History: Lowest PM4.0/Highest PM4.0
| After years |
| Year |
Lowest PM4.0 (um) |
Highest PM4.0 (um) |
| 2026 |
17. 2. 05:27 |
0.8 |
5. 1. 18:54 |
99.8 |
| 2025 |
18. 7. 19:35 |
0.2 |
2. 12. 18:54 |
99.9 |
| Lowest PM4.0 |
| Day |
PM4.0 (um) |
| 18. 7. 2025 19:35 |
0.2 |
| 19. 7. 2025 21:05 |
0.2 |
| 28. 10. 2025 08:29 |
0.3 |
| 11. 7. 2025 11:02 |
0.3 |
| 27. 10. 2025 18:17 |
0.3 |
| 15. 7. 2025 12:46 |
0.3 |
| 24. 8. 2025 04:13 |
0.3 |
| 13. 7. 2025 19:23 |
0.3 |
| 12. 7. 2025 17:12 |
0.3 |
| 9. 7. 2025 04:23 |
0.3 |
| 2. 8. 2025 05:51 |
0.4 |
| 23. 8. 2025 23:42 |
0.4 |
| 10. 7. 2025 08:29 |
0.4 |
| 8. 7. 2025 20:17 |
0.4 |
| 23. 7. 2025 02:07 |
0.4 |
| Lowest PM4.0 - AVG |
| Day |
PM4.0 (um) |
| 19. 7. 2025 |
0.51 |
| 18. 7. 2025 |
0.55 |
| 15. 7. 2025 |
0.6 |
| 27. 10. 2025 |
0.6 |
| 13. 7. 2025 |
0.68 |
| 12. 7. 2025 |
0.75 |
| 26. 10. 2025 |
0.82 |
| 16. 7. 2025 |
0.84 |
| 14. 7. 2025 |
1.02 |
| 9. 7. 2025 |
1.03 |
| 25. 10. 2025 |
1.08 |
| 23. 8. 2025 |
1.09 |
| 1. 8. 2025 |
1.1 |
| 10. 7. 2025 |
1.11 |
| 8. 7. 2025 |
1.13 |
| Highest PM4.0 |
| Day |
PM4.0 (um) |
| 2. 12. 2025 18:54 |
99.9 |
| 5. 1. 2026 18:54 |
99.8 |
| 24. 1. 2026 13:00 |
99.8 |
| 25. 1. 2026 10:45 |
99.8 |
| 26. 11. 2025 18:01 |
99.7 |
| 15. 9. 2025 20:08 |
99.7 |
| 8. 11. 2025 11:52 |
99.6 |
| 24. 11. 2025 19:47 |
99.5 |
| 18. 6. 2025 22:50 |
99.5 |
| 8. 2. 2026 11:09 |
99.3 |
| 4. 11. 2025 20:53 |
99.3 |
| 4. 10. 2025 20:51 |
99.1 |
| 15. 1. 2026 18:39 |
99.1 |
| 20. 6. 2025 10:54 |
99.1 |
| 31. 8. 2025 09:15 |
99 |
| Highest PM4.0 - AVG |
| Day |
PM4.0 (um) |
| 24. 1. 2026 |
50.54 |
| 25. 1. 2026 |
48.64 |
| 6. 2. 2026 |
33.07 |
| 20. 12. 2025 |
30.33 |
| 21. 12. 2025 |
29.65 |
| 5. 2. 2026 |
27.98 |
| 15. 1. 2026 |
27.6 |
| 15. 2. 2026 |
24.11 |
| 14. 1. 2026 |
23.73 |
| 5. 1. 2026 |
23.41 |
| 7. 2. 2026 |
22.57 |
| 4. 2. 2026 |
21.49 |
| 26. 12. 2025 |
21.46 |
| 9. 11. 2025 |
21.4 |
| 17. 1. 2026 |
21.2 |