Related Clues:
- It's like mist but with pollutants
- Urban visibility hazard
- Potential cause of a respiratory problem
- ___ trail (cloud from an airplane)
- London’s Great ____of 1952 led to the Clean Air Act
- Fog intensified by smoke
- Writing about sporting blunder in bad visibility
- Cause of low visibility in some cities
- "When the ___ clears in Los Angeles, UCLA" (pun)
- Dark cloud on the horizon?
- Hazy air stuff
- Industrial polluted air
- Urban air hazard
- Gaseous water
- Sunrise obscurer