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Cesson-Sévigné (Brittany) (FR)

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
5°C
Partly cloudy
Humidity
97.3%
Wind
4 m/s
Pressure
994.7 hPa
Direction
186°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
4° / 11°
Precip.
3.6mm
Max wind
4.2 m/s

Hourly Forecast

31.01
Now
Weather
31.01
05:00
Weather
31.01
06:00
Weather
31.01
07:00
Weather
31.01
08:00
Weather
0.1
31.01
09:00
Weather
1.4
31.01
10:00
Weather
1.4
31.01
11:00
Weather
31.01
12:00
Weather
31.01
13:00
Weather
0.3
31.01
14:00
Weather
10°
31.01
15:00
Weather
11°
31.01
16:00
Weather
10°
31.01
17:00
Weather
31.01
18:00
Weather
31.01
19:00
Weather
31.01
20:00
Weather
31.01
21:00
Weather
31.01
22:00
Weather
31.01
23:00
Weather
01.02
00:00
Weather
01.02
01:00
Weather
01.02
02:00
Weather
0.3
01.02
03:00
Weather
0.1

Temperature

11°C
4°C
04:00
5°C
05:00
5°C
06:00
4°C
07:00
4°C
08:00
4°C
09:00
5°C
10:00
6°C
11:00
7°C
12:00
8°C
13:00
9°C
14:00
10°C
15:00
11°C
16:00
10°C
17:00
8°C
18:00
8°C
19:00
7°C
20:00
6°C
21:00
6°C
22:00
6°C
23:00
6°C
00:00
6°C
01:00
6°C
02:00
7°C
03:00
7°C
04:00 15:00 03:00

Precipitation

1.4mm
0mm
08:00
0.1mm
09:00
1.4mm
10:00
1.4mm
13:00
0.3mm
02:00
0.3mm
03:00
0.1mm
04:00 15:00 03:00

Wind

4.2m/s
0m/s
04:00
3.7 m/s
05:00
3.2 m/s
06:00
3 m/s
07:00
3.5 m/s
08:00
3.7 m/s
09:00
4.2 m/s
10:00
2.9 m/s
11:00
3.4 m/s
12:00
4.1 m/s
13:00
3.7 m/s
14:00
3.7 m/s
15:00
3.6 m/s
16:00
2.1 m/s
17:00
2.4 m/s
18:00
3 m/s
19:00
2.9 m/s
20:00
3.2 m/s
21:00
2.9 m/s
22:00
2.8 m/s
23:00
2.8 m/s
00:00
3 m/s
01:00
3.1 m/s
02:00
3.6 m/s
03:00
2.7 m/s
04:00 15:00 03:00

Radiation

0.071 uSv
6.5 km
8.9%

Measurement time: 2026-01-31 03:00

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
11.3 km
2
0.7%

Measurement time: 2026-01-31 03:41

Calculated from PM2.5/PM10

O3
11.3 km
72.65 µg/m3
45.4%

Measurement time: 2026-01-31 03:41

source: OpenWeatherMap

CO
11.3 km
0.1341 mg/m3
1%

Measurement time: 2026-01-31 03:41

source: OpenWeatherMap

NO2
11.3 km
1.69 µg/m3
0.8%

Measurement time: 2026-01-31 03:41

source: OpenWeatherMap

PM2.5
11.3 km
0.5 µg/m3
0.6%

Measurement time: 2026-01-31 03:41

source: OpenWeatherMap

PM10
11.3 km
0.73 µg/m3
0.5%

Measurement time: 2026-01-31 03:41

source: OpenWeatherMap

SO2
11.3 km
0.36 µg/m3
0.1%

Measurement time: 2026-01-31 03:41

source: OpenWeatherMap

About Air Quality in Cesson-Sévigné

Air quality in Cesson-Sévigné 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 Cesson-Sévigné

  • 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 Cesson-Sévigné?

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 Cesson-Sévigné

If you're planning outdoor activities in Cesson-Sévigné, 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.