4 Pics 1 Word 5 Letters Answer for Level with little girl with red balloon standing in front of factory pollution, woman with cigarette, campfire in woods with trees, raw cooked salmon with lemon

Answer is:
SMOKE
4 Pics 1 Word 5 Letters Answer for Level with little girl with red balloon standing in front of factory pollution, woman with cigarette, campfire in woods with trees, raw cooked salmon with lemon