| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Industrial activities | 5 | 721 |
0.1%
|
| 2 | Waste burning | 7 | 1508 |
0.3%
|
| 3 | Transportation | 14 | 2751 |
0.5%
|
| 4 | Construction | 31 | 5452 |
0.9%
|
| 5 | Other | 22 | 4138 |
0.7%
|
| Sysmiss | 3436 | 580637 |