| Feinstaub (PM10) : Tagesmittelwerte in µg/m3 | |||
| Date | Fribourg : Parc de Pérolles | Fribourg : Chamblioux | Bulle : Rue de Vevey |
| 23.03.2024 | 6 | 7 | 7 |
| 24.03.2024 | 3 | 5 | 4 |
| 25.03.2024 | 6 | 10 | 9 |
| 26.03.2024 | 13 | 15 | 16 |
| 27.03.2024 | 5 | 6 | 6 |
| 28.03.2024 | 5 | 6 | 5 |
| 29.03.2024 | 8 | 9 | 41 |
| 30.03.2024 | 63 | 72 | 80 |
| 31.03.2024 | 22 | 23 | 23 |
| 01.04.2024 | 3 | 4 | 3 |
| 02.04.2024 | 5 | 4 | 4 |
| 03.04.2024 | 5 | 5 | 5 |
| 04.04.2024 | 5 | 5 | 6 |
| 05.04.2024 | 9 | 8 | 12 |
| 06.04.2024 | 8 | 8 | 9 |
| 07.04.2024 | 19 | 21 | 29 |
| 08.04.2024 | 51 | 53 | 76 |
| 09.04.2024 | 16 | 18 | 17 |
| 10.04.2024 | 6 | 8 | 6 |
| 11.04.2024 | 9 | 10 | 10 |
| 12.04.2024 | 14 | 15 | 15 |
| 13.04.2024 | 14 | 16 | 13 |
| 14.04.2024 | 10 | 11 | 10 |
| 15.04.2024 | 16 | 17 | 17 |
| 16.04.2024 | 5 | 6 | 6 |
| 17.04.2024 | 3 | 4 | 3 |
| 18.04.2024 | 5 | 8 | 6 |
| 19.04.2024 | 8 | 8 | 7 |
| 20.04.2024 | 3 | 4 | 4 |
| 21.04.2024 | 3 | 7 | 3 |
| 22.04.2024 | 7 | 11 | 7 |