Related Clues:

• Houston blight
• It takes your breath away
• Troubling haze
• EPA worry
• 'Dongs of Sevotion' musician
• Unhealthy visibility reducer
• Attack ailment
• Pollution problem
• City scenery blurrer
• Industrial curse
• Reason for an inhaler
• Lung disorder
• Hazy layer
• Bronchial ailment
• Bronchial disorder