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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

Clear sky
12°C
Clear sky
Humidity
74.8%
Wind
5 m/s
Pressure
1015.1 hPa
Direction
183°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
8° / 16°
Precip.
0mm
Max wind
5.3 m/s

Hourly Forecast

24.02
Now
Weather
12°
24.02
17:00
Weather
11°
24.02
18:00
Weather
10°
24.02
19:00
Weather
24.02
20:00
Weather
24.02
21:00
Weather
24.02
22:00
Weather
24.02
23:00
Weather
25.02
00:00
Weather
5
25.02
01:00
Weather
5
25.02
02:00
Weather
25.02
03:00
Weather
25.02
04:00
Weather
25.02
05:00
Weather
25.02
06:00
Weather
5
25.02
07:00
Weather
25.02
08:00
Weather
25.02
09:00
Weather
10°
25.02
10:00
Weather
12°
25.02
11:00
Weather
13°
25.02
12:00
Weather
15°
25.02
13:00
Weather
16°
25.02
14:00
Weather
16°
25.02
15:00
Weather
16°

Temperature

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

Precipitation

0mm
0mm
16:00 03:00 15:00

Wind

5.3m/s
0m/s
16:00
5 m/s
17:00
4.1 m/s
18:00
4.1 m/s
19:00
4.2 m/s
20:00
4 m/s
21:00
4.2 m/s
22:00
4.6 m/s
23:00
5 m/s
00:00
5.2 m/s
01:00
5.3 m/s
02:00
4.9 m/s
03:00
4.7 m/s
04:00
4.6 m/s
05:00
4.8 m/s
06:00
5.1 m/s
07:00
4.8 m/s
08:00
4.7 m/s
09:00
4.7 m/s
10:00
4.7 m/s
11:00
3.8 m/s
12:00
3.7 m/s
13:00
3.7 m/s
14:00
3.6 m/s
15:00
3.3 m/s
16:00 03:00 15:00

Radiation

0.102 uSv
20.1 km
12.7%

Measurement time: 2026-02-24 14:00

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
37.8 km
97
32.3%

Measurement time: 2026-02-24 15:00

Calculated from PM2.5/PM10

PM2.5
37.8 km
34 µg/m3
40.5%

Measurement time: 2026-02-24 15:00

source: Aqicn

PM10
37.8 km
29 µg/m3
20.7%

Measurement time: 2026-02-24 15:00

source: Aqicn

O3
37.4 km
25.8 µg/m3
16.1%

Measurement time: 2026-02-24 16:00

source: Aqicn

NO2
37.8 km
6.9 µg/m3
3.5%

Measurement time: 2026-02-24 15:00

source: Aqicn

SO2
37.4 km
0.6 µg/m3
0.2%

Measurement time: 2026-02-24 16:00

source: Aqicn

CO
37.4 km
0.0042 mg/m3
0%

Measurement time: 2026-02-24 16:00

source: Aqicn

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.