| Value | Category | Cases | |
|---|---|---|---|
| 1 | Local authority dumping site | 2169 |
77.9%
|
| 2 | Private dumping site | 359 |
12.9%
|
| 3 | Randomly | 94 |
3.4%
|
| 4 | Others, specify …… | 162 |
5.8%
|