μg/m³ (0)
| 0 |
| 0.1 - 0.5 |
| 0.6 - 1 |
| 1.1 - 1.5 |
| 1.6 - 2 |
| 2.1 - 2.5 |
| 2.6 - 3 |
| 3.1 - 3.5 |
| 3.6 - 4 |
| 4.1 - 4.5 |
| 4.6 - 5 |
| 5.1 - 5.5 |
| 5.6 - 6 |
| 6.1 - 6.5 |
| 6.6 - 7 |
| 7.1 - 7.5 |
| 7.6 - 8 |
| 8.1 - 8.5 |
| 8.6 - 9 |
| 9.1 - 9.5 |
| 9.6 - 10 |
| 10.1 - 13 |
| 13.1 - 16 |
| 16.1 - 19 |
| 19.1 - 22 |
| 22.1 - 25 |
| 25.1 - 30 |
| 30.1 - 35 |
| 35.1 - 40 |
| 40.1 - 45 |
| 45.1 - 50 |
| 50.1 - 75 |
| 75.1 - 100 |
|