Related Clues:

• Polluted air
• Some factories contribute to it
• Big city bane
• Tap problem
• Pollution type
• Hose problem
• Environmental concern
• Journalist's bonanza
• Surreptitious news disclosure
• Unpleasant hangover?
• Puddle's cause, maybe
• It can leave you breathless
• Skyline obscurer
• Tap trouble
• EPA concern