Clue: Air pollutant

Answer: 2 possible answers to Air pollutant. From 4 to 4 leters.

Air pollutant answers with 4 characters:

• SMOG
• SOOT

---

Similar Clues:

• Airliner types (DCS with 3 letters)
• Airline that doesn't schedule flights on Shabbat (ELAL with 4 letters)
• 'Modern Family' airer (ABC with 3 letters)
• "Just dropped off Nana at the airport #___"? (LATERGRAM with 9 letters)
• Airport freebie (e.g. IDTAG with 5 letters)
• Airplane seat option (AISLE with 5 letters)
• "1st and 10" airer (ESPN with 4 letters)
• Current water pollutant: Abbr. (MERC with 4 letters)
• Airport aide (SKYCAP with 6 letters)
• Airport detector activator (METAL with 5 letters)