| Answer | Crossword Clue |
|---|---|
| SMOG | Urban health hazard |
| SMOG | Urban hazard |
| POTHOLE | Urban road hazard |
| SMOG | Airborne urban hazard |
| SMOG | Health hazard |
| RADON | Health hazard |
| FAT | Health hazard |
| RADON | Invisible health hazard |
| RADON | Household health hazard |
| RADON | Home health hazard |
| TOXIN | Atmospheric health hazard |
| RADON | Health hazard gas |
| SECONDHANDSMOKE | Health hazard from cigarettes |
| NOISE | Health hazard, in cities. |
