| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Industrial activities | 4 | 1503 |
0.3%
|
| 2 | Waste burning | 10 | 1906 |
0.3%
|
| 3 | Transportation | 13 | 2753 |
0.5%
|
| 4 | Construction | 12 | 2053 |
0.4%
|
| 5 | Other | 9 | 1961 |
0.3%
|
| Sysmiss | 2787 | 565560 |