Related Clues:
- Blanket produced in Mexico City
- Beijing bane
- Concern of 11-Across
- Pollution with sulphur getting elder statesman upset
- Portmanteau word for smoky fog
- Choking conditions beginning to scare cat
- Hazy pollution
- Some regularly flee rising pollution
- Clean Air Act concern
- L.A. or Houston problem
- Beijing skyline haze
- Bad big city air
- Business mogul conceals air pollution
- Filthy air
- Certain pollutant