Related Clues:

• Gray blanket?
• Small feline in urban pall
• Consequence of traffic emissions
• Asthma trigger
• Pollution in the sky
• New Delhi air problem
• Staff coming around, but this would require filling
• Staff coming around but this needs filling
• Road blemish
• Road repair target
• Pavement hazard
• Road crew's concern
• Reason for a bad air day?
• Visible pollution
• Air that can sting the eyes