| Poussières fines (PM10) : moyennes journalières en µg/m3 | ||||
| Date | Fribourg: Parc de Pérolles | Fribourg: Chamblioux | Bulle: Rue de Vevey | Payerne (NABEL) |
| 27.04.2022 | 13 | 14 | 14 | 11 |
| 28.04.2022 | 13 | 14 | 16 | 9 |
| 29.04.2022 | 12 | 13 | 17 | |
| 30.04.2022 | 14 | 13 | 14 | |
| 01.05.2022 | 12 | 11 | 11 | |
| 02.05.2022 | 14 | 13 | 13 | |
| 03.05.2022 | 10 | 12 | 12 | |
| 04.05.2022 | 9 | 11 | 11 | |
| 05.05.2022 | 7 | 10 | 7 | 7 |
| 06.05.2022 | 11 | 13 | 11 | 11 |
| 07.05.2022 | 16 | 17 | 15 | 16 |
| 08.05.2022 | 11 | 13 | 11 | 10 |
| 09.05.2022 | 11 | 12 | 11 | 11 |
| 10.05.2022 | 9 | 10 | 12 | 10 |
| 11.05.2022 | 13 | 15 | 19 | 13 |
| 12.05.2022 | 15 | 15 | 22 | 15 |
| 13.05.2022 | 15 | 16 | 19 | 14 |
| 14.05.2022 | 14 | 15 | 16 | 12 |
| 15.05.2022 | 13 | 13 | 13 | 13 |
| 16.05.2022 | 13 | 14 | 19 | 13 |
| 17.05.2022 | 16 | 17 | 17 | 16 |
| 18.05.2022 | 17 | 17 | 18 | 15 |
| 19.05.2022 | 16 | 15 | 20 | 15 |
| 20.05.2022 | 19 | 18 | 24 | 19 |
| 21.05.2022 | 20 | 18 | 19 | 18 |
| 22.05.2022 | 20 | 18 | 21 | 16 |
| 23.05.2022 | 19 | 18 | 26 | 16 |
| 24.05.2022 | 6 | 7 | 11 | 5 |
| 25.05.2022 | 7 | 7 | 9 | 6 |
| 26.05.2022 | 8 | 7 | 8 | 5 |
| 27.05.2022 | 8 | 8 | 9 | 5 |