Chalfont St Giles?

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 Chalfont St Giles

If you're planning outdoor activities in Chalfont St Giles, 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.