Related Clues:
- Beijing skyline feature
- Hazard in road even if in lines protected by stanchion
- Urban air concern
- Eye-irritating pollution
- Urban view obscurer
- Air quality issue
- Road damage
- Fumes over manuscript and score that's a self-inflicted problem
- Cityscape obscurer
- Bad city air
- The Great ____ of 1952 killed many Londoners
- Unhealthful haze
- Narrow cave
- Beijing environmental problem
- Air Quality Index factor