| Poussières fines (PM10) : moyennes journalières en µg/m3 | ||||
| Date | Fribourg: Parc de Pérolles | Fribourg: Chamblioux | Bulle: Rue de Vevey | Payerne (NABEL) |
| 31.08.2020 | 5 | 5 | 7 | 4 |
| 01.09.2020 | 6 | 5 | 7 | 4 |
| 02.09.2020 | 9 | 8 | 9 | 6 |
| 03.09.2020 | 9 | 8 | 10 | 8 |
| 04.09.2020 | 13 | 12 | 11 | 11 |
| 05.09.2020 | 10 | 10 | 11 | 10 |
| 06.09.2020 | 10 | 8 | 10 | 7 |
| 07.09.2020 | 11 | 10 | 11 | 9 |
| 08.09.2020 | 13 | 12 | 12 | 10 |
| 09.09.2020 | 16 | 14 | 13 | 13 |
| 10.09.2020 | 17 | 17 | 17 | 14 |
| 11.09.2020 | 19 | 20 | 17 | 15 |
| 12.09.2020 | 18 | 15 | 13 | 15 |
| 13.09.2020 | 17 | 17 | 16 | 16 |
| 14.09.2020 | 21 | 22 | 18 | 19 |
| 15.09.2020 | 21 | 19 | 18 | 21 |
| 16.09.2020 | 25 | 26 | 22 | 23 |
| 17.09.2020 | 23 | 27 | 23 | 26 |
| 18.09.2020 | 30 | 32 | 25 | 29 |
| 19.09.2020 | 25 | 29 | 21 | 28 |
| 20.09.2020 | 20 | 22 | 16 | 23 |
| 21.09.2020 | 12 | 12 | 11 | 11 |
| 22.09.2020 | 10 | 10 | 9 | 9 |
| 23.09.2020 | 9 | 7 | 8 | 6 |
| 24.09.2020 | 7 | 6 | 8 | 5 |
| 25.09.2020 | 4 | 3 | 5 | 2 |
| 26.09.2020 | 4 | 4 | 5 | 3 |
| 27.09.2020 | 4 | 3 | 5 | 2 |
| 28.09.2020 | 6 | 5 | 7 | 3 |
| 29.09.2020 | 7 | 6 | 10 | 5 |
| 30.09.2020 | 11 | 13 | 14 | 11 |