| Answer | Crossword Clue |
|---|---|
| NOISES | Some pollution causes |
| NOISES | Causes of ear pollution |
| NOISE | Some pollution |
| NOISE | Some urban pollution |
| SOOT | Some air pollution |
| SMAZE | Some air pollution |
| SMOG | Some air pollution |
| SOOT | Pollution on some bricks |
| SIRENS | Some urban noise pollution |
| NOISE | Source of some urban pollution |
