Related Clues:
- Air quality alert prompter
- Smokey fog
- Drops by a waterfall?
- Niagara Falls phenomenon
- Target for the Clean Air Act
- Weather phenomenon seen around the Golden Gate
- Finishes Government's criticism to impending pollution
- It's hardly a breath of fresh air
- It's heavier than a mist
- Common weather phenomenon in San Francisco
- Metaphor for old memories
- Type of car lights
- Waterfall product
- Environmental bane
- San Joaquin Valley problem