Related Clues:

• Scenery spoiler
• Light spray
• Flying hazard
• Miasma
• Poor visibility
• EPA concern *
• Its main ingredient is ozone
• Ocean spray
• Navigational hazard
• Mariner's hazard
• Visibility impairer
• Visible air pollution
• "Gorillas in the ___"
• Frequent London forecast
• Fog polluted by smoke